聊天窗口

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

public class Test extends JFrame{//把需要的组件全部在这里定义
	
	JTextArea wby;//文本域
	JPanel mb;
	JComboBox xlk;//下拉框
	JButton an;
	JTextField wbk;//文本框
	JScrollPane gd;
	
	
	public static void main(String[] args){
		Test lx=new Test();
	}

public Test(){
		
	    wby=new JTextArea();
	    mb=new JPanel();
	    String[] lt={"悟空","八戒","沙僧","小白龙"};
	    xlk=new JComboBox(lt);
	    wbk=new JTextField(10);
	    an=new JButton("发送");
	    gd=new JScrollPane(wby);
	    
	    mb.add(xlk);mb.add(wbk);mb.add(an);
	    this.add(gd);this.add(mb,BorderLayout.SOUTH);
		
		this.setTitle("聊天窗口");
		this.setSize(500,300);
		this.setIconImage((new ImageIcon("image/qq.jpg")).getImage());//左上角标签栏添加小图标
		this.setLocation(300,280);
		this.setResizable(false);
		this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		this.setVisible(true);
	}
}