求大神帮我看看哪里出了问题，关于java图形化的问题
最近学习图形化，编了一个注册窗口。可是只能显示一部分其他的都被挡住了。
程序代码：class Register{ //注册界面
Register()
{
reg = new JFrame("欢迎注册本银行用户");
JLabel namelab = new JLabel("姓名:",JLabel.CENTER);
nameText = new JTextField("",25);
JLabel agelab = new JLabel("年龄:",JLabel.CENTER);
ageText = new JTextField("",25);
JLabel sexlab = new JLabel("性别:",JLabel.CENTER);
sexText = new JTextField("",25);
JLabel worklab = new JLabel("职业:",JLabel.CENTER);
workText = new JTextField("",25);
JLabel addresslab = new JLabel("住址:",JLabel.CENTER);
addressText = new JTextField("",25);
JLabel tellab = new JLabel("联系电话:",JLabel.CENTER);
telText = new JTextField("",25);
JLabel IDcardlab = new JLabel("身份证号:",JLabel.CENTER);
IDcardText = new JTextField("",25);
JPanel userPanel = new JPanel();
userPanel.add(namelab);
userPanel.add(nameText);
userPanel.add(agelab);
userPanel.add(ageText);
userPanel.add(sexlab);
userPanel.add(sexText);
userPanel.add(worklab);
userPanel.add(workText);
userPanel.add(addresslab);
userPanel.add(addressText);
userPanel.add(tellab);
userPanel.add(telText);
userPanel.add(IDcardlab);
userPanel.add(IDcardText);
JButton ok = new JButton("确认");
JButton no = new JButton("取消");
ok.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent e){
}
});
no.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent e){
reg.dispose();
}
});
JPanel buttonPanel = new JPanel();
buttonPanel.add(ok);
buttonPanel.add(no);
reg.setLayout(new GridLayout(7,1));
reg.add(userPanel);
//reg.add(buttonPanel);
reg.setSize(350,700);
reg.setResizable(false);
reg.setLocationRelativeTo(null);
reg.setVisible(true);
}
private JFrame reg;
private JTextField nameText; //姓名
private JTextField ageText; //年龄
private JTextField sexText; //性别
private JTextField workText; //职业
private JTextField addressText; //地址
private JTextField telText; //联系电话
private JTextField IDcardText; //身份证号
}
