增加 JButton 中的字体大小

Question

我不知道该怎么做才能完成我的学期项目。我正在开发 Connect Four 游戏，我想增加 JButton 中的字体大小。我对编程还比较陌生，还没有使用过任何字体。我只想至少将按钮内的字体加倍，以使其在游戏过程中更加明显。有人可以帮助我，或者指出我寻找解决方案的方向吗？谢谢！我的代码如下。

 import java.awt.*;
import java.awt.event.*;
import javax.swing.*;

public class Connect implements ActionListener {

private JFrame window = new JFrame("Connect Four by Steven and Anthony");
private JPanel myPanel = new JPanel();
private JPanel myPanelB = new JPanel();
private JButton[][] myButtons = new JButton[6][7];
private JButton[] buttons = new JButton[7];
private boolean win = false;

private int count = 5;
private int count2 = 5;
private int count3 = 5;
private int count4 = 5;
private int count5 = 5;
private int count6 = 5;
private int count7 = 5;
private int countA = 0;
private String letter = "";

public boolean checkHorizontalWin(String letter) {
for (int y = 0; y < myButtons.length; y++) {
    for (int x = 0; x < myButtons[y].length - 3; x++) {
        if (myButtons[y][x].getText().equals(letter)
            && myButtons[y][x + 1].getText().equals(letter)
            && myButtons[y][x + 2].getText().equals(letter)
            && myButtons[y][x + 3].getText().equals(letter)
        ) {
            return true;
        }
    }
}
return false;
}

public boolean checkVerticalWin(String letter) {
    for (int y = 0; y < myButtons.length - 3; y++) {
        for (int x = 0; x < myButtons[y].length; x++) {
            if (myButtons[y][x].getText().equals(letter)
                && myButtons[y + 1][x].getText().equals(letter)
                && myButtons[y + 2][x].getText().equals(letter)
                && myButtons[y + 3][x].getText().equals(letter)
            ) {
                return true;
            }
        }
    }
    return false;
}

public boolean checkDiagonalToTheLeftWin(String letter) {
    for (int y = 0; y < myButtons.length - 3; y++) {
        for (int x = 0; x < myButtons[y].length - 3; x++) {
            if (myButtons[y][x].getText().equals(letter)
                && myButtons[y + 1][x + 1].getText().equals(letter)
                && myButtons[y + 2][x + 2].getText().equals(letter)
                && myButtons[y + 3][x + 3].getText().equals(letter)
            ) {
                return true;
            }
        }
    }
    return false;
}

public boolean checkDiagonalToTheRightWin(String letter) {
    for (int y = 0; y < myButtons.length - 3; y++) {
        for (int x = 3; x < myButtons[y].length; x++) {
            if (myButtons[y][x].getText().equals(letter)
                && myButtons[y + 1][x - 1].getText().equals(letter)
                && myButtons[y + 2][x - 2].getText().equals(letter)
                && myButtons[y + 3][x - 3].getText().equals(letter)
            ) {
                return true;
            }
        }
    }
    return false;
}

public Connect(){
    window.setSize(800,700);
    window.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    myPanel.setLayout(new GridLayout(1,7));
    myPanelB.setLayout(new GridLayout(6,7));
    for (int i = 0; i < buttons.length; i ++){
        buttons[i] = new JButton();
        myPanel.add(buttons[i]);
        buttons[i].addActionListener(this);
    }
    for (int i = 0; i < 6; i ++){
        for (int j = 0; j < 7; j ++){
            myButtons[i][j] = new JButton();
            myPanelB.add(myButtons[i][j]);
        }
    }
    window.add(myPanel, BorderLayout.NORTH);
    window.add(myPanelB, BorderLayout.CENTER);
    window.setVisible(true);
}

public void actionPerformed(ActionEvent e){
    countA++;
    if (countA % 2 == 0)
        letter = "X";
    else
        letter = "O";

    if (e.getSource() == buttons[0]){
        myButtons[count][0].setText(letter);
        count --;
    }
    if (e.getSource() == buttons[1]){
        myButtons[count2][1].setText(letter);
        count2 --;
    }
    if (e.getSource() == buttons[2]){
        myButtons[count3][2].setText(letter);
        count3--;
    }
    if (e.getSource() == buttons[3]){
        myButtons[count4][3].setText(letter);
        count4--;
    }
    if (e.getSource() == buttons[4]){
        myButtons[count5][4].setText(letter);
        count5--;
    }
    if (e.getSource() == buttons[5]){
        myButtons[count6][5].setText(letter);
        count6--;
    }
    if (e.getSource() == buttons[6]){
        myButtons[count7][6].setText(letter);
        count7--;
    }
    if (myButtons[0][0].getText().equals("O") || myButtons[0][0].getText().equals("X")){
        buttons[0].setEnabled(false);
    }
    if (myButtons[0][1].getText().equals("O") || myButtons[0][1].getText().equals("X")){
        buttons[1].setEnabled(false);
    }
    if (myButtons[0][2].getText().equals("O") || myButtons[0][2].getText().equals("X")){
        buttons[2].setEnabled(false);
    }
    if (myButtons[0][3].getText().equals("O") || myButtons[0][3].getText().equals("X")){
        buttons[3].setEnabled(false);
    }
    if (myButtons[0][4].getText().equals("O") || myButtons[0][4].getText().equals("X")){
        buttons[4].setEnabled(false);
    }
    if (myButtons[0][5].getText().equals("O") || myButtons[0][5].getText().equals("X")){
        buttons[5].setEnabled(false);
    }

   if (myButtons[0][6].getText().equals("O") || myButtons[0][6].getText().equals("X")){
        buttons[6].setEnabled(false);
}

if (checkHorizontalWin(letter)
    || checkVerticalWin(letter)
    || checkDiagonalToTheLeftWin(letter)
    || checkDiagonalToTheRightWin(letter)
    ) {
        win = true;

        if (win == true) {
            JOptionPane.showMessageDialog(null, letter + " has won!");
            System.exit(0);
        }
    }
}

/**
 *
 * @param args
 */
public static void main(String[] args){
    new Connect();
}
}

原文由 Smn21 发布，翻译遵循 CC BY-SA 4.0 许可协议

Answer 1

您可以使用：

 button.setFont(new Font("Arial", Font.PLAIN, 40));

• "Arial" 显然是正在使用的字体的名称。
• Font.PLAIN 表示纯文本（与粗体或斜体相对）。
• 40 是字体大小（使用与 Microsoft Word 相同的字体大小编号系统）

JComponent.setFont() 的 Javadoc

Java.awt.Font 的 Javadoc

原文由 Colin 发布，翻译遵循 CC BY-SA 3.0 许可协议