关于一个synchronized同步程序的疑惑??
mkasn 2007-02-01 12:04:14 public class TT implements Runnable {
int b = 100;
public synchronized void m1() throws Exception{
//Thread.sleep(2000);
b = 1000;
Thread.sleep(5000);
System.out.println("b = " + b);
}
public synchronized void m2() throws Exception {
Thread.sleep(2500);
b = 2000;
}
public void run() {
try {
m1();
} catch(Exception e) {
e.printStackTrace();
}
}
public static void main(String[] args) throws Exception {
TT tt = new TT();
Thread t = new Thread(tt);
t.start();
tt.m2();
System.out.println(tt.b);
}
}
程序如上,
输出为:
1000
b=1000
谁能可以说一下程序执行的流程.
另外synchronized所指定的方法应该是一个原子操作吗?