Java 增加 JButton 中的字体大小
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Increasing Font Size in a JButton
提问by Smn21
I am at a loss of what to do for the finalization of my term project. I am working on a Connect Four game and I'd like to increase the font size inside of a JButton. I'm relatively new to programming and I haven't worked anything with fonts yet. I'd just like to at least double the font inside of the button to make it more visible during gameplay. Can someone help me, or point me into the direction of finding a solution? Thanks! My code is below.
我不知道如何完成我的学期项目。我正在开发 Connect Four 游戏，我想增加 JButton 内的字体大小。我对编程比较陌生，还没有接触过任何字体。我只想将按钮内的字体至少加倍，使其在游戏过程中更加明显。有人可以帮助我，或指出我找到解决方案的方向吗？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();
}
}
回答by Brian Bowman
I'm not sure if this will work, but looking at the JButtondocs, there is a setFont(Font font)method you can call. You can try passing it a Fontcreated with the font size you'd like using the Font(String name, int style, int size)constructor.
我不确定这是否可行，但查看JButton文档，您可以调用setFont(Font font)方法。你可以试着传递一个字体以及您希望使用的字体大小创建Font(String name, int style, int size)构造函数。
回答by Colin
You can use:
您可以使用：
button.setFont(new Font("Arial", Font.PLAIN, 40));
"Arial"is obviously the name of the font being used.Font.PLAINmeans plain text (as opposed to bold or italic).40is the font size (using the same numbering system for font size as Microsoft Word)
"Arial"显然是正在使用的字体的名称。Font.PLAIN表示纯文本（而不是粗体或斜体）。40是字体大小（使用与 Microsoft Word 相同的字体大小编号系统）
Javadoc for JComponent.setFont()
