动手动脑 异常处理

动手动脑 1：

package cat;
public class catwho {

  public static void main(String[] args)
     {
         try
  {
              try
   {
                  throw new ArrayIndexOutOfBoundsException();
              }
              catch(ArrayIndexOutOfBoundsException e)
   {
                  System.out.println(  "ArrayIndexOutOfBoundsException" +  "/�ڲ�try-catch");
              }
 
             throw new ArithmeticException();
         }
         catch(ArithmeticException e)
  {
             System.out.println("����ArithmeticException");
         }
         catch(ArrayIndexOutOfBoundsException e)
  {
            System.out.println(  "ArrayIndexOutOfBoundsException" + "/���try-catch");
         }
     }
}

 动手动脑2：

 动手动脑 3：

package cat;
public class catwho {

 public static void main(String args[])
 {
       
  int result;
       
  try
  {
           
   System.out.println("in Level 1");

          
    try
   {
               
    System.out.println("in Level 2");
  // result=100/0;  //Level 2
              
     try
    {
                  
      System.out.println("in Level 3");
                     
      result=100/0;  //Level 3
               
    }
               
    catch (Exception e)
    {
                   
     System.out.println("Level 3:" + e.getClass().toString());
               
    }
               
               
    finally
    {
                   
     System.out.println("In Level 3 finally");
               
    }            
    // result=100/0;  //Level             

    }         
   catch (Exception e)
   {        
     System.out.println("Level 2:" + e.getClass().toString());        
    }
    finally
   {               
    System.out.println("In Level 2 finally");      
 }      
   // result = 100 / 0;  //level 1  
  }      
  catch (Exception e)
  {          
   System.out.println("Level 1:" + e.getClass().toString());     
  }     
  finally
  {          
    System.out.println("In Level 1 finally");
  }
 }

}

 finally 语句的执行顺序是由里向外执行的。

动手动脑4：

package cat;
public class catwho {

public static void main(String[] args)
   
 {
       
  try
  {

           
   System.out.println("in main");
           
   throw new Exception("Exception is thrown in main");

              //System.exit(0);

       
  }
       
  catch(Exception e)

         {
           
   System.out.println(e.getMessage());
           
   System.exit(0);
       
  }
       
  finally
       
  {
           
   System.out.println("in finally");
       
  }
   
 }
}