算术运算符的练习
随意给出一个整数,打印显示它的个位数,十位数,百位数的值。
class Kjnj
{
public static void main(String[] args)
{
int a=351;
int b = a/100;
//int c = a%100;
//int s = c/10;
int s = (a%100)/10;
int g = a%10;
System.out.println("g=" + g + ",s=" + s + ",b="+b);
}
}
下面给出了一些优化
class kjnj
{
public static void main(String[] args)
{
int a=67951;
int b ;
//int c = a%100;
//int s = c/10;
// int s = (a%100)/10;
// int g = a%10;
while(a!=0)
{
b=a%10;
a=a/10;
System.out.println("b="+b);
}
//System.out.println("g=" + g + ",s=" + s + ",b="+b);
}
}
package Test;
import java.util.Scanner;
public class Test1 {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
System.out.println("输入一个数:");
int n = sc.nextInt();
int bw = n / 100;
int sw = n % 100 / 10;
int gw = n % 10;
System.out.println(bw+":"+sw+":"+gw);
}
}