public class JoinTest2 { 
// 现在有T1、T2、T3三个线程,如何保证T2在T1执行完后执行,T3在T2执行完后执行 
public static void main(String[] args) { 
final Thread t1 = new Thread(new Runnable() { 
 
@Override 
public void run() { 
System.out.println("t1 run"); 
 
} 
}); 
 
final Thread t2 = new Thread(new Runnable() { 
 
@Override 
public void run() { 
 
try { 
// 引用T1线程,等待T1线程执行完 
t1.join(); 
} catch (InterruptedException e) { 
e.printStackTrace(); 
} 
System.out.println("T2 run"); 
} 
 
}); 
 
final Thread t3 = new Thread(new Runnable() { 
 
@Override 
public void run() { 
// 引用t2线程,等待t2线程执行完成 
try { 
t2.join(); 
} catch (InterruptedException e) { 
e.printStackTrace(); 
} 
System.out.println("t3 run"); 
} 
 
}); 
t1.start(); 
t2.start(); 
t3.start(); 
 
} 
 
 
该你找到的 参考一下 |