这段代码错在哪里

[anneyang]

import java.lang.*;

public class Barrier{
private int threads2Wait4;
private InterruptedException iex;

public Barrier(int nThreads)
{
threads2Wait4 = nThreads;
}

public synchronized int waitForRest() throw InterruptedException
{
int threadNum = --threads2Wait4;

if(iex!= null) throw iex;
if(thread2Wait4<=0){
notifyAll();
return threadNum;
}
while(threads2Wait4 > 0){
if(iex!=null) throw iex;
try{
wait();
}catch(InterruptedException ex){
iex = ex;
notifyAll();
}
}
return threadNum;
}

public synchronized void freeAll()
{
iex = new InterruptedException("Barrier Released by freeAll");
notifyAll();
}
}

[neuboy]

public synchronized int waitForRest() throw InterruptedException

问题出在 throw 想抛出异常正确写法为 throws

[lydong]

//我kao,伙计，太离谱了吧。
package test;
import java.lang.*;

public class Barrier{
private int threads2Wait4;
private InterruptedException iex;

public Barrier(int nThreads)
{
threads2Wait4 = nThreads;
}

// public synchronized int waitForRest() throw InterruptedException
public synchronized int waitForRest() throws InterruptedException
{
int threadNum = --threads2Wait4;

if(iex!= null) throw iex;
// if(thread2Wait4<=0){
if(threads2Wait4<=0){
notifyAll();
return threadNum;
}
while(threads2Wait4 > 0){
if(iex!=null) throw iex;
try{
wait();
}catch(InterruptedException ex){
iex = ex;
notifyAll();
}
}
return threadNum;
}

public synchronized void freeAll()
{
iex = new InterruptedException("Barrier Released by freeAll");
notifyAll();
}
}

[whyxx]

来晚了,up一下

[zhonghua2003]

搞定了。

[zhirenshao]

throw 应该改为 throws

[limd]

public synchronized int waitForRest() throws InterruptedException ///这句改一点
{

[Wnyu]

昏，基本间题。