{"id":2092,"date":"2018-02-06T16:48:09","date_gmt":"2018-02-06T08:48:09","guid":{"rendered":"https:\/\/ai.zhousir.top\/?p=2092"},"modified":"2026-08-18T12:09:37","modified_gmt":"2026-08-18T04:09:37","slug":"java-8%e6%96%b0%e7%89%b9%e6%80%a7%e5%ad%a6%e4%b9%a0%e4%b9%8blambda%e4%b8%8e%e5%87%bd%e6%95%b0%e5%bc%8f%e6%8e%a5%e5%8f%a3","status":"publish","type":"post","link":"https:\/\/ai.zhousir.top\/?p=2092","title":{"rendered":"Java 8\u65b0\u7279\u6027\u5b66\u4e60\u4e4blambda\u4e0e\u51fd\u6570\u5f0f\u63a5\u53e3"},"content":{"rendered":"<section id=\"wenyan\" style=\"font-family: system-ui, 'Apple Color Emoji', 'Segoe UI', 'Segoe UI Symbol', 'Noto Sans', Roboto, sans-serif; line-height: 1.75; font-size: 16px; color: #000000; caret-color: #000000;\" data-provider=\"WenYan\">\n<p style=\"margin: 1em 0px;\">Java 8 \u628a\u4e00\u5927\u5757\u65b0\u80fd\u529b\u644a\u5728\u4e00\u5f20\u56fe\u4e0a\uff1aLambda\u3001\u6d41\u3001\u65b0\u65e5\u671f\u3001Optional\u3001CompletableFuture\u2026\u2026\u672c\u6587\u53ea\u628a<strong style=\"color: #4870ac;\">\u51fd\u6570\u5f0f\u63a5\u53e3<\/strong>\u548c <strong style=\"color: #4870ac;\">lambda<\/strong> \u8bb2\u6e05\u695a\u2014\u2014lambda \u4e0d\u80fd\u5355\u72ec\u51fa\u73b0\uff0c\u5fc5\u987b\u88c5\u8fdb\u4e00\u4e2a SAM \u63a5\u53e3\u91cc\u3002<\/p>\n<p style=\"margin: 1em 0px;\">\u5148\u770b\u5168\u666f\uff08\u6765\u81ea\u7f51\u7edc\uff09\uff0c\u518d\u843d\u5230\u63a5\u53e3\u3001\u65b9\u6cd5\u5f15\u7528\u3001\u53d8\u91cf\u6355\u83b7\u548c\u5185\u7f6e Function \u5bb6\u65cf\u3002<\/p>\n<p style=\"margin: 1em 0px;\"><a href=\"https:\/\/ai.zhousir.top\/wp-content\/uploads\/2017\/08\/Java8-features.png\" rel=\"fancybox\"><img decoding=\"async\" loading=\"lazy\" class=\"alignnone  wp-image-2093\" src=\"https:\/\/ai.zhousir.top\/wp-content\/uploads\/2017\/08\/Java8-features.png\" alt=\"Java8-features\" width=\"713\" height=\"963\" \/><\/a><\/p>\n<h2 style=\"padding: 1px 12.5px; color: #ffffff; margin: 1.2em 0px 1em; border-radius: 4px; display: inline-block; background-color: #4870ac; font-size: 1.3em;\">\u4e00\u3001\u51fd\u6570\u5f0f\u63a5\u53e3<\/h2>\n<p style=\"margin: 1em 0px;\">\u51fd\u6570\u5f0f\u63a5\u53e3\u672c\u8d28\u4ecd\u662f\u63a5\u53e3\uff0c\u4f46\u662f <strong style=\"color: #4870ac;\">SAM<\/strong>\uff08Single Abstract Method\uff09\uff1a\u53ea\u6709\u4e00\u4e2a\u9700\u8981\u5b9e\u73b0\u7684\u62bd\u8c61\u65b9\u6cd5\u3002\u4ee5\u5b83\u4e3a\u53c2\u6570\u7684\u65b9\u6cd5\uff0c\u8c03\u7528\u65f6\u624d\u80fd\u4f20\u5165 lambda\u3002\u53cd\u8fc7\u6765\uff1a\u80fd\u4f20\u5165 lambda \u7684\u53c2\u6570\u7c7b\u578b\uff0c\u4e00\u5b9a\u662f\u51fd\u6570\u5f0f\u63a5\u53e3\uff0c\u901a\u5e38\u5e26 <code style=\"font-family: Menlo, Monaco, Consolas, 'Liberation Mono', 'Roboto Mono', 'Courier New', 'Microsoft YaHei', monospace; color: #4870ac; font-size: 0.9em; font-weight: normal; overflow-wrap: break-word; padding: 2px 4px; border-radius: 3px; margin: 2px; background-color: #f6f8fa; word-break: break-all;\">@FunctionalInterface<\/code>\u3002<\/p>\n<ul style=\"padding-left: 1rem; margin-left: 1rem; font-size: 0.9rem; list-style-type: disc;\">\n<li>\n<section>\u9759\u6001\u65b9\u6cd5\u548c <code style=\"font-family: Menlo, Monaco, Consolas, 'Liberation Mono', 'Roboto Mono', 'Courier New', 'Microsoft YaHei', monospace; color: #4870ac; font-size: 0.9em; font-weight: normal; overflow-wrap: break-word; padding: 2px 4px; border-radius: 3px; margin: 2px; background-color: #f6f8fa; word-break: break-all;\">default<\/code> \u65b9\u6cd5\u4e0d\u7b97\u8fdb SAM \u5951\u7ea6\uff0c\u53ef\u4ee5\u4efb\u610f\u52a0\uff08default \u591a\u4e3a\u517c\u5bb9\u8001 API\uff09\u3002<\/section>\n<\/li>\n<li>\n<section>\u8986\u76d6 Object \u7684 <code style=\"font-family: Menlo, Monaco, Consolas, 'Liberation Mono', 'Roboto Mono', 'Courier New', 'Microsoft YaHei', monospace; color: #4870ac; font-size: 0.9em; font-weight: normal; overflow-wrap: break-word; padding: 2px 4px; border-radius: 3px; margin: 2px; background-color: #f6f8fa; word-break: break-all;\">equals<\/code> \/ <code style=\"font-family: Menlo, Monaco, Consolas, 'Liberation Mono', 'Roboto Mono', 'Courier New', 'Microsoft YaHei', monospace; color: #4870ac; font-size: 0.9em; font-weight: normal; overflow-wrap: break-word; padding: 2px 4px; border-radius: 3px; margin: 2px; background-color: #f6f8fa; word-break: break-all;\">toString<\/code> \/ <code style=\"font-family: Menlo, Monaco, Consolas, 'Liberation Mono', 'Roboto Mono', 'Courier New', 'Microsoft YaHei', monospace; color: #4870ac; font-size: 0.9em; font-weight: normal; overflow-wrap: break-word; padding: 2px 4px; border-radius: 3px; margin: 2px; background-color: #f6f8fa; word-break: break-all;\">hashCode<\/code> \u4e5f\u4e0d\u7834\u574f\u51fd\u6570\u5f0f\u63a5\u53e3\u3002<\/section>\n<\/li>\n<li>\n<section>\u6ce8\u89e3\u4e0d\u662f\u5fc5\u987b\u7684\uff0c\u4f46\u5199\u4e0a\u80fd\u9632\u6b62\u540c\u4e8b\u518d\u5f80\u63a5\u53e3\u91cc\u585e\u7b2c\u4e8c\u4e2a\u62bd\u8c61\u65b9\u6cd5\u3002<\/section>\n<\/li>\n<\/ul>\n<p style=\"margin: 1em 0px;\">JDK 8 \u4e4b\u524d\u5df2\u7ecf\u5b58\u5728\u3001\u540e\u6765\u88ab\u6807\u6210\u51fd\u6570\u5f0f\u63a5\u53e3\u7684\u4f8b\u5b50\uff1a<\/p>\n<pre style=\"overflow: auto hidden; word-break: normal; white-space: pre; tab-size: 2; border-radius: 5px; line-height: 2; margin: 1em 0.5em; padding: 0.5em; box-shadow: rgba(0, 0, 0, 0.55) 0px 1px 5px; font-size: 12px; background: #002b36; max-width: 100%; overflow-wrap: normal;\"><code class=\"hljs\" style=\"word-break: normal; white-space: nowrap; tab-size: 2; font-size: 12px; font-family: Menlo, Monaco, Consolas, 'Liberation Mono', 'Roboto Mono', 'Courier New', 'Microsoft YaHei', monospace; display: block; overflow-x: auto; margin: 0.5em; padding: 3px 5px; color: #93a1a1; background: #002b36; overflow-wrap: normal;\">java.lang.Runnable\n\njava.util.concurrent.Callable\n\njava.security.PrivilegedAction\n\njava.util.Comparator\n\njava.io.FileFilter\n\njava.nio.file.PathMatcher\n\njava.lang.reflect.InvocationHandler\n\njava.beans.PropertyChangeListener\n\njava.awt.event.ActionListener\n\njavax.swing.event.ChangeListener<\/code><\/pre>\n<pre style=\"overflow: auto hidden; word-break: normal; white-space: pre; tab-size: 2; border-radius: 5px; line-height: 2; margin: 1em 0.5em; padding: 0.5em; box-shadow: rgba(0, 0, 0, 0.55) 0px 1px 5px; font-size: 12px; background: #002b36; max-width: 100%; overflow-wrap: normal;\"><code class=\"hljs\" style=\"word-break: normal; white-space: nowrap; tab-size: 2; font-size: 12px; font-family: Menlo, Monaco, Consolas, 'Liberation Mono', 'Roboto Mono', 'Courier New', 'Microsoft YaHei', monospace; display: block; overflow-x: auto; margin: 0.5em; padding: 3px 5px; color: #93a1a1; background: #002b36; overflow-wrap: normal;\">@FunctionalInterface\n\npublic interface Runnable {\n\n\/**\n\n* When an object implementing interface &lt;code&gt;Runnable&lt;\/code&gt; is used\n\n* to create a thread, starting the thread causes the object's\n\n* &lt;code&gt;run&lt;\/code&gt; method to be called in that separately executing\n\n* thread.\n\n* &lt;p&gt;\n\n* The general contract of the method &lt;code&gt;run&lt;\/code&gt; is that it may\n\n* take any action whatsoever.\n\n*\n\n* @see java.lang.Thread#run()\n\n*\/\n\npublic abstract void run();\n\n}<\/code><\/pre>\n<p style=\"margin: 1em 0px;\">lambda \u7684\u65b9\u6cd5\u4f53\u5c31\u662f\u8be5\u62bd\u8c61\u65b9\u6cd5\u7684\u5b9e\u73b0\uff1a<\/p>\n<pre style=\"overflow: auto hidden; word-break: normal; white-space: pre; tab-size: 2; border-radius: 5px; line-height: 2; margin: 1em 0.5em; padding: 0.5em; box-shadow: rgba(0, 0, 0, 0.55) 0px 1px 5px; font-size: 12px; background: #002b36; max-width: 100%; overflow-wrap: normal;\"><code class=\"hljs\" style=\"word-break: normal; white-space: nowrap; tab-size: 2; font-size: 12px; font-family: Menlo, Monaco, Consolas, 'Liberation Mono', 'Roboto Mono', 'Courier New', 'Microsoft YaHei', monospace; display: block; overflow-x: auto; margin: 0.5em; padding: 3px 5px; color: #93a1a1; background: #002b36; overflow-wrap: normal;\">@FunctionalInterface\n\ninterface Converter&lt;F, T&gt; {\n\n    T convert(F from);\n\n}\n\nConverter&lt;String, Integer&gt; converter = (from) -&gt; Integer.valueOf(from);\n\nInteger converted = converter.convert(\"123\");\n\nSystem.out.println(converted);    \/\/ 123<\/code><\/pre>\n<h2 style=\"padding: 1px 12.5px; color: #ffffff; margin: 1.2em 0px 1em; border-radius: 4px; display: inline-block; background-color: #4870ac; font-size: 1.3em;\">\u4e8c\u3001\u65b9\u6cd5\u4e0e\u6784\u9020\u51fd\u6570\u5f15\u7528<\/h2>\n<p style=\"margin: 1em 0px;\">\u4e0a\u9762\u8f6c\u6362\u53ef\u5199\u6210\u9759\u6001\u65b9\u6cd5\u5f15\u7528\uff1a<\/p>\n<pre style=\"overflow: auto hidden; word-break: normal; white-space: pre; tab-size: 2; border-radius: 5px; line-height: 2; margin: 1em 0.5em; padding: 0.5em; box-shadow: rgba(0, 0, 0, 0.55) 0px 1px 5px; font-size: 12px; background: #002b36; max-width: 100%; overflow-wrap: normal;\"><code class=\"hljs\" style=\"word-break: normal; white-space: nowrap; tab-size: 2; font-size: 12px; font-family: Menlo, Monaco, Consolas, 'Liberation Mono', 'Roboto Mono', 'Courier New', 'Microsoft YaHei', monospace; display: block; overflow-x: auto; margin: 0.5em; padding: 3px 5px; color: #93a1a1; background: #002b36; overflow-wrap: normal;\">Converter&lt;String, Integer&gt; converter = Integer::valueOf;\n\nInteger converted = converter.convert(\"123\");\n\nSystem.out.println(converted);   \/\/ 123<\/code><\/pre>\n<p style=\"margin: 1em 0px;\"><code style=\"font-family: Menlo, Monaco, Consolas, 'Liberation Mono', 'Roboto Mono', 'Courier New', 'Microsoft YaHei', monospace; color: #4870ac; font-size: 0.9em; font-weight: normal; overflow-wrap: break-word; padding: 2px 4px; border-radius: 3px; margin: 2px; background-color: #f6f8fa; word-break: break-all;\">::<\/code> \u4e5f\u80fd\u5f15\u7528\u5b9e\u4f8b\u65b9\u6cd5\uff1a<\/p>\n<pre style=\"overflow: auto hidden; word-break: normal; white-space: pre; tab-size: 2; border-radius: 5px; line-height: 2; margin: 1em 0.5em; padding: 0.5em; box-shadow: rgba(0, 0, 0, 0.55) 0px 1px 5px; font-size: 12px; background: #002b36; max-width: 100%; overflow-wrap: normal;\"><code class=\"hljs\" style=\"word-break: normal; white-space: nowrap; tab-size: 2; font-size: 12px; font-family: Menlo, Monaco, Consolas, 'Liberation Mono', 'Roboto Mono', 'Courier New', 'Microsoft YaHei', monospace; display: block; overflow-x: auto; margin: 0.5em; padding: 3px 5px; color: #93a1a1; background: #002b36; overflow-wrap: normal;\">class Something {\n\n    String startsWith(String s) {\n\n        return String.valueOf(s.charAt(0));\n\n    }\n\n}\n\nSomething something = new Something();\n\nConverter&lt;String, String&gt; converter = something::startsWith;\n\nString converted = converter.convert(\"Java\");\n\nSystem.out.println(converted);    \/\/ \"J\"<\/code><\/pre>\n<p style=\"margin: 1em 0px;\">\u6784\u9020\u51fd\u6570\u5f15\u7528\u8981\u5148\u6709\u5de5\u5382\u63a5\u53e3\uff0c\u7f16\u8bd1\u5668\u6309 <code style=\"font-family: Menlo, Monaco, Consolas, 'Liberation Mono', 'Roboto Mono', 'Courier New', 'Microsoft YaHei', monospace; color: #4870ac; font-size: 0.9em; font-weight: normal; overflow-wrap: break-word; padding: 2px 4px; border-radius: 3px; margin: 2px; background-color: #f6f8fa; word-break: break-all;\">create<\/code> \u7684\u7b7e\u540d\u9009\u5408\u9002\u7684\u6784\u9020\uff1a<\/p>\n<pre style=\"overflow: auto hidden; word-break: normal; white-space: pre; tab-size: 2; border-radius: 5px; line-height: 2; margin: 1em 0.5em; padding: 0.5em; box-shadow: rgba(0, 0, 0, 0.55) 0px 1px 5px; font-size: 12px; background: #002b36; max-width: 100%; overflow-wrap: normal;\"><code class=\"hljs\" style=\"word-break: normal; white-space: nowrap; tab-size: 2; font-size: 12px; font-family: Menlo, Monaco, Consolas, 'Liberation Mono', 'Roboto Mono', 'Courier New', 'Microsoft YaHei', monospace; display: block; overflow-x: auto; margin: 0.5em; padding: 3px 5px; color: #93a1a1; background: #002b36; overflow-wrap: normal;\">class Person {\n\n    String firstName;\n\n    String lastName;\n\n    Person() {}\n\n    Person(String firstName, String lastName) {\n\n        this.firstName = firstName;\n\n        this.lastName = lastName;\n\n    }\n\n}<\/code><\/pre>\n<pre style=\"overflow: auto hidden; word-break: normal; white-space: pre; tab-size: 2; border-radius: 5px; line-height: 2; margin: 1em 0.5em; padding: 0.5em; box-shadow: rgba(0, 0, 0, 0.55) 0px 1px 5px; font-size: 12px; background: #002b36; max-width: 100%; overflow-wrap: normal;\"><code class=\"hljs\" style=\"word-break: normal; white-space: nowrap; tab-size: 2; font-size: 12px; font-family: Menlo, Monaco, Consolas, 'Liberation Mono', 'Roboto Mono', 'Courier New', 'Microsoft YaHei', monospace; display: block; overflow-x: auto; margin: 0.5em; padding: 3px 5px; color: #93a1a1; background: #002b36; overflow-wrap: normal;\">interface PersonFactory&lt;P extends Person&gt; {\n\n    P create(String firstName, String lastName);\n\n}<\/code><\/pre>\n<pre style=\"overflow: auto hidden; word-break: normal; white-space: pre; tab-size: 2; border-radius: 5px; line-height: 2; margin: 1em 0.5em; padding: 0.5em; box-shadow: rgba(0, 0, 0, 0.55) 0px 1px 5px; font-size: 12px; background: #002b36; max-width: 100%; overflow-wrap: normal;\"><code class=\"hljs\" style=\"word-break: normal; white-space: nowrap; tab-size: 2; font-size: 12px; font-family: Menlo, Monaco, Consolas, 'Liberation Mono', 'Roboto Mono', 'Courier New', 'Microsoft YaHei', monospace; display: block; overflow-x: auto; margin: 0.5em; padding: 3px 5px; color: #93a1a1; background: #002b36; overflow-wrap: normal;\">PersonFactory&lt;Person&gt; personFactory = Person::new;\n\nPerson person = personFactory.create(\"Peter\", \"Parker\");<\/code><\/pre>\n<pre style=\"overflow: auto hidden; word-break: normal; white-space: pre; tab-size: 2; border-radius: 5px; line-height: 2; margin: 1em 0.5em; padding: 0.5em; box-shadow: rgba(0, 0, 0, 0.55) 0px 1px 5px; font-size: 12px; background: #002b36; max-width: 100%; overflow-wrap: normal;\"><code class=\"hljs\" style=\"word-break: normal; white-space: nowrap; tab-size: 2; font-size: 12px; font-family: Menlo, Monaco, Consolas, 'Liberation Mono', 'Roboto Mono', 'Courier New', 'Microsoft YaHei', monospace; display: block; overflow-x: auto; margin: 0.5em; padding: 3px 5px; color: #93a1a1; background: #002b36; overflow-wrap: normal;\">\u5982\u679c\u662f\u9759\u6001\u65b9\u6cd5\uff0c\u5219\u662fClassName::methodName\u3002\u5982 Object ::equals\n\n\u5982\u679c\u662f\u5b9e\u4f8b\u65b9\u6cd5\uff0c\u5219\u662fInstance::methodName\u3002\u5982Object obj=new Object();obj::equals;\n\n\u6784\u9020\u51fd\u6570.\u5219\u662fClassName::new<\/code><\/pre>\n<h2 style=\"padding: 1px 12.5px; color: #ffffff; margin: 1.2em 0px 1em; border-radius: 4px; display: inline-block; background-color: #4870ac; font-size: 1.3em;\">\u4e09\u3001Lambda \u7684\u53d8\u91cf\u8303\u56f4<\/h2>\n<p style=\"margin: 1em 0px;\">\u5bf9\u5916\u90e8\u53d8\u91cf\u7684\u8bbf\u95ee\u7c92\u5ea6\u548c\u533f\u540d\u7c7b\u5f88\u50cf\uff1a\u80fd\u7528\u5230\u5916\u56f4\u7684 effectively final \u5c40\u90e8\u53d8\u91cf\uff0c\u4ee5\u53ca\u6210\u5458\/\u9759\u6001\u53d8\u91cf\u3002<\/p>\n<h3 style=\"padding: 0px; color: #4870ac; margin: 1.2em 0px 1em; font-size: 1.3em;\">\u8bbf\u95ee\u5c40\u90e8\u53d8\u91cf<\/h3>\n<pre style=\"overflow: auto hidden; word-break: normal; white-space: pre; tab-size: 2; border-radius: 5px; line-height: 2; margin: 1em 0.5em; padding: 0.5em; box-shadow: rgba(0, 0, 0, 0.55) 0px 1px 5px; font-size: 12px; background: #002b36; max-width: 100%; overflow-wrap: normal;\"><code class=\"hljs\" style=\"word-break: normal; white-space: nowrap; tab-size: 2; font-size: 12px; font-family: Menlo, Monaco, Consolas, 'Liberation Mono', 'Roboto Mono', 'Courier New', 'Microsoft YaHei', monospace; display: block; overflow-x: auto; margin: 0.5em; padding: 3px 5px; color: #93a1a1; background: #002b36; overflow-wrap: normal;\">final int num = 1;\n\nConverter&lt;Integer, String&gt; stringConverter =\n\n        (from) -&gt; String.valueOf(from + num);\n\nstringConverter.convert(2);     \/\/ 3<\/code><\/pre>\n<p style=\"margin: 1em 0px;\">\u548c\u533f\u540d\u7c7b\u4e0d\u540c\uff0c\u4e0d\u5fc5\u663e\u5f0f\u5199 <code style=\"font-family: Menlo, Monaco, Consolas, 'Liberation Mono', 'Roboto Mono', 'Courier New', 'Microsoft YaHei', monospace; color: #4870ac; font-size: 0.9em; font-weight: normal; overflow-wrap: break-word; padding: 2px 4px; border-radius: 3px; margin: 2px; background-color: #f6f8fa; word-break: break-all;\">final<\/code>\uff0c\u4f46\u7f16\u8bd1\u671f\u4ecd\u5f53 final \u7528\uff1a<\/p>\n<pre style=\"overflow: auto hidden; word-break: normal; white-space: pre; tab-size: 2; border-radius: 5px; line-height: 2; margin: 1em 0.5em; padding: 0.5em; box-shadow: rgba(0, 0, 0, 0.55) 0px 1px 5px; font-size: 12px; background: #002b36; max-width: 100%; overflow-wrap: normal;\"><code class=\"hljs\" style=\"word-break: normal; white-space: nowrap; tab-size: 2; font-size: 12px; font-family: Menlo, Monaco, Consolas, 'Liberation Mono', 'Roboto Mono', 'Courier New', 'Microsoft YaHei', monospace; display: block; overflow-x: auto; margin: 0.5em; padding: 3px 5px; color: #93a1a1; background: #002b36; overflow-wrap: normal;\">int num = 1;\n\nConverter&lt;Integer, String&gt; stringConverter =\n\n        (from) -&gt; String.valueOf(from + num);\n\nstringConverter.convert(2);     \/\/ 3<\/code><\/pre>\n<p style=\"margin: 1em 0px;\">\u540e\u9762\u518d\u6539 <code style=\"font-family: Menlo, Monaco, Consolas, 'Liberation Mono', 'Roboto Mono', 'Courier New', 'Microsoft YaHei', monospace; color: #4870ac; font-size: 0.9em; font-weight: normal; overflow-wrap: break-word; padding: 2px 4px; border-radius: 3px; margin: 2px; background-color: #f6f8fa; word-break: break-all;\">num<\/code>\uff0c\u6216\u5728 lambda \u91cc\u6539\u5b83\uff0c\u90fd\u4e0d\u5408\u6cd5\uff1a<\/p>\n<pre style=\"overflow: auto hidden; word-break: normal; white-space: pre; tab-size: 2; border-radius: 5px; line-height: 2; margin: 1em 0.5em; padding: 0.5em; box-shadow: rgba(0, 0, 0, 0.55) 0px 1px 5px; font-size: 12px; background: #002b36; max-width: 100%; overflow-wrap: normal;\"><code class=\"hljs\" style=\"word-break: normal; white-space: nowrap; tab-size: 2; font-size: 12px; font-family: Menlo, Monaco, Consolas, 'Liberation Mono', 'Roboto Mono', 'Courier New', 'Microsoft YaHei', monospace; display: block; overflow-x: auto; margin: 0.5em; padding: 3px 5px; color: #93a1a1; background: #002b36; overflow-wrap: normal;\">int num = 1;\n\nConverter&lt;Integer, String&gt; stringConverter =\n\n        (from) -&gt; String.valueOf(from + num);\n\nnum = 3;<\/code><\/pre>\n<h3 style=\"padding: 0px; color: #4870ac; margin: 1.2em 0px 1em; font-size: 1.3em;\">\u6210\u5458\u53d8\u91cf\u548c\u9759\u6001\u53d8\u91cf<\/h3>\n<p style=\"margin: 1em 0px;\">\u5c40\u90e8\u53d8\u91cf\u53ea\u8bfb\uff0c\u6210\u5458\u548c\u9759\u6001\u53d8\u91cf\u5728 lambda \u91cc\u53ef\u8bfb\u53ef\u5199\uff1a<\/p>\n<pre style=\"overflow: auto hidden; word-break: normal; white-space: pre; tab-size: 2; border-radius: 5px; line-height: 2; margin: 1em 0.5em; padding: 0.5em; box-shadow: rgba(0, 0, 0, 0.55) 0px 1px 5px; font-size: 12px; background: #002b36; max-width: 100%; overflow-wrap: normal;\"><code class=\"hljs\" style=\"word-break: normal; white-space: nowrap; tab-size: 2; font-size: 12px; font-family: Menlo, Monaco, Consolas, 'Liberation Mono', 'Roboto Mono', 'Courier New', 'Microsoft YaHei', monospace; display: block; overflow-x: auto; margin: 0.5em; padding: 3px 5px; color: #93a1a1; background: #002b36; overflow-wrap: normal;\">class Lambda4 {\n\n    static int outerStaticNum;\n\n    int outerNum;\n\n    void testScopes() {\n\n        Converter&lt;Integer, String&gt; stringConverter1 = (from) -&gt; {\n\n            outerNum = 23;\n\n            return String.valueOf(from);\n\n        };\n\n        Converter&lt;Integer, String&gt; stringConverter2 = (from) -&gt; {\n\n            outerStaticNum = 72;\n\n            return String.valueOf(from);\n\n        };\n\n    }\n\n}<\/code><\/pre>\n<h3 style=\"padding: 0px; color: #4870ac; margin: 1.2em 0px 1em; font-size: 1.3em;\">\u9ed8\u8ba4\u65b9\u6cd5\u8fdb\u4e0d\u4e86 lambda<\/h3>\n<p style=\"margin: 1em 0px;\">\u63a5\u53e3\u91cc\u7684 default \u65b9\u6cd5\u80fd\u7ed9\u533f\u540d\u7c7b\u5b9e\u4f8b\u7528\uff0c\u4f46 lambda \u5185\u90e8\u4e0d\u80fd\u76f4\u63a5\u8c03\u3002\u4e0b\u9762\u8fd9\u884c\u7f16\u8bd1\u4e0d\u8fc7\uff1a<\/p>\n<pre style=\"overflow: auto hidden; word-break: normal; white-space: pre; tab-size: 2; border-radius: 5px; line-height: 2; margin: 1em 0.5em; padding: 0.5em; box-shadow: rgba(0, 0, 0, 0.55) 0px 1px 5px; font-size: 12px; background: #002b36; max-width: 100%; overflow-wrap: normal;\"><code class=\"hljs\" style=\"word-break: normal; white-space: nowrap; tab-size: 2; font-size: 12px; font-family: Menlo, Monaco, Consolas, 'Liberation Mono', 'Roboto Mono', 'Courier New', 'Microsoft YaHei', monospace; display: block; overflow-x: auto; margin: 0.5em; padding: 3px 5px; color: #93a1a1; background: #002b36; overflow-wrap: normal;\">Formula formula = (a) -&gt; sqrt(a * 100);<\/code><\/pre>\n<h2 style=\"padding: 1px 12.5px; color: #ffffff; margin: 1.2em 0px 1em; border-radius: 4px; display: inline-block; background-color: #4870ac; font-size: 1.3em;\">\u56db\u3001\u5185\u7f6e\u51fd\u6570\u5f0f\u63a5\u53e3<\/h2>\n<p style=\"margin: 1em 0px;\">JDK 8 \u5185\u7f6e\u4e86\u4e00\u7ec4\uff1a<code style=\"font-family: Menlo, Monaco, Consolas, 'Liberation Mono', 'Roboto Mono', 'Courier New', 'Microsoft YaHei', monospace; color: #4870ac; font-size: 0.9em; font-weight: normal; overflow-wrap: break-word; padding: 2px 4px; border-radius: 3px; margin: 2px; background-color: #f6f8fa; word-break: break-all;\">Consumer<\/code>\u3001<code style=\"font-family: Menlo, Monaco, Consolas, 'Liberation Mono', 'Roboto Mono', 'Courier New', 'Microsoft YaHei', monospace; color: #4870ac; font-size: 0.9em; font-weight: normal; overflow-wrap: break-word; padding: 2px 4px; border-radius: 3px; margin: 2px; background-color: #f6f8fa; word-break: break-all;\">Supplier<\/code>\u3001<code style=\"font-family: Menlo, Monaco, Consolas, 'Liberation Mono', 'Roboto Mono', 'Courier New', 'Microsoft YaHei', monospace; color: #4870ac; font-size: 0.9em; font-weight: normal; overflow-wrap: break-word; padding: 2px 4px; border-radius: 3px; margin: 2px; background-color: #f6f8fa; word-break: break-all;\">Function<\/code>\u3001<code style=\"font-family: Menlo, Monaco, Consolas, 'Liberation Mono', 'Roboto Mono', 'Courier New', 'Microsoft YaHei', monospace; color: #4870ac; font-size: 0.9em; font-weight: normal; overflow-wrap: break-word; padding: 2px 4px; border-radius: 3px; margin: 2px; background-color: #f6f8fa; word-break: break-all;\">Predicate<\/code>\u3001<code style=\"font-family: Menlo, Monaco, Consolas, 'Liberation Mono', 'Roboto Mono', 'Courier New', 'Microsoft YaHei', monospace; color: #4870ac; font-size: 0.9em; font-weight: normal; overflow-wrap: break-word; padding: 2px 4px; border-radius: 3px; margin: 2px; background-color: #f6f8fa; word-break: break-all;\">BinaryOperator<\/code> \u7b49\uff0c\u8001\u63a5\u53e3\u5982 Comparator\u3001Runnable \u4e5f\u53ef\u6807 <code style=\"font-family: Menlo, Monaco, Consolas, 'Liberation Mono', 'Roboto Mono', 'Courier New', 'Microsoft YaHei', monospace; color: #4870ac; font-size: 0.9em; font-weight: normal; overflow-wrap: break-word; padding: 2px 4px; border-radius: 3px; margin: 2px; background-color: #f6f8fa; word-break: break-all;\">@FunctionalInterface<\/code> \u5f00 Lambda\u3002<\/p>\n<p style=\"margin: 1em 0px;\"><a href=\"https:\/\/ai.zhousir.top\/wp-content\/uploads\/2017\/08\/7a34cef4b0d56132aab24f78bc68921e.png\" rel=\"fancybox\"><img decoding=\"async\" loading=\"lazy\" class=\"alignnone  wp-image-2095\" src=\"https:\/\/ai.zhousir.top\/wp-content\/uploads\/2017\/08\/7a34cef4b0d56132aab24f78bc68921e.png\" alt=\"7a34cef4b0d56132aab24f78bc68921e\" width=\"1181\" height=\"341\" \/><\/a><\/p>\n<p style=\"margin: 1em 0px;\"><strong style=\"color: #4870ac;\">\u6d88\u8d39\u578b<\/strong>\uff1a<\/p>\n<pre style=\"overflow: auto hidden; word-break: normal; white-space: pre; tab-size: 2; border-radius: 5px; line-height: 2; margin: 1em 0.5em; padding: 0.5em; box-shadow: rgba(0, 0, 0, 0.55) 0px 1px 5px; font-size: 12px; background: #002b36; max-width: 100%; overflow-wrap: normal;\"><code class=\"hljs\" style=\"word-break: normal; white-space: nowrap; tab-size: 2; font-size: 12px; font-family: Menlo, Monaco, Consolas, 'Liberation Mono', 'Roboto Mono', 'Courier New', 'Microsoft YaHei', monospace; display: block; overflow-x: auto; margin: 0.5em; padding: 3px 5px; color: #93a1a1; background: #002b36; overflow-wrap: normal;\">public static void donation(Integer money, Consumer&lt;Integer&gt; consumer){\n\n    consumer.accept(money);\n\n}\n\npublic static void main(String[] args) {\n\n    donation(1000, money -&gt; System.out.println(\"\u597d\u5fc3\u7684\u9ea6\u4e50\u8fea\u4e3aBlade\u6350\u8d60\u4e86\"+money+\"\u5143\")) ;\n\n}<\/code><\/pre>\n<p style=\"margin: 1em 0px;\"><strong style=\"color: #4870ac;\">\u4f9b\u7ed9\u578b<\/strong>\uff1a<\/p>\n<pre style=\"overflow: auto hidden; word-break: normal; white-space: pre; tab-size: 2; border-radius: 5px; line-height: 2; margin: 1em 0.5em; padding: 0.5em; box-shadow: rgba(0, 0, 0, 0.55) 0px 1px 5px; font-size: 12px; background: #002b36; max-width: 100%; overflow-wrap: normal;\"><code class=\"hljs\" style=\"word-break: normal; white-space: nowrap; tab-size: 2; font-size: 12px; font-family: Menlo, Monaco, Consolas, 'Liberation Mono', 'Roboto Mono', 'Courier New', 'Microsoft YaHei', monospace; display: block; overflow-x: auto; margin: 0.5em; padding: 3px 5px; color: #93a1a1; background: #002b36; overflow-wrap: normal;\">public static List&lt;Integer&gt; supply(Integer num, Supplier&lt;Integer&gt; supplier){\n\n       List&lt;Integer&gt; resultList = new ArrayList&lt;Integer&gt;()   ;\n\n       for(int x=0;x&lt;num;x++)\n\n           resultList.add(supplier.get());\n\n       return resultList ;\n\n}\n\npublic static void main(String[] args) {\n\n    List&lt;Integer&gt; list = supply(10,() -&gt; (int)(Math.random()*100));\n\n    list.forEach(System.out::println);\n\n}<\/code><\/pre>\n<p style=\"margin: 1em 0px;\"><strong style=\"color: #4870ac;\">\u51fd\u6570\u578b<\/strong>\uff08\u5b57\u7b26\u4e32\u8f6c Integer\uff09\uff1a<\/p>\n<pre style=\"overflow: auto hidden; word-break: normal; white-space: pre; tab-size: 2; border-radius: 5px; line-height: 2; margin: 1em 0.5em; padding: 0.5em; box-shadow: rgba(0, 0, 0, 0.55) 0px 1px 5px; font-size: 12px; background: #002b36; max-width: 100%; overflow-wrap: normal;\"><code class=\"hljs\" style=\"word-break: normal; white-space: nowrap; tab-size: 2; font-size: 12px; font-family: Menlo, Monaco, Consolas, 'Liberation Mono', 'Roboto Mono', 'Courier New', 'Microsoft YaHei', monospace; display: block; overflow-x: auto; margin: 0.5em; padding: 3px 5px; color: #93a1a1; background: #002b36; overflow-wrap: normal;\">public static Integer convert(String str, Function&lt;String, Integer&gt; function) {\n\n    return function.apply(str);\n\n}\n\npublic static void main(String[] args) {\n\n    Integer value = convert(\"28\", x -&gt; Integer.parseInt(x));\n\n}<\/code><\/pre>\n<p style=\"margin: 1em 0px;\"><strong style=\"color: #4870ac;\">\u65ad\u8a00\u578b<\/strong>\uff08\u7b5b\u4e24\u4e2a\u5b57\u7684\u6c34\u679c\uff09\uff1a<\/p>\n<pre style=\"overflow: auto hidden; word-break: normal; white-space: pre; tab-size: 2; border-radius: 5px; line-height: 2; margin: 1em 0.5em; padding: 0.5em; box-shadow: rgba(0, 0, 0, 0.55) 0px 1px 5px; font-size: 12px; background: #002b36; max-width: 100%; overflow-wrap: normal;\"><code class=\"hljs\" style=\"word-break: normal; white-space: nowrap; tab-size: 2; font-size: 12px; font-family: Menlo, Monaco, Consolas, 'Liberation Mono', 'Roboto Mono', 'Courier New', 'Microsoft YaHei', monospace; display: block; overflow-x: auto; margin: 0.5em; padding: 3px 5px; color: #93a1a1; background: #002b36; overflow-wrap: normal;\">public static List&lt;String&gt; filter(List&lt;String&gt; fruit, Predicate&lt;String&gt; predicate){\n\n    List&lt;String&gt; f = new ArrayList&lt;&gt;();\n\n    for (String s : fruit) {\n\n        if(predicate.test(s)){\n\n            f.add(s);\n\n        }\n\n    }\n\n    return f;\n\n}\n\npublic static void main(String[] args) {\n\n    List&lt;String&gt; fruit = Arrays.asList(\"\u9999\u8549\", \"\u54c8\u5bc6\u74dc\", \"\u69b4\u83b2\", \"\u706b\u9f99\u679c\", \"\u6c34\u871c\u6843\");\n\n    List&lt;String&gt; newFruit = filter(fruit, (f) -&gt; f.length() == 2);\n\n    System.out.println(newFruit);\n\n}<\/code><\/pre>\n<p style=\"margin: 1em 0px;\">\u81ea\u5df1\u5199\u7684\u65b9\u6cd5\u82e5\u8981\u6536 lambda\uff0c\u53c2\u6570\u7528\u8fd9\u4e9b\u63a5\u53e3\u5373\u53ef\uff1a<\/p>\n<pre style=\"overflow: auto hidden; word-break: normal; white-space: pre; tab-size: 2; border-radius: 5px; line-height: 2; margin: 1em 0.5em; padding: 0.5em; box-shadow: rgba(0, 0, 0, 0.55) 0px 1px 5px; font-size: 12px; background: #002b36; max-width: 100%; overflow-wrap: normal;\"><code class=\"hljs\" style=\"word-break: normal; white-space: nowrap; tab-size: 2; font-size: 12px; font-family: Menlo, Monaco, Consolas, 'Liberation Mono', 'Roboto Mono', 'Courier New', 'Microsoft YaHei', monospace; display: block; overflow-x: auto; margin: 0.5em; padding: 3px 5px; color: #93a1a1; background: #002b36; overflow-wrap: normal;\">\/\/ Function&lt;T, R&gt; -T\u4f5c\u4e3a\u8f93\u5165\uff0c\u8fd4\u56de\u7684R\u4f5c\u4e3a\u8f93\u51fa\n\n    Function&lt;String,String&gt; function = (x) -&gt; {System.out.print(x+\": \");return \"Function\";};\n\n    System.out.println(function.apply(\"hello world\"));\n\n    \/\/Predicate&lt;T&gt; -T\u4f5c\u4e3a\u8f93\u5165\uff0c\u8fd4\u56de\u7684boolean\u503c\u4f5c\u4e3a\u8f93\u51fa\n\n    Predicate&lt;String&gt; pre = (x) -&gt;{System.out.print(x);return false;};\n\n    System.out.println(\": \"+pre.test(\"hello World\"));\n\n    \/\/Consumer&lt;T&gt; - T\u4f5c\u4e3a\u8f93\u5165\uff0c\u6267\u884c\u67d0\u79cd\u52a8\u4f5c\u4f46\u6ca1\u6709\u8fd4\u56de\u503c\n\n    Consumer&lt;String&gt; con = (x) -&gt; {System.out.println(x);};\n\n    con.accept(\"hello world\");\n\n    \/\/Supplier&lt;T&gt; - \u6ca1\u6709\u4efb\u4f55\u8f93\u5165\uff0c\u8fd4\u56deT\n\n    Supplier&lt;String&gt; supp = () -&gt; {return \"Supplier\";};\n\n    System.out.println(supp.get());\n\n    \/\/BinaryOperator&lt;T&gt; -\u4e24\u4e2aT\u4f5c\u4e3a\u8f93\u5165\uff0c\u8fd4\u56de\u4e00\u4e2aT\u4f5c\u4e3a\u8f93\u51fa\uff0c\u5bf9\u4e8e\u201creduce\u201d\u64cd\u4f5c\u5f88\u6709\u7528\n\n    BinaryOperator&lt;String&gt; bina = (x,y) -&gt;{System.out.print(x+\" \"+y);return \"BinaryOperator\";};\n\n    System.out.println(\"  \"+bina.apply(\"hello \",\"world\"));<\/code><\/pre>\n<h2 style=\"padding: 1px 12.5px; color: #ffffff; margin: 1.2em 0px 1em; border-radius: 4px; display: inline-block; background-color: #4870ac; font-size: 1.3em;\">\u4e94\u3001\u4ec0\u4e48\u662f lambda\uff0c\u8bed\u6cd5\u957f\u4ec0\u4e48\u6837<\/h2>\n<p style=\"margin: 1em 0px;\">lambda \u662f\u4e00\u6bb5\u53ef\u4f20\u9012\u7684\u4ee3\u7801\uff1a\u628a\u300c\u4f20\u6570\u636e\u300d\u53d8\u6210\u300c\u4f20\u884c\u4e3a\u300d\u3002Java 8 \u4e4b\u524d\u5199\u7ebf\u7a0b\uff0c\u533f\u540d\u5185\u90e8\u7c7b\u8981\u56f4\u516d\u884c\u6837\u677f\uff1a<\/p>\n<pre style=\"overflow: auto hidden; word-break: normal; white-space: pre; tab-size: 2; border-radius: 5px; line-height: 2; margin: 1em 0.5em; padding: 0.5em; box-shadow: rgba(0, 0, 0, 0.55) 0px 1px 5px; font-size: 12px; background: #002b36; max-width: 100%; overflow-wrap: normal;\"><code class=\"hljs\" style=\"word-break: normal; white-space: nowrap; tab-size: 2; font-size: 12px; font-family: Menlo, Monaco, Consolas, 'Liberation Mono', 'Roboto Mono', 'Courier New', 'Microsoft YaHei', monospace; display: block; overflow-x: auto; margin: 0.5em; padding: 3px 5px; color: #93a1a1; background: #002b36; overflow-wrap: normal;\">Runnable r = new Runnable() {\n\n    @Override\n\n    public void run() {\n\n        System.out.println(\"do something.\");\n\n    }\n\n}<\/code><\/pre>\n<p style=\"margin: 1em 0px;\">lambda \u53ea\u9700\uff1a<\/p>\n<pre style=\"overflow: auto hidden; word-break: normal; white-space: pre; tab-size: 2; border-radius: 5px; line-height: 2; margin: 1em 0.5em; padding: 0.5em; box-shadow: rgba(0, 0, 0, 0.55) 0px 1px 5px; font-size: 12px; background: #002b36; max-width: 100%; overflow-wrap: normal;\"><code class=\"hljs\" style=\"word-break: normal; white-space: nowrap; tab-size: 2; font-size: 12px; font-family: Menlo, Monaco, Consolas, 'Liberation Mono', 'Roboto Mono', 'Courier New', 'Microsoft YaHei', monospace; display: block; overflow-x: auto; margin: 0.5em; padding: 3px 5px; color: #93a1a1; background: #002b36; overflow-wrap: normal;\">Runnable r = () -&gt; System.out.println(\"do something.\");<\/code><\/pre>\n<p style=\"margin: 1em 0px;\">\u8bed\u6cd5\u4e09\u5757\uff1a\u9017\u53f7\u5206\u9694\u7684\u5f62\u5f0f\u53c2\u6570\uff08\u5373 SAM \u65b9\u6cd5\u7684\u53c2\u6570\uff09\u2192 \u7bad\u5934 <code style=\"font-family: Menlo, Monaco, Consolas, 'Liberation Mono', 'Roboto Mono', 'Courier New', 'Microsoft YaHei', monospace; color: #4870ac; font-size: 0.9em; font-weight: normal; overflow-wrap: break-word; padding: 2px 4px; border-radius: 3px; margin: 2px; background-color: #f6f8fa; word-break: break-all;\">-&gt;<\/code> \u2192 \u65b9\u6cd5\u4f53\uff08\u8868\u8fbe\u5f0f\u6216 <code style=\"font-family: Menlo, Monaco, Consolas, 'Liberation Mono', 'Roboto Mono', 'Courier New', 'Microsoft YaHei', monospace; color: #4870ac; font-size: 0.9em; font-weight: normal; overflow-wrap: break-word; padding: 2px 4px; border-radius: 3px; margin: 2px; background-color: #f6f8fa; word-break: break-all;\">{}<\/code> \u4ee3\u7801\u5757\uff1b\u82e5 SAM \u8fd4\u56de void \u53ef\u4ee5\u4e0d\u52a0\u5927\u62ec\u53f7\uff09\u3002<\/p>\n<p style=\"margin: 1em 0px;\"><a href=\"https:\/\/ai.zhousir.top\/wp-content\/uploads\/2017\/08\/cd90ec18cb1543b154df75fa6850a733.png\" rel=\"fancybox\"><img decoding=\"async\" loading=\"lazy\" class=\"alignnone  wp-image-2094\" src=\"https:\/\/ai.zhousir.top\/wp-content\/uploads\/2017\/08\/cd90ec18cb1543b154df75fa6850a733.png\" alt=\"cd90ec18cb1543b154df75fa6850a733\" width=\"704\" height=\"254\" \/><\/a><\/p>\n<table style=\"display: table; text-align: left; overflow: auto; border-collapse: collapse; margin: 1.4em auto; max-width: 100%; table-layout: fixed; overflow-wrap: break-word; word-break: break-all;\" width=\"800\">\n<thead>\n<tr>\n<th style=\"border: 1px solid #d9dfe4; padding: 9px 12px; font-size: 0.75em; line-height: 22px; vertical-align: top; text-align: center; font-weight: bold; color: #4870ac; background: #f7f7f7;\">\u63a5\u53e3<\/th>\n<th style=\"border: 1px solid #d9dfe4; padding: 9px 12px; font-size: 0.75em; line-height: 22px; vertical-align: top; text-align: center; font-weight: bold; color: #4870ac; background: #f7f7f7;\">\u8f93\u5165<\/th>\n<th style=\"border: 1px solid #d9dfe4; padding: 9px 12px; font-size: 0.75em; line-height: 22px; vertical-align: top; text-align: center; font-weight: bold; color: #4870ac; background: #f7f7f7;\">\u8f93\u51fa<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"border: 1px solid #d9dfe4; padding: 9px 12px; font-size: 0.75em; line-height: 22px; vertical-align: top;\"><code style=\"font-family: Menlo, Monaco, Consolas, 'Liberation Mono', 'Roboto Mono', 'Courier New', 'Microsoft YaHei', monospace; color: #4870ac; font-size: 0.9em; font-weight: normal; overflow-wrap: break-word; padding: 2px 4px; border-radius: 3px; margin: 2px; background-color: #f6f8fa; word-break: break-all;\">Function&lt;T,R&gt;<\/code><\/td>\n<td style=\"border: 1px solid #d9dfe4; padding: 9px 12px; font-size: 0.75em; line-height: 22px; vertical-align: top;\">T<\/td>\n<td style=\"border: 1px solid #d9dfe4; padding: 9px 12px; font-size: 0.75em; line-height: 22px; vertical-align: top;\">R<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #d9dfe4; padding: 9px 12px; font-size: 0.75em; line-height: 22px; vertical-align: top;\"><code style=\"font-family: Menlo, Monaco, Consolas, 'Liberation Mono', 'Roboto Mono', 'Courier New', 'Microsoft YaHei', monospace; color: #4870ac; font-size: 0.9em; font-weight: normal; overflow-wrap: break-word; padding: 2px 4px; border-radius: 3px; margin: 2px; background-color: #f6f8fa; word-break: break-all;\">Predicate&lt;T&gt;<\/code><\/td>\n<td style=\"border: 1px solid #d9dfe4; padding: 9px 12px; font-size: 0.75em; line-height: 22px; vertical-align: top;\">T<\/td>\n<td style=\"border: 1px solid #d9dfe4; padding: 9px 12px; font-size: 0.75em; line-height: 22px; vertical-align: top;\">boolean<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #d9dfe4; padding: 9px 12px; font-size: 0.75em; line-height: 22px; vertical-align: top;\"><code style=\"font-family: Menlo, Monaco, Consolas, 'Liberation Mono', 'Roboto Mono', 'Courier New', 'Microsoft YaHei', monospace; color: #4870ac; font-size: 0.9em; font-weight: normal; overflow-wrap: break-word; padding: 2px 4px; border-radius: 3px; margin: 2px; background-color: #f6f8fa; word-break: break-all;\">Consumer&lt;T&gt;<\/code><\/td>\n<td style=\"border: 1px solid #d9dfe4; padding: 9px 12px; font-size: 0.75em; line-height: 22px; vertical-align: top;\">T<\/td>\n<td style=\"border: 1px solid #d9dfe4; padding: 9px 12px; font-size: 0.75em; line-height: 22px; vertical-align: top;\">\u65e0<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #d9dfe4; padding: 9px 12px; font-size: 0.75em; line-height: 22px; vertical-align: top;\"><code style=\"font-family: Menlo, Monaco, Consolas, 'Liberation Mono', 'Roboto Mono', 'Courier New', 'Microsoft YaHei', monospace; color: #4870ac; font-size: 0.9em; font-weight: normal; overflow-wrap: break-word; padding: 2px 4px; border-radius: 3px; margin: 2px; background-color: #f6f8fa; word-break: break-all;\">Supplier&lt;T&gt;<\/code><\/td>\n<td style=\"border: 1px solid #d9dfe4; padding: 9px 12px; font-size: 0.75em; line-height: 22px; vertical-align: top;\">\u65e0<\/td>\n<td style=\"border: 1px solid #d9dfe4; padding: 9px 12px; font-size: 0.75em; line-height: 22px; vertical-align: top;\">T<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #d9dfe4; padding: 9px 12px; font-size: 0.75em; line-height: 22px; vertical-align: top;\"><code style=\"font-family: Menlo, Monaco, Consolas, 'Liberation Mono', 'Roboto Mono', 'Courier New', 'Microsoft YaHei', monospace; color: #4870ac; font-size: 0.9em; font-weight: normal; overflow-wrap: break-word; padding: 2px 4px; border-radius: 3px; margin: 2px; background-color: #f6f8fa; word-break: break-all;\">BinaryOperator&lt;T&gt;<\/code><\/td>\n<td style=\"border: 1px solid #d9dfe4; padding: 9px 12px; font-size: 0.75em; line-height: 22px; vertical-align: top;\">\u4e24\u4e2a T<\/td>\n<td style=\"border: 1px solid #d9dfe4; padding: 9px 12px; font-size: 0.75em; line-height: 22px; vertical-align: top;\">\u4e00\u4e2a T\uff08\u9002\u5408 reduce\uff09<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p style=\"margin: 1em 0px;\">\u53c2\u8003\uff1a<a class=\"external\" href=\"http:\/\/winterbe.com\/posts\/2014\/03\/16\/java-8-tutorial\/\" target=\"_blank\" rel=\"nofollow\">winterbe<\/a>\uff1b\u8bd1\u6587 <a href=\"http:\/\/www.importnew.com\/10360.html\">http:\/\/www.importnew.com\/10360.html<\/a>\uff1b<a href=\"http:\/\/biezhi.me\/2017\/07\/17\/keep-up-with-java8-lambda.html\">\u8ddf\u4e0a Java 8<\/a>\uff1b<a href=\"http:\/\/www.importnew.com\/16436.html\">10 \u4e2a\u793a\u4f8b<\/a>\uff1b<a href=\"https:\/\/www.jianshu.com\/p\/82ed16613072\">Optional<\/a>\uff1b<a href=\"http:\/\/www.importnew.com\/6675.html\">Optional \u6df1\u5ea6\u89e3\u6790<\/a>\u3002<\/p>\n<blockquote style=\"display: block; font-size: 0.9em; border-left: 3px solid #4870ac; padding: 0.5em 1em; margin: 0px; background: #f6f8fa; color: #40464f;\">\n<p style=\"margin: 1em 0px;\"><strong style=\"color: #4870ac;\">\u4e00\u53e5\u8bdd\u603b\u7ed3\uff1alambda \u5fc5\u987b\u843d\u5728\u51fd\u6570\u5f0f\u63a5\u53e3\u4e0a\uff1b\u65b9\u6cd5\u5f15\u7528\u7528 :: \u5c11\u5199\u6837\u677f\uff1b\u6355\u83b7\u7684\u5c40\u90e8\u53d8\u91cf\u8981\u662f effectively final\uff1b\u65e5\u5e38\u4f18\u5148\u7528 JDK \u81ea\u5e26\u7684 Function \/ Predicate \/ Consumer \/ Supplier\u3002<\/strong><\/p>\n<\/blockquote>\n<\/section>\n","protected":false},"excerpt":{"rendered":"<p>Java 8 \u628a\u4e00\u5927\u5757\u65b0\u80fd\u529b\u644a\u5728\u4e00\u5f20\u56fe\u4e0a\uff1aLambda\u3001\u6d41\u3001\u65b0\u65e5\u671f\u3001Optional\u3001CompletableF [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[103],"tags":[97],"_links":{"self":[{"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=\/wp\/v2\/posts\/2092"}],"collection":[{"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2092"}],"version-history":[{"count":3,"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=\/wp\/v2\/posts\/2092\/revisions"}],"predecessor-version":[{"id":2240,"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=\/wp\/v2\/posts\/2092\/revisions\/2240"}],"wp:attachment":[{"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2092"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2092"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ai.zhousir.top\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2092"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}