Question

用JAVA如何取1831的个位数，十位数，百位数，千位数，的数值

如何取个位的1,十位的3,百位的8,千位的1，谢谢

Answer 1

个位数=1831%10
十位数=183%10
百位数=18%10
千位数=1%10

int i;
i = System.in.read(); //实际上要捕获异常
int units,tens,hundreds,thousands;

units = i%10;
tens = (i/10)%10;
hundreads = (i/100)%10;
thousands =(1/1000)%10;

然后再用System.out.print();函数输出结果就好

Answer 2

public static void main(String[] args){
        int s=1831;
        int g = s%10;
        int sw = s/10%10;
        int b = s/100%10;
        int q = s/1000%10;
        System.out.println("个位数是:"+g+";十位数是:"+sw+";百位数是："+b+";千位数是："+q);
    }
结果:个位数是:1;十位数是:3;百位数是：8;千位数是：1

Answer 3

int n=1831;

System.out.println("个位 "+ (n % 10));
System.out.println("十位 "+ (n % 100)/10);
System.out.println("百位 "+ (n % 1000)/100);
System.out.println("千位 "+ (n /1000));

Answer 4

String s = 1831 + "";
for(int i = 0; i < s.length(); i++){
int j = s.charAt(i) - '0';
System.out.println("第"+（i+1）+"位是"+j);

}