第七章 4

package a7;


import java.util.Scanner;


public class C_4 {
public static void main(String[] args) {
Scanner input = new Scanner(System.in);
int[] num = new int[10];
int bad = 0;
int one = 0;
int two = 0;
int three = 0;
System.out.println("请输入10个数");
for(int i = 0;i < num.length;i++) {
num[i] = input.nextInt();
if(num[i]<1 || num[i]>3) {
bad++;
}else {
switch(num[i]) {
case 1:
one++;
break;
case 2:
two++;
break;
case 3:
three++;
break;
}
}
}
System.out.println("数字1的个数："+one);
System.out.println("数字2的个数："+two);
System.out.println("数字3的个数："+three);
System.out.println("非法数字的个数："+bad);
}
}