不能抛出RuntimeException类型的异常
public class RuntimeException {

private static void throwit() throws Exception
{
System.out.print("throwit ");
//throw new Exception();
throw new RuntimeException(); /* eclipse中提示这句代码有误，给出的错误提示是“No exception of type RuntimeException can be thrown; an exception type must be a subclass of Throwable” */
}

public static void main(String[] args) {

try
{
System.out.print("try ");
throwit();
}
catch(Exception e)
{
System.out.print("catch ");
}
finally
{
System.out.print("finally ");
}
System.out.println("last");
}
}

上述程序中，代码 throw new RuntimeException(); 在 eclipse中提示这句代码有误，给出的错误提示是“No exception of type RuntimeException can be thrown; an exception type must be a subclass of Throwable” 
网上查看到可以抛出RuntimeException类型的异常，到我这怎么就出错了，求高手解答，谢谢！

------解决方案--------------------
方法声明中throws出的是checked exception。

RuntimeException及其子类是non-checked exception。

 private static void throwit() throws Exception
=>
 private static void throwit()
去掉这个
------解决方案--------------------
LZ啊，你自己的类名就叫RuntimeException，你这个类又不是Throwable的子类，怎么作为异常抛出

你要不肯改名，就试试这样：
new java.lang.RuntimeException()