class SubThread extends Thread
{
public SubThread(String name)
{
super(name);
}
public void run()
{
for(int i = 0; i < 3; i++)
{
System.out.println(Thread.getcurrentThread().getName() + "--" + i);
}
try {Thread.sleep(500);}
catch(Exception e) {}
}
}
public class MainThread
{
public static void main(String[] args)
{
for(int i=0; i < 3; i++)
{
SubThread s=new SubThread();
s.start();
}
}
}


不知道为什么编译不出来 为什么错？

System.out.println(Thread.getcurrentThread().getName() + "--" + i);

那么这句错在哪呢？

要是想把他作成同步线程，sychronized怎么放置呢？

我是放在RUN方法前面 使得RUN方法同步，但不起作用啊！？？
class SubThread extends Thread
{
public SubThread(String name)
{
super(name);
}
public synchronized void run()
{
for(int i = 0; i < 3; i++)
{
System.out.println(Thread.currentThread().getName() + "--" + i);
}

}
}
public class MainThread
{
public static void main(String[] args)
{
SubThread s1=new SubThread("hehe");
SubThread s2=new SubThread("lala");
s1.start();
s2.start();


}
}

我想达到的效果是
hehe--0
lala--1
hehe--2

hehe与lala调用RUN方法是同步的，但结果是
hehe--0
hehe--1
hehe--2
lala--0
lala--1
lala--2
Press any key to continue...
错在哪呢？
谢谢千里冰峰

正确的是：
class SubThread extends Thread
{
static int i;
public SubThread(String name)
{
super(name);
}
public synchronized void run()
{
for(; i < 30; i++)
{
System.out.println(Thread.currentThread().getName() + "--" + i);
}

}
}
public class MainThread
{
public static void main(String[] args)
{
SubThread s1=new SubThread("hehe");
SubThread s2=new SubThread("lala");
s1.start();
s2.start();

}
}