如何解决棋盘格子不移动到中间的问题

Question

目前我尝试制作一个固定尺寸的棋盘。我成功地将棋盘绘制在角落（坐标0,0,400,400）。但是，现在我希望如果我移动窗口，棋盘也将始终位于中间。棋盘的背景总是移动的，并且总是在中间，但方块是固定的。为了让您了解我的问题，我上传了一些图片，您可以在其中看到我的主要问题。

第一次开始：

将窗口移至左侧

背景在中间，但没有白色方块

Answer 1

这是绘制正方形的“正确”方法。for (int i = width; i < 400 + width; i += 100) {&nbsp; &nbsp; for (int j = height; j < 400 + height; j += 100) {&nbsp; &nbsp; &nbsp; &nbsp; g.setColor(Color.white);&nbsp; &nbsp; &nbsp; &nbsp; g.fillRect(i, j, 50, 50);&nbsp; &nbsp; &nbsp; &nbsp; g.setColor(Color.black);&nbsp; &nbsp; &nbsp; &nbsp; g.drawRect(i, j, 50, 50);&nbsp; &nbsp; }}for (int i = width + 50; i < 400 + width; i += 100) {&nbsp; &nbsp; for (int j = height + 50; j < 400 + height; j += 100) {&nbsp; &nbsp; &nbsp; &nbsp; g.setColor(Color.white);&nbsp; &nbsp; &nbsp; &nbsp; g.fillRect(i, j, 50, 50);&nbsp; &nbsp; &nbsp; &nbsp; g.setColor(Color.black);&nbsp; &nbsp; &nbsp; &nbsp; g.drawRect(i, j, 50, 50);&nbsp; &nbsp; }}

Answer 2

您可以使用较小两倍的代码来实现它：for (int i = width; i < 400 + width; i += 100) {&nbsp; &nbsp;for (int j = height; j < 400 + height; j += 100) {&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; g.setColor(Color.white);&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; g.fillRect(i, j, 50, 50);&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; g.fillRect(i+50, j+50, 50, 50);&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; g.setColor(Color.black);&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; g.drawRect(i, j, 50, 50);&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; g.drawRect(i+50, j+50, 50, 50);&nbsp; &nbsp; &nbsp; &nbsp; }&nbsp; &nbsp; }