如何用Java画一个ASCII楼梯？

Question

我一直在尝试用 Java 来完成这个工作。画起来很复杂，至少对我来说是这样。

Q1 编写一个简单的 Java 程序，打印楼梯或图形，如下所示：

                +---+
                |   |
            +---+---+
            |   |   |
        +---+---+---+
        |   |   |   |
    +---+---+---+---+
    |   |   |   |   |
+---+---+---+---+---+
|   |   |   |   |   |
+---+---+---+---+---+

我已经想出了一个解决方案，但还没有完成一半。这是我想出的代码

                +---+
                |   |
            +---+---+
            |   |   |
        +---+---+---+
        |   |   |   |
    +---+---+---+---+
    |   |   |   |   |
+---+---+---+---+---+
|   |   |   |   |   |
+---+---+---+---+---+

这就是它的作用。

                    +---+ 
                    |   |                    |
               +---+---+ 
               |   |                    |
          +---+---+---+ 
          |   |                    |
     +---+---+---+---+ 
     |   |                    |
+---+---+---+---+---+ 
|   |                    |
+---++---++---++---++---+

任何人都可以帮助我并指导我使用我的代码吗？我希望有人能告诉我出了什么问题以及应该改变什么。

Answer 1

这是我对问题的解决方案。感谢您的拼图；）

public class Staircase {
    public static final int SIZE = 5;
    public static final int STAIR_WIDTH = 5;
    public static final String TREAD = "-";
    public static final String RISER = "|";
    public static final String NOSING = "+";
    public static final String HOLLOW = " ";

    public static void main(String[] args)
    {
        StringBuilder step = new StringBuilder();
        for (int i = 0; i < (STAIR_WIDTH - 2); ++i) { step.append(TREAD); }
        StringBuilder hollow = new StringBuilder();
        for (int i = 0; i < (STAIR_WIDTH - 2); ++i) { hollow.append(HOLLOW); }

        StringBuilder tread = new StringBuilder();
        for (int i = 0; i < SIZE; ++i) { tread.append(NOSING + step); }
        tread.append(NOSING);

        StringBuilder riser = new StringBuilder();
        for (int i = 0; i < SIZE; ++i) { riser.append(RISER + hollow); }
        riser.append(RISER);

        for (int i = 0; i < SIZE; ++i) {
            int offset = tread.length() - (((STAIR_WIDTH - 1) * i) + STAIR_WIDTH);
            printSpaces(offset);
            System.out.println(tread.substring(offset));
            printSpaces(offset);
            System.out.println(riser.substring(offset));
        }
        System.out.println(tread);
    }

    public static void printSpaces(int count)
    {
        for (int i = 0; i < count; ++i)
            System.out.print(" ");
    }
}