用于循环星号和加号（矩形表格）

Question

我想创建一个程序，用户输入矩形的高度和宽度，但使用*和+。这是我的代码

class Parallelogram {
public static void main(String[]args){

Scanner x = new Scanner(System.in);
int w;
int h;

System.out.print("Enter the Width ");
w = x.nextInt();
System.out.print("Enter the height ");
h = x.nextInt();

for (int i = 0; i < h; i++) {

      for (int j = 0; j < w; j++) {

           System.out.print("*");

      }
      System.out.println();
      }
 }}

输出

MY PROGRAM :                   What i want my program to look          
Enter width : 4                 Enter width : 4                      
Enter height : 5                Enter height : 5
****                            ****
****                            ++++
****                            ****
****                            ++++
****                            ****

Answer 1

只需在for循环中添加一个模数。

此代码将为您解决问题：

public static void main(String[] args) {

    Scanner x = new Scanner(System.in);
    int w;
    int h;

    System.out.print("Enter the Width ");
    w = x.nextInt();
    System.out.print("Enter the height ");
    h = x.nextInt();

    for (int i = 0; i < h; i++) {

        for (int j = 0; j < w; j++) {

            if(i % 2 == 0){
                System.out.print("*");
            }else{
                System.out.print("+");
            }

        }
        System.out.println();
    }
}