Java多线程打印ABABABAB

思路：多线程打印AB，就需要两个线程类，一个线程负责打印一个，调用wait()和notify()方法去控制线程间的通信

package thread;

public class PrintAB {

//声明boolean变量用来控制打印

private boolean flag = false;

//打印A

public synchronized void printA(){
while(flag){
try {
wait();
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
Syste