异常练习1

 

 

package Exception;

public class TestException {

    public static void main(String[] args) {
        // TODO 自动生成的方法存根
        for(int i=0;i<4;i++){
            int  k;
            switch(i){
                case 0:
        int zero=0;
        try{
        k=911/zero;
        break;
        }catch(Exception ex)
        {
            ex.printStackTrace();
            System.out.println("异常1"+ex.getMessage());
        }
        
        case1:
        try{
        int  b[]=null;
        k = b[0];
        break;
        }
        catch(Exception ex)
        {
            ex.printStackTrace();
            System.out.println("异常二"+ex.getMessage());
        }
        case2:
        try{            
        int c[]=new int[2];

        k=c[9];
        break;
        }
        catch(Exception ex)
        {
            ex.printStackTrace();
            System.out.println("异常三"+ex.getMessage());
            
        }
        case3:
        try{            
        char  ch="abc".charAt(99);
        }
        catch(Exception ex)
        {
            ex.printStackTrace();
            System.out.println("异常四"+ex.getMessage());
        }
        break;
            }
        }
        

    }

}