能不能稍微改的简介一些，总感觉判断的环节还可以再方便点.....

获取随机0~9之间的数，显示每个数的出现次数

public class zuoye
{   
    public static void main(String[] args) {
        int[] ch = new int[100];
        int a=0,b=0,c=0,d=0,e=0,f=0,g=0,h=0,j=0,k=0;
        for(int i = 0; i<ch.length; i++){
            ch[i] = (int)(Math.random() * 10);
            
        }

        for(int i = 0; i<ch.length; i++){
            if(ch[i] == 0){
                a++;   
            }
            if(ch[i] == 1){
                b++;   
            }
            if(ch[i] == 2){
                c++;   
            }
            if(ch[i] == 3){
                d++;   
            }
            if(ch[i] == 4){
                e++;   
            }
            if(ch[i] == 5){
                f++;   
            }
            if(ch[i] == 6){
                g++;   
            }
            if(ch[i] == 7){
                h++;   
            }
            if(ch[i] == 8){
                j++;   
            }
            if(ch[i] == 9){
                k++;   
            }
        }
        System.out.println("0出现" + a +"次");
        System.out.println("1出现" + b +"次");
        System.out.println("2出现" + c +"次");
        System.out.println("3出现" + d +"次");
        System.out.println("4出现" + e +"次");
        System.out.println("5出现" + f +"次");
        System.out.println("6出现" + g +"次");
        System.out.println("7出现" + h +"次");
        System.out.println("8出现" + j +"次");
        System.out.println("9出现" + k +"次");

    }

}
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