"while-loop"无法正常工作

Question

我正在学习java,使用"Java how to program"这本书.我正在解决练习.在这个实际练习中,我应该创建一个从用户读取整数的程序.然后,程序应显示与用户读取的整数相对应的方形星号(*).F.eks用户输入整数3,程序应该显示:

***
***
***

我尝试在另一行中嵌入一个while语句,第一个在一行上重复星号,另一个在相同的时间重复这个.不幸的是,我只让程序显示一行.谁能告诉我我做错了什么？代码如下:

import java.util.Scanner;
public class Oppgave618 
{

    public static void main(String[] args) 
    {
    int numberOfSquares;
    Scanner input = new Scanner(System.in);
    System.out.print("Type number of asterixes to make the square: ");
    numberOfSquares = input.nextInt();

        int count1 = 1;
    int count2 = 1;

    while (count2 <= numberOfSquares)

        {
        while (count1 <= numberOfSquares)
            {
            System.out.print("*");
            count1++;
            }
        System.out.println();
        count2++;
        }

    }

}

Answer 1

您应该count1在外循环的每次迭代中重置

public static void main(String[] args)  {
    int numberOfSquares;
    Scanner input = new Scanner(System.in);
    System.out.print("Type number of asterixes to make the square: ");
    numberOfSquares = input.nextInt();
             //omitted declaration of count1 here
    int count2 = 1;
    while (count2 <= numberOfSquares) {
        int count1 = 1; //declaring and resetting count1 here
        while (count1 <= numberOfSquares) {
            System.out.print("*");
            count1++;
        }
        System.out.println();
        count2++;
    }
}