java - 重复结构、过程方法

Question

public static void main (String args[])
{
        String c = "Message";
        int width;
        int height;
        char character;
        Scanner sc = new Scanner(System.in);
        System.out.println("Enter the character : ");
        character = sc.next().charAt(0);
        System.out.println("Enter your width: ");
        width=sc.nextInt();
        System.out.println("Enter your height: ");
        height=sc.nextInt();
        System.out.println();
        for (int i = 0; i < height; i++) {
            for (int j = 0; j < width; j++) {
                if (i == 0 || i == height-1) {
                    System.out.print(character);
                } else if (j ==width-1) {
                    String middle = character + "  " + c + "  " + character;
                    System.out.print(middle);
                } 
            }
            System.out.println();
        }
    }

}

我试图让消息显示在矩形中。另外，有没有办法让我也可以在屏幕中央移动我的矩形？

Answer 1

该代码可以实现您的目的，但请注意，这很丑陋。 首先，您将获取整个用户输入行而不是第一个字符。

public static void main(String args[]) {
    String c = "Message";
    char character;
    Scanner sc = new Scanner(System.in);
    System.out.println("Enter the character : ");
    character = sc.next().charAt(0);
    System.out.println();
    for (int i = 0; i < 3; i++) {
        for (int j = 0; j < 13; j++) {
            if (i == 0 || i == 2) {
                System.out.print(character);
            } else if (j == 0) {
                String middle = character + "  " + c + "  " + character;
                System.out.print(middle);
            } 
        }
        System.out.println();
    }
}

输出:

aaaaaaaaaaaaa
a  Message  a
aaaaaaaaaaaaa