JavaSWing——倾斜，加粗，精华答案。哈哈哈，

package Swing;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
public class 按钮组件 {
	public static void main(String[] args) {
		new check("check窗口");	
	}
}
class check extends JFrame{
	JLabel lab;
	JPanel jp;
	JCheckBox jcb1,jcb2;
	Monitorn n=new Monitorn();
	public check(String title){
		super(title);
		lab=new JLabel("HelloWord！！",JLabel.CENTER);
		lab.setFont(new Font("宋体",Font.PLAIN,20));
		jp=new JPanel();
		jcb1 =new JCheckBox("倾斜");
		jcb2 =new JCheckBox("加粗");
		jcb1.addActionListener(n);
		jcb2.addActionListener(n);
		this.add(lab);
		jp.add(jcb1);
		jp.add(jcb2);
		this.add(jp,BorderLayout.PAGE_END);
		this.setLocation(300, 200);
		this.setSize(300,200);
		this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		this.setVisible(true);
	}
	class Monitorn implements ActionListener{
		public void actionPerformed(ActionEvent e){
			int i=0;
			if(jcb1.isSelected()==true){
				i+=Font.ITALIC;//倾斜
			}
			if(jcb2.isSelected()==true){
				i+=Font.BOLD;//加粗
			}
			lab.setFont(new Font("宋体",i,20));
		}
	}
}