作业-异常处理

package YiChang;

public class YiChang {
    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(ArithmeticException e){
                    System.out.println("出现算数异常！");
                }
                break;
                case 1: 
                    try{
                        int  b[]=null;
                        k = b[0];
                    }catch(NullPointerException e){
                        System.out.println("出现空指针异常！");
                    }
                    break;
                case 2:
                    int c[]=new int[2];
                    try{
                        k=c[9];
                    }catch(ArrayIndexOutOfBoundsException e){
                        System.out.println("出现数组序号溢出！");
                    }
                    break;
                case 3:
                    try{
                        char  ch="abc".charAt(99);
                    }catch(StringIndexOutOfBoundsException e){
                        System.out.println("出现数据类型转换异常！");
                    }
                    break;
            }
        }
    }
}