我正在引用此链接，但这最终不会解决我的问题(即，我是从其他人的计算机上运行程序的)。 How to deal with "java.lang.OutOfMemoryError: Java heap space" error (64MB heap size)。现在，我有一个具有10x10正方形的游戏板，但是我需要将其增加到100x100，但是当我这样做时，会出现此错误。在避免出现此错误的同时增加游戏板尺寸的最佳方法是什么？当前输出如下，代码应编译并运行。谢谢!
GameBoard类:
import java.awt.*;
import java.awt.image.BufferedImage;
import javax.swing.*;
import javax.swing.border.*;
public class GameBoard {
private final JPanel board = new JPanel(new BorderLayout(3, 3));
private JButton[][] c1squares = new JButton[10][10];
private JPanel c1Board, c2Board;
private final JLabel messagec1 = new JLabel("Player 1 Board");
JToolBar tool = new JToolBar();
Insets Margin = new Insets(0,0,0,0);
int squares = 10;
int space = 100;
ImageIcon icon = new ImageIcon(new BufferedImage(space, space, BufferedImage.TYPE_INT_ARGB));
GameBoard() {
initializeGui();
}
public final void initializeGui() {
board.setBorder(new EmptyBorder(5, 5, 5, 5));
tool.setFloatable(false);
board.add(tool, BorderLayout.PAGE_START);
tool.add(messagec1);
c1Board = new JPanel(new GridLayout(0, 10));
c1Board.setBorder(new LineBorder(Color.BLACK));
board.add(c1Board);
for (int i = 1; i < c1squares.length; i++) {
for (int j = 0; j < c1squares[i].length; j++) {
JButton b = new JButton();
b.setMargin(Margin);
b.setIcon(icon);
if ((j % 2 == 1 && i % 2 == 1) || (j % 2 == 0 && i % 2 == 0)) {
b.setBackground(Color.WHITE);
} else {
b.setBackground(Color.BLACK);
}
c1squares[j][i] = b;
}
}
for (int i = 1; i < squares; i++) {
for (int j = 0; j < squares; j++) {
c1Board.add(c1squares[j][i]);
}
}
public final JComponent getGui() {
return board;
}
public final JComponent getGui2() {
return board2;
}
}
BattleShipFinal类:
import java.awt.Dimension;
import java.awt.Toolkit;
import javax.swing.JFrame;
public class BattleshipFinal {
public static void main(String[] args) {
GameBoard gb = new GameBoard();
JFrame frame = new JFrame("Battleship - Server");
frame.add(gb.getGui());
frame.setLocationByPlatform(true);
frame.setMinimumSize(frame.getSize());
frame.setDefaultCloseOperation(frame.EXIT_ON_CLOSE);
frame.setPreferredSize(new Dimension(900,900));
frame.setMinimumSize(new Dimension(900,900));
frame.setLocation(50,50);
frame.pack();
frame.setVisible(true);
}
}
最佳答案
如果您很好奇，并且为了说明人们在评论中所说的话，可以使用自定义的JPanel绘制正方形。
如果您需要响应鼠标事件，请在面板上添加MouseListener，它将处理选定的正方形(尚未添加该部分，但是selected类内的Square字段是提示)。
我从您的代码中删除了一些内容，只是为了演示此绘画部分。
游戏板 :
import java.awt.Color;
import java.awt.Graphics;
import javax.swing.JComponent;
import javax.swing.JPanel;
import javax.swing.border.EmptyBorder;
public class GameBoard {
private JPanel board;
private final Square[][] c1squares = new Square[10][10];
GameBoard() {
initializeGui();
}
public final void initializeGui() {
for (int i = 0; i < c1squares.length; i++) {
for (int j = 0; j < c1squares[i].length; j++) {
Square square = new Square();
if ((j % 2 == 1 && i % 2 == 1) || (j % 2 == 0 && i % 2 == 0)) {
square.setBackground(Color.WHITE);
} else {
square.setBackground(Color.BLACK);
}
c1squares[i][j] = square;
}
}
board = new BoardPanel(c1squares);
board.setBorder(new EmptyBorder(5, 5, 5, 5));
}
public final JComponent getGui() {
return board;
}
private class BoardPanel extends JPanel {
Square[][] squares;
public BoardPanel(final Square[][] squares) {
this.squares = squares;
}
@Override
public void paintComponent(final Graphics g) {
super.paintComponent(g);
int width = getWidth();
int height = getHeight();
for (int i = 0; i < squares.length; i++) {
for (int j = 0; j < squares[i].length; j++) {
Square currentSquare = squares[i][j];
System.out.println("Managing square " + i + " " + j);
g.setColor(currentSquare.getBackground());
g.fillRect(i * width / squares.length, j * height / squares.length, width / squares.length,
height / squares.length);
}
}
}
}
private class Square {
boolean isSelected;
Color background;
public boolean isSelected() {
return isSelected;
}
public void setSelected(final boolean isSelected) {
this.isSelected = isSelected;
}
public Color getBackground() {
return background;
}
public void setBackground(final Color background) {
this.background = background;
}
}
}
战舰决赛
import java.awt.Dimension;
import javax.swing.JComponent;
import javax.swing.JFrame;
public class BattleshipFinal {
public static void main(final String[] args) {
GameBoard gb = new GameBoard();
JFrame frame = new JFrame("Battleship - Server");
JComponent board = gb.getGui();
frame.add(board);
frame.setLocationByPlatform(true);
//frame.setMinimumSize(frame.getSize());
frame.setDefaultCloseOperation(frame.EXIT_ON_CLOSE);
//frame.setPreferredSize(new Dimension(100, 100));
board.setMinimumSize(new Dimension(100, 100));
board.setPreferredSize(new Dimension(100, 100));
frame.setMinimumSize(new Dimension(100, 100));
frame.setLocation(50, 50);
frame.pack();
frame.setVisible(true);
}
}