synchronized(this) vs synchronized(Class)
2486 ワード
package com.yan.threads;
public class TestThread {
public static void main(String[] args) {
// ：this,class //
/*MyThread myThread = new MyThread();
Thread t1 = new Thread(myThread, "t1");
t1.start();
processThread(myThread);*/
// :class,class // ，
/*MyThread myThread = new MyThread();
Thread t1 = new Thread(myThread, "t1");
t1.start();
processThread(myThread);*/
// :this,this // ，
MyThread myThread = new MyThread();
Thread t1 = new Thread(myThread, "t1");
t1.start();
processThread(myThread);
// :this,this //
/*MyThread myThread = new MyThread();
MyThread myThread2 = new MyThread();
Thread t1 = new Thread(myThread, "t1");
t1.start();
processThread(myThread2);*/
// :class,this //
/*MyThread myThread = new MyThread();
MyThread myThread2 = new MyThread();
Thread t1 = new Thread(myThread, "t1");
t1.start();
processThread(myThread2);*/
// :class,class //
/*MyThread myThread = new MyThread();
MyThread myThread2 = new MyThread();
Thread t1 = new Thread(myThread, "t1");
t1.start();
processThread(myThread2);*/
}
public static void processThread(MyThread thread) {
thread.run2();
}
}
class MyThread implements Runnable {
@Override
public void run() {
synchronized(MyThread.class) {
try {
Thread.sleep(1000);
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
for(int i=0;i<50;i++)
System.out.println("Thread "+Thread.currentThread().getName()+" "+i+" is running");
}
}
public void run2() {
synchronized(MyThread.class) {
try {
Thread.sleep(1000);
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
for(int i=0;i<50;i++)
System.out.println("Thread "+Thread.currentThread().getName()+" "+i+" is running in run2");
}
}
}