嵌套的Try-Catch块--------异常处理(3)

当有一个Try块没有一个对应的异常可处理，则其父类的异常处理机制去处理。如果父类的异常处理机制不能处理，则java run-time system将会抛出一个异常。

例子：

class Nest{
   public static void main(String args[]){
	 //Parent try block
     try{
    	//Child try block1
         try{
            System.out.println("Inside block1");
            int b =45/0;
            System.out.println(b);
         }
         catch(ArithmeticException e1){
            System.out.println("Exception: e1");
         }
         //Child try block2
         try{
            System.out.println("Inside block2");
            int b =45/0;
            System.out.println(b);
         }
         catch(ArrayIndexOutOfBoundsException e2){
            System.out.println("Exception: e2");
         }
        System.out.println("Just other statement");
    }
    catch(ArithmeticException e3){
    	 System.out.println("Arithmetic Exception");
         System.out.println("Inside parent try catch block");
    }
    catch(ArrayIndexOutOfBoundsException e4){
    	System.out.println("ArrayIndexOutOfBoundsException");
         System.out.println("Inside parent try catch block");
    }
    catch(Exception e5){
    	System.out.println("Exception");
         System.out.println("Inside parent try catch block");
     }
     System.out.println("Next statement..");
  }
}
输出：

Inside block1
Exception: e1
Inside block2
Arithmetic Exception
Inside parent try catch block
Next statement..