Java AWT Graphics类:生成正方形的行和列

import java.awt.Graphics;
import javax.swing.JFrame;
import javax.swing.JPanel;

public class SquareGrid extends JPanel {

    public void paintComponent(Graphics g) {
        super.paintComponent(g);
        int width = getWidth();
        int height = getHeight();
        
        int rows = 5; // 设置行数
        int cols = 5; // 设置列数
        
        int squareSize = Math.min(width, height) / Math.max(rows, cols);
        
        for (int row = 0; row < rows; row++) {
            for (int col = 0; col < cols; col++) {
                int x = col * squareSize;
                int y = row * squareSize;
                g.drawRect(x, y, squareSize, squareSize);
            }
        }
    }

    public static void main(String[] args) {
        JFrame frame = new JFrame("Square Grid");
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.setSize(400, 400);
        SquareGrid panel = new SquareGrid();
        frame.add(panel);
        frame.setVisible(true);
    }
}