Java/线程同步+创建+顺序输出.txt

1.使用synchronized关键字同步线程
package step2;

public class Task {

	public static void main(String[] args) {

		final insertData insert = new insertData();

		for (int i = 0; i < 3; i++) {
			new Thread(new Runnable() {
				public void run() {
					insert.insert(Thread.currentThread());
				}
			}).start();
		}

	}
}

class insertData {

	public static int num = 0;

	/********* Begin *********/
	public synchronized void insert(Thread thread) {

		for (int i = 0; i <= 5; i++) {
			num++;
			System.out.println(num);
		}
	}

	/********* End *********/
}
2.创建线程
package step1;

//请在此添加实现代码
/********** Begin **********/
public class ThreadClassOne  extends Thread   {
    public void run(){
        for(int i=1;i<10;i+=2){
            System.out.print(i+" ");
        }
    }
}
class ThreadClassTwo implements Runnable{
    public void run(){
        for(int i=0;i<=10;i+=2){
            System.out.print(i+" ");
        }
    }
    public void start(){

    }
}


/********** End **********/

3.顺序输出
package step1;

public class Task {
	public static void main(String[] args) throws Exception {
		/********* Begin *********/
		// 在这里创建线程， 开启线程

		Object a = new Object();
		Object b = new Object();
		Object c = new Object();
		// 在这里创建线程， 开启线程
		MyThread th1 = new MyThread("AA", a, c);
		MyThread th2 = new MyThread("BB", c, b);
		MyThread th3 = new MyThread("CC", b, a);

		th1.start();
		Thread.sleep(10);
		th2.start();
		Thread.sleep(10);
		th3.start();
		Thread.sleep(10);
		System.exit(0);

		/********* End *********/
	}
}

class MyThread extends Thread {
	/********* Begin *********/

	String threadName;
	Object a = null;
	Object b = null;

	public MyThread(String threadName, Object a, Object b) {
		super();
		this.threadName = threadName;
		this.a = a;
		this.b = b;
	}

	public synchronized void run() {

		int count = 5;
		while (count > 0) {
			synchronized (a) {
				synchronized (b) {
					System.out.println("Java Thread" + this.threadName);
					count--;
					b.notify();

				}
				try {
					a.wait();
				} catch (InterruptedException e) {
					// TODO 自动生成的 catch 块
					e.printStackTrace();
				}
			}
		}

	}
	/********* End *********/
}