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线程t1|线程t1,t2,t3 分别输出A,B,C 要求循环输出ABC 10次
Bt2t3分别输出A线程t1
public class DemoTest{
private static String[] flag = {"A"};
static class AThread extends Thread{
@Override
public void run(){
int i=0;
while (i<10){
synchronized (flag){
if(flag[0].equals("A")){
System.out.print("A");
flag[0]="B";
i++;
}
flag.notify();
try {
flag.wait();
} catch (InterruptedException e) {
e.printStackTrace();
}
}
}
}
}static class BThread extends Thread{
@Override
public void run(){
int i=0;
while (i<10){
synchronized (flag){
if(flag[0].equals("B")){
System.out.print("B");
flag[0]="C";
i++;
}
flag.notify();
try {
flag.wait();
} catch (InterruptedException e) {
e.printStackTrace();
}
}
}
}
}static class CThread extends Thread{
@Override
public void run(){
int i=0;
while (i<10){
synchronized (flag){
if(flag[0].equals("C")){
System.out.println("C");
flag[0]="A";
i++;
}
flag.notify();
try {
flag.wait();
} catch (InterruptedException e) {
e.printStackTrace();
}
}
}
}
}public static void main(String[] args) {
AThread t1 = new AThread();
BThread t2 = new BThread();
CThread t3 = new CThread();
t1.start();
t2.start();
t3.start();
}
}
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