UC知道关于java多线程的例子，恳请高手指点一下，谢谢！
来源：百度知道 编辑：UC知道 时间：2024/05/17 17:36:11
程序中建立mt1线程，还有mt2线程，我想让mt1建立之后进入休眠状态，而先执行mt2，可是还是先执行的mt1，这个是怎么回事？
public class MyThread extends Thread {
int num;
char c;
MyThread() {
num = 1000;
c = 'd';
}
MyThread(int a, char b) {
num = a;
c = b;
}
public void run() {
System.out.println("num=" + num + " c=" + c);
}
public static void main(String[] args) {
MyThread mt1 = new MyThread();
try {
mt1.start();
mt1.sleep(7000);
} catch (Exception e) {
System.out.println("错误!");
}
MyThread mt2 = new MyThread(4066, 'e');
mt2.start();
}
}
public class MyThread extends Thread {
int num;
char c;
MyThread() {
num = 1000;
c = 'd';
}
MyThread(int a, char b) {
num = a;
c = b;
}
public void run() {
System.out.println("num=" + num + " c=" + c);
}
public static void main(String[] args) {
MyThread mt1 = new MyThread();
try {
mt1.start();
mt1.sleep(7000);
} catch (Exception e) {
System.out.println("错误!");
}
MyThread mt2 = new MyThread(4066, 'e');
mt2.start();
}
}
您的程序有点问题!
我帮您改正了,已经测试通过!仅供您参考!
public class MyThread extends Thread {
int num;
char c;
MyThread()
{
num = 1000;
c = 'd';
}
MyThread(int a, char b) {
num = a;
c = b;
}
public void run() {
try {
Thread.sleep(7000);
}
catch (Exception e)
{
System.out.println("错误!");
}
System.out.println("num=" + num + " c=" + c);
}
public static void main(String[] args)
{
MyThread mt2 = new MyThread(4066, 'e');
mt2.start();
MyThread mt1 = new MyThread();
mt1.start();
}
}
MyThread mt1 = new MyThread();
这句话就已经建立了mt1线程，而mt1.start是把线程mt1起来了
要达到目的，可以这样m2.start();《——起m2线程
m2.join();《-主线程等待m2执行完
m1.start();《-起m1线程