 什麼是執行緒
 執行緒的基本操作
 守護執行緒
 執行緒優先順序
 基本的執行緒同步操作

1. 什麼是執行緒

   

2. 執行緒的基本操作

   

   

3. 執行緒中斷

   	public static native void sleep(long millis) throws InterruptedException
   	public void run(){ while(true){
   	  } }
   	if(Thread.currentThread().isInterrupted()){ System.out.println("Interruted!");
   	break; }
   	try {
   	Thread.sleep(2000);
   	} catch (InterruptedException e) {
   	System.out.println("Interruted When Sleep"); //設定中斷狀態，丟擲異常後會清除中斷標記位 Thread.currentThread().interrupt();
   	} Thread.yield();
    
   

   

   

4. 守護執行緒

   

5. 執行緒優先順序

   

6. 執行緒同步

   

   	public class ThreadTest {
   
   		public static Object object = new Object();
   
   		public static class T2 extends Thread {
   			public void run() {
   				synchronized (object) {
   					System.out.println(System.currentTimeMillis() + ":T2 start! notify one thread");
   					object.notify();
   					System.out.println(System.currentTimeMillis() + ":T2 end!");
   					try {
   						Thread.sleep(2000);
   					} catch (InterruptedException e) {
   					}
   				}
   			}
   		}
   
   		public static class T1 extends Thread {
   			public void run() {
   				synchronized (object) {
   					System.out.println(System.currentTimeMillis() + ":T1 start! ");
   					try {
   						System.out.println(System.currentTimeMillis() + ":T1 wait for object ");
   						object.wait();
   					} catch (InterruptedException e) {
   						e.printStackTrace();
   					}
   					System.out.println(System.currentTimeMillis() + ":T1 end!");
   				}
   			}
   		}
   
   		public static void main(String[] args) {
   			T1 t1 = new T1();
   			t1.start();
   			T2 t2 = new T2();
   			t2.start();
   		}
   
   	}