【Java】多线程

时间:2023-03-09 22:15:59
【Java】多线程
class RunnableDemo implements Runnable {
private Thread t;
private String threadName; RunnableDemo( String name) {
threadName = name;
System.out.println("Creating " + threadName );
} public void run() {
System.out.println("Running " + threadName );
try {
for(int i = 4; i > 0; i--) {
System.out.println("Thread: " + threadName + ", " + i);
// 让线程睡眠一会
Thread.sleep(50);
}
}catch (InterruptedException e) {
System.out.println("Thread " + threadName + " interrupted.");
}
System.out.println("Thread " + threadName + " exiting.");
} public void start () {
System.out.println("Starting " + threadName );
if (t == null) {
t = new Thread (this, threadName);
t.start ();
}
}
} public class test { public static void main(String args[]) {
RunnableDemo R1 = new RunnableDemo( "Thread-1");
R1.start(); RunnableDemo R2 = new RunnableDemo( "Thread-2");
R2.start();
}
}