异常处理1

package exception;

public class TestException {

    public static void main(String[] args) {
        
        for(int i=0;i<4;i++){
            int  k;
            switch(i){
                case 0:
        int zero=0;
        try
        {
        k=911/zero;
        }catch(Exception ex)
        {
            
            System.out.println("出现异常1");
            ex.printStackTrace();
        }
        break;
                case 1:
        int  b[]=null;
        try{
        k = b[0];
        }catch(Exception ex)
        {
            
            System.out.println("出现异常2");
            ex.printStackTrace();
        }
        break;
                case 2:
        int c[]=new int[2];
        try{

        k=c[9];
        }catch(Exception ex)
        {
            
            System.out.println("出现异常3");
            ex.printStackTrace();
        }
        break;
                case 3:
                    try
                    {
        char  ch="abc".charAt(99);
                    }catch(Exception ex)
                    {
                        System.out.println("出现异常4");
                        ex.printStackTrace();
                    }
        break;
            }
        }

        System.out.println("检查结束");
        
        
        

    }

}