这个界面实现了以前QQ登录界面的大部分功能，由于水平原因界面背景暂时还没实现，希望有大神指教一下，万分感谢

import java.io.IOException;
import java.net.URI;
import java.net.URISyntaxException;import javax.swing.JFrame;
import javax.swing.JTextField;
import javax.swing.JPasswordField;
import javax.swing.JLabel;
import javax.swing.JCheckBox;
import javax.swing.JComboBox;
import javax.swing.ImageIcon;
import javax.swing.JButton;import java.awt.Color;
import java.awt.Container;
import java.awt.Desktop;
import java.awt.Image;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;/*** 仿QQ登陆器* @author Administrator**/
public class myQQ
{public static void main(String[] args){JTextField username;JPasswordField password;JLabel jl1;final JLabel jl2, jl3;JButton but;JCheckBox jc1,jc2;JComboBox jcb;JFrame jf= new JFrame();jf.setBounds(0,0,340,340);jf.setLocationRelativeTo(null);jf.setResizable(false);jf.setTitle("我的QQ2018");jf.setLayout(null);Image image = new ImageIcon("图片/QQ公仔.jpg").getImage();jf.setIconImage(image);Container con = jf.getContentPane();jl1 = new JLabel();jl1 = new JLabel();Image image2 = new ImageIcon("图片/QQ公仔.jpg").getImage();jl1.setIcon(new ImageIcon(image2));jl1.setBounds(40,95,54,60);username = new JTextField();username.setBounds(100,100,150,20);jl2 = new JLabel("注册账号");jl2.addMouseListener(new MouseAdapter(){public void mouseClicked(MouseEvent e){URI uri;                  try {uri = new URI("https://ssl.zc.qq.com/chs/index.html?from=client&pt_clientver=5503&pt_src=1&ptlang=2052&regkey=A892C6E5EC7E5EB76F4D3C218465A090D9A629284F9F9C210FF658B210355C35&ADUIN=0&ADSESSION=0&ADTAG=CLIENT.QQ.5503_NewAccount_Btn.0&ADPUBNO=26638");Desktop dtp = Desktop.getDesktop();if(Desktop.isDesktopSupported()&&dtp.isSupported(Desktop.Action.BROWSE)){try{dtp.browse(uri);} catch(IOException e1){e1.printStackTrace();}}} catch(URISyntaxException e1){e1.printStackTrace();}}                public void mouseEntered(MouseEvent e){jl2.setForeground(Color.red);}public void mouseExited(MouseEvent e){jl2.setForeground(Color.blue);}});jl2.setBounds(260,100,70,20);password = new JPasswordField();password.setBounds(100,130,150,20);jl3 = new JLabel("找回密码");jl3.addMouseListener(new MouseAdapter(){public void mouseClicked(MouseEvent e){URI uri;                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    try {uri = new URI("https://aq.qq.com/cn2/findpsw/pc/pc_find_pwd_input_account?source_id=1003&pt_clientver=5503&pt_src=1&ptlang=2052&aquin=769936084");Desktop dtp = Desktop.getDesktop();if(Desktop.isDesktopSupported()&&dtp.isSupported(Desktop.Action.BROWSE)){try{dtp.browse(uri);} catch(IOException e1){e1.printStackTrace();}}} catch(URISyntaxException e1){e1.printStackTrace();}}              public void mouseEntered(MouseEvent e){jl3.setForeground(Color.red);}public void mouseExited(MouseEvent e){jl3.setForeground(Color.blue);}});jl3.setBounds(260,130,70,20);jc1 = new JCheckBox("记住密码");jc1.setBounds(185,160,80,15);jc2 = new JCheckBox("自动登录");jc2.setBounds(105,160,80,15);jcb = new JComboBox();jcb.addItem("在线");jcb.addItem("隐身");jcb.addItem("离开");jcb.addItem("忙碌");jcb.setBounds(40,160,55,20);but = new JButton("登陆");but.setBounds(130,180,100,30);jf.add(jl1);jf.add(jl2);jf.add(jl3);jf.add(jc1);jf.add(jc2);jf.add(jcb);jf.add(but);jf.add(username);jf.add(password);jf.setVisible(true);}}