\u5927\u591a\u6570\u60c5\u51b5\uff0c\u901a\u8fc7\u5b9e\u4f8b\u5316\u4e00\u4e2aThread\u5bf9\u8c61\u6765\u521b\u5efa\u4e00\u4e2a\u7ebf\u7a0b\u3002
\nJava\u5b9a\u4e49\u4e86\u4e24\u79cd\u65b9\u5f0f\u521b\u5efa\u4e00\u4e2a\u7ebf\u7a0b\uff1a
\n<\/p>\n
\u5b9e\u73b0Runnable \u63a5\u53e3\uff1b
\n\u53ef\u4ee5\u7ee7\u627fThread\u7c7b\u3002<\/p>\n
\u4e0b\u9762\u7684\u4e24\u5c0f\u8282\u4f9d\u6b21\u4ecb\u7ecd\u4e86\u6bcf\u4e00\u79cd\u65b9\u5f0f\u3002
\n\u5b9e\u73b0Runnable\u63a5\u53e3<\/p>\n
\u521b\u5efa\u7ebf\u7a0b\u7684\u6700\u7b80\u5355\u7684\u65b9\u6cd5\u5c31\u662f\u521b\u5efa\u4e00\u4e2a\u5b9e\u73b0Runnable \u63a5\u53e3\u7684\u7c7b\u3002Runnable\u62bd\u8c61\u4e86\u4e00\u4e2a\u6267\u884c\u4ee3\u7801\u5355\u5143\u3002\u4f60\u53ef\u4ee5\u901a\u8fc7\u5b9e\u73b0Runnable\u63a5\u53e3\u7684\u65b9\u6cd5\u521b\u5efa\u6bcf\u4e00\u4e2a\u5bf9\u8c61\u7684\u7ebf\u7a0b\u3002\u4e3a\u5b9e\u73b0Runnable \u63a5\u53e3\uff0c\u4e00\u4e2a\u7c7b\u4ec5\u9700\u5b9e\u73b0\u4e00\u4e2arun()\u7684\u7b80\u5355\u65b9\u6cd5\uff0c\u8be5\u65b9\u6cd5\u58f0\u660e\u5982\u4e0b\uff1a
\n\u00a0\u00a0\u00a0 public void run( )
\n\u5728run()\u4e2d\u53ef\u4ee5\u5b9a\u4e49\u4ee3\u7801\u6765\u6784\u5efa\u65b0\u7684\u7ebf\u7a0b\u3002\u7406\u89e3\u4e0b\u9762\u5185\u5bb9\u662f\u81f3\u5173\u91cd\u8981\u7684\uff1arun()\u65b9\u6cd5\u80fd\u591f\u50cf\u4e3b\u7ebf\u7a0b\u90a3\u6837\u8c03\u7528\u5176\u4ed6\u65b9\u6cd5\uff0c\u5f15\u7528\u5176\u4ed6\u7c7b\uff0c\u58f0\u660e\u53d8\u91cf\u3002\u4ec5\u6709\u7684\u4e0d\u540c\u662frun()\u5728\u7a0b\u5e8f\u4e2d\u786e\u7acb\u53e6\u4e00\u4e2a\u5e76\u53d1\u7684\u7ebf\u7a0b\u6267\u884c\u5165\u53e3\u3002\u5f53run()\u8fd4\u56de\u65f6\uff0c\u8be5\u7ebf\u7a0b\u7ed3\u675f\u3002<\/p>\n
\u5728\u4f60\u5df2\u7ecf\u521b\u5efa\u4e86\u5b9e\u73b0Runnable\u63a5\u53e3\u7684\u7c7b\u4ee5\u540e\uff0c\u4f60\u8981\u5728\u7c7b\u5185\u90e8\u5b9e\u4f8b\u5316\u4e00\u4e2aThread\u7c7b\u7684\u5bf9\u8c61\u3002Thread \u7c7b\u5b9a\u4e49\u4e86\u597d\u51e0\u79cd\u6784\u9020\u51fd\u6570\u3002\u6211\u4eec\u4f1a\u7528\u5230\u7684\u5982\u4e0b\uff1a
\n\u00a0\u00a0\u00a0 Thread(Runnable threadOb, String threadName)
\n\u8be5\u6784\u9020\u51fd\u6570\u4e2d\uff0cthreadOb\u662f\u4e00\u4e2a\u5b9e\u73b0Runnable\u63a5\u53e3\u7c7b\u7684\u5b9e\u4f8b\u3002\u8fd9\u5b9a\u4e49\u4e86\u7ebf\u7a0b\u6267\u884c\u7684\u8d77\u70b9\u3002\u65b0\u7ebf\u7a0b\u7684\u540d\u79f0\u7531threadName\u5b9a\u4e49\u3002<\/p>\n
\u5efa\u7acb\u65b0\u7684\u7ebf\u7a0b\u540e\uff0c\u5b83\u5e76\u4e0d\u8fd0\u884c\u76f4\u5230\u8c03\u7528\u4e86\u5b83\u7684start()\u65b9\u6cd5\uff0c\u8be5\u65b9\u6cd5\u5728Thread \u7c7b\u4e2d\u5b9a\u4e49\u3002\u672c\u8d28\u4e0a\uff0cstart() \u6267\u884c\u7684\u662f\u4e00\u4e2a\u5bf9run()\u7684\u8c03\u7528\u3002 Start\uff08\uff09\u65b9\u6cd5\u58f0\u660e\u5982\u4e0b\uff1a
\n\u00a0\u00a0\u00a0 void start( )<\/p>\n
\u4e0b\u9762\u7684\u4f8b\u5b50\u662f\u521b\u5efa\u4e00\u4e2a\u65b0\u7684\u7ebf\u7a0b\u5e76\u542f\u52a8\u5b83\u8fd0\u884c\uff1a
\n[java]\/\/ Create a second thread.
\nclass NewThread implements Runnable {
\n\u00a0\u00a0\u00a0 Thread t;
\n\u00a0\u00a0\u00a0 NewThread() {
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \/\/ Create a new, second thread
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 t = new Thread(this, "Demo Thread");
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 System.out.println("Child thread: " + t);
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 t.start(); \/\/ Start the thread
\n\u00a0\u00a0\u00a0 }<\/p>\n
\u00a0\u00a0\u00a0 \/\/ This is the entry point for the second thread.
\n\u00a0\u00a0\u00a0 public void run() {
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 try {
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 for(int i = 5; i > 0; i–) {
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 System.out.println("Child Thread: " + i);
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Thread.sleep(500);
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 }
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 } catch (InterruptedException e) {
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 System.out.println("Child interrupted.");
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 }
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 System.out.println("Exiting child thread.");
\n\u00a0\u00a0\u00a0 }
\n}<\/p>\n
class ThreadDemo {
\n\u00a0\u00a0\u00a0 public static void main(String args[]) {
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 new NewThread(); \/\/ create a new thread
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 try {
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 for(int i = 5; i > 0; i–) {
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 System.out.println("Main Thread: " + i);
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Thread.sleep(1000);
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 }
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 } catch (InterruptedException e) {
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 System.out.println("Main thread interrupted.");
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 }
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 System.out.println("Main thread exiting.");
\n\u00a0\u00a0\u00a0 }
\n}[\/java]
\n\u5728NewThread \u6784\u9020\u51fd\u6570\u4e2d\uff0c\u65b0\u7684Thread\u5bf9\u8c61\u7531\u4e0b\u9762\u7684\u8bed\u53e5\u521b\u5efa\uff1a:
\n\u00a0\u00a0\u00a0 t = new Thread(this, “Demo Thread”);
\n\u901a\u8fc7\u524d\u9762\u7684\u8bed\u53e5this \u8868\u660e\u5728this\u5bf9\u8c61\u4e2d\u4f60\u60f3\u8981\u65b0\u7684\u7ebf\u7a0b\u8c03\u7528run()\u65b9\u6cd5\u3002\u7136\u540e\uff0cstart() \u88ab\u8c03\u7528\uff0c\u4ee5run()\u65b9\u6cd5\u4e3a\u5f00\u59cb\u542f\u52a8\u4e86\u7ebf\u7a0b\u7684\u6267\u884c\u3002\u8fd9\u4f7f\u5b50\u7ebf\u7a0bfor \u5faa\u73af\u5f00\u59cb\u6267\u884c\u3002\u8c03\u7528start()\u4e4b\u540e\uff0cNewThread \u7684\u6784\u9020\u51fd\u6570\u8fd4\u56de\u5230main()\u3002\u5f53\u4e3b\u7ebf\u7a0b\u88ab\u6062\u590d\uff0c\u5b83\u5230\u8fbefor \u5faa\u73af\u3002\u4e24\u4e2a\u7ebf\u7a0b\u7ee7\u7eed\u8fd0\u884c\uff0c\u5171\u4eabCPU\uff0c\u76f4\u5230\u5b83\u4eec\u7684\u5faa\u73af\u7ed3\u675f\u3002\u8be5\u7a0b\u5e8f\u7684\u8f93\u51fa\u5982\u4e0b\uff1a
\nChild thread: Thread[Demo Thread,5,main]
\nMain Thread: 5
\nChild Thread: 5
\nChild Thread: 4
\nMain Thread: 4
\nChild Thread: 3
\nChild Thread: 2
\nMain Thread: 3
\nChild Thread: 1
\nExiting child thread.
\nMain Thread: 2
\nMain Thread: 1
\nMain thread exiting.<\/p>\n
\u5982\u524d\u9762\u63d0\u5230\u7684\uff0c\u5728\u591a\u7ebf\u7a0b\u7a0b\u5e8f\u4e2d\uff0c\u901a\u5e38\u4e3b\u7ebf\u7a0b\u5fc5\u987b\u662f\u7ed3\u675f\u8fd0\u884c\u7684\u6700\u540e\u4e00\u4e2a\u7ebf\u7a0b\u3002\u5b9e\u9645\u4e0a\uff0c\u4e00\u4e9b\u8001\u7684JVM\uff0c\u5982\u679c\u4e3b\u7ebf\u7a0b\u5148\u4e8e\u5b50\u7ebf\u7a0b\u7ed3\u675f\uff0cJava\u7684\u8fd0\u884c\u65f6\u95f4\u7cfb\u7edf\u5c31\u53ef\u80fd\u201c\u6302\u8d77\u201d\u3002\u524d\u8ff0\u7a0b\u5e8f\u4fdd\u8bc1\u4e86\u4e3b\u7ebf\u7a0b\u6700\u540e\u7ed3\u675f\uff0c\u56e0\u4e3a\u4e3b\u7ebf\u7a0b\u6c89\u7761\u5468\u671f1000\u6beb\u79d2\uff0c\u800c\u5b50\u7ebf\u7a0b\u4ec5\u4e3a500\u6beb\u79d2\u3002\u8fd9\u5c31\u4f7f\u5b50\u7ebf\u7a0b\u5728\u4e3b\u7ebf\u7a0b\u7ed3\u675f\u4e4b\u524d\u5148\u7ed3\u675f\u3002\u7b80\u800c\u8a00\u4e4b\uff0c\u4f60\u5c06\u770b\u5230\u7b49\u5f85\u7ebf\u7a0b\u7ed3\u675f\u7684\u66f4\u597d\u9014\u5f84\u3002
\n\u6269\u5c55Thread<\/p>\n
\u521b\u5efa\u7ebf\u7a0b\u7684\u53e6\u4e00\u4e2a\u9014\u5f84\u662f\u521b\u5efa\u4e00\u4e2a\u65b0\u7c7b\u6765\u6269\u5c55Thread\u7c7b\uff0c\u7136\u540e\u521b\u5efa\u8be5\u7c7b\u7684\u5b9e\u4f8b\u3002\u5f53\u4e00\u4e2a\u7c7b\u7ee7\u627fThread\u65f6\uff0c\u5b83\u5fc5\u987b\u91cd\u8f7drun()\u65b9\u6cd5\uff0c\u8fd9\u4e2arun()\u65b9\u6cd5\u662f\u65b0\u7ebf\u7a0b\u7684\u5165\u53e3\u3002\u5b83\u4e5f\u5fc5\u987b\u8c03\u7528start()\u65b9\u6cd5\u53bb\u542f\u52a8\u65b0\u7ebf\u7a0b\u6267\u884c\u3002\u4e0b\u9762\u7528\u6269\u5c55thread\u7c7b\u91cd\u5199\u524d\u9762\u7684\u7a0b\u5e8f\uff1a
\n[java]\/\/ Create a second thread by extending Thread
\nclass NewThread extends Thread {
\n\u00a0\u00a0\u00a0 NewThread() {
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \/\/ Create a new, second thread
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 super("Demo Thread");
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 System.out.println("Child thread: " + this);
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 start(); \/\/ Start the thread
\n\u00a0\u00a0\u00a0 }<\/p>\n
\u00a0\u00a0\u00a0 \/\/ This is the entry point for the second thread.
\n\u00a0\u00a0\u00a0 public void run() {
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 try {
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 for(int i = 5; i > 0; i–) {
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 System.out.println("Child Thread: " + i);
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Thread.sleep(500);
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 }
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 } catch (InterruptedException e) {
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 System.out.println("Child interrupted.");
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 }
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 System.out.println("Exiting child thread.");
\n\u00a0\u00a0\u00a0 }
\n}<\/p>\n
class ExtendThread {
\n\u00a0\u00a0\u00a0 public static void main(String args[]) {
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 new NewThread(); \/\/ create a new thread
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 try {
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 for(int i = 5; i > 0; i–) {
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 System.out.println("Main Thread: " + i);
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Thread.sleep(1000);
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 }
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 } catch (InterruptedException e) {
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 System.out.println("Main thread interrupted.");
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 }
\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 System.out.println("Main thread exiting.");
\n\u00a0\u00a0\u00a0 }
\n}
\n[\/java]
\n\u8be5\u7a0b\u5e8f\u751f\u6210\u548c\u524d\u8ff0\u7248\u672c\u76f8\u540c\u7684\u8f93\u51fa\u3002\u5b50\u7ebf\u7a0b\u662f\u7531\u5b9e\u4f8b\u5316NewThread\u5bf9\u8c61\u751f\u6210\u7684\uff0c\u8be5\u5bf9\u8c61\u4eceThread\u7c7b\u6d3e\u751f\u3002\u6ce8\u610fNewThread \u4e2dsuper()\u7684\u8c03\u7528\u3002\u8be5\u65b9\u6cd5\u8c03\u7528\u4e86\u4e0b\u5217\u5f62\u5f0f\u7684Thread\u6784\u9020\u51fd\u6570\uff1a
\n\u00a0\u00a0\u00a0 public Thread(String threadName)
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\n\u9009\u62e9\u5408\u9002\u65b9\u6cd5<\/p>\n
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