Java学习之利用复选框进行字体的设置

系统管理员 2023-01-18 06:42 123阅读 0赞

**案例代码：**

import java.awt.*;
    import java.awt.event.*;
    import javax.swing.*;
    public class Example8_14 extends JFrame {
        
    	private JCheckBox italic;
    	private JCheckBox bold;
    	private JLabel label;
    	public Example8_14(){
        
    		//创建一个JLabel标签,居中对齐
    		label = new JLabel("来改变字体形态",JLabel.CENTER);
    		label.setFont(new Font("宋体",Font.PLAIN,20));//设置标签文本的字体
    		this.add(label);//在 CENTER域添加标签
    		JPanel panel = new JPanel();//创建一个 JPanel面板
    		//创建两个JcheckBox复选框
    		italic = new JCheckBox("字体倾斜");
    		bold = new JCheckBox("字体加粗");
    		//为复选框定义ActionListener监听器
    		ActionListener listener = new ActionListener(){
        
    			public void actionPerformed(ActionEvent e){
        
    				int mode = 0;
    				if(bold.isSelected())
    					mode += Font.BOLD;
    				if(italic.isSelected())
    					mode += Font. ITALIC;
    				label.setFont(new Font("宋体",mode, 20));
    				}
    			};
    	//为复选框分别添加监听器
    			italic.addActionListener(listener);
    			bold.addActionListener(listener);//在 JPane1面板中添加复选框
    			panel.add(italic);
    			panel.add(bold);
    			this.add(panel, BorderLayout. SOUTH);
    			this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    			this.setSize(300,300);
    			this.setVisible(true);
    	}
    	public static void main(String[]args){
        
    	new Example8_14();
    	}
    }

**案例运行图：**

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NzA2MjkwNw_size_16_color_FFFFFF_t_70_pic_center]

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