java - 带星号的数字

Question

我是java新手，我想知道是否可以在数字旁边添加星号， 例子: 1* 2** 3***

这里有我的代码

package ReviewExercise;
import java.util.Scanner;
public class review1 {

    /**
     * @param args
     */
    public static void main(String[] args) {
        // TODO Auto-generated method stub

        Scanner sc = new Scanner(System.in);
        System.out.print("Enter number from 1 - 10: ");
        int num = sc.nextInt();

        //for(int r = 1; ; r++){
            for(int c = 1; c <= num; c++) {
                for (int r = c; r <= c; r++) {
                System.out.println(c);
            }
        }
    }

}

Answer 1

修改您的 for 循环，如下所示:

for(int c = 1; c <= num; c++) 
{
    System.out.print(c);
    for (int r = 1; r <= c; r++) 
    {
        System.out.print("*");
    }
    System.out.print(" ");
}