//主界面
import javax.swing.*;
import java.awt.event.*;
//import Frame_1;
import javax.swing.ImageIcon;public class LandFrame extends JFrame implements ActionListener
{
static LandFrame frm=new LandFrame();
static JLabel lb0,lb1,lb2;
static JButton bt1=new JButton("确定");
static JButton bt2=new JButton("退出");
static JTextField txf1;
static JPasswordField txf2;
String Account="yangmeiquan";
String Password="2008";
public static void main(String args[])
{
frm.setResizable(false);
frm.setSize(300,300);
frm.setLocation(200,200);
frm.setLayout(null);
lb0=new JLabel("欢迎使用日常财务管理系统");
lb0.setBounds(70,20,200,20);
lb1=new JLabel("帐号:");
lb1.setBounds(40,100,40,20);
lb2=new JLabel("密码:");
lb2.setBounds(40,140,40,20); bt1.setBounds(20,210,60,40);
bt2.setBounds(200,210,60,40); txf1=new JTextField(10);
txf1.setBounds(80,100,180,20);
txf2=new JPasswordField(10);
txf2.setBounds(80,140,180,20);
txf2.setEchoChar('*'); bt1.addActionListener(frm);
bt2.addActionListener(frm); frm.add(lb0);
frm.add(lb1);
frm.add(txf1);
frm.add(lb2);
frm.add(txf2);
frm.add(bt1);
frm.add(bt2);
frm.setDefaultCloseOperation(EXIT_ON_CLOSE);
frm.setVisible(true);
}
public void actionPerformed(ActionEvent e)
{
JButton bt=(JButton)e.getSource();
if(bt==bt2)System.exit(0);
if(bt==bt1)
{
if(txf1.getText().equals(Account)&&txf2.getText().equals(Password))
{
MainFrame frm_1=new MainFrame();
frm_1.setSize(400,400);
Clock clock=new Clock();
frm_1.add(clock,"South");
frm_1.setVisible(true);
frm.setVisible(false);
}
else JOptionPane.showMessageDialog(bt1,"用户名或密码错误!\n请重新输入!","警告",JOptionPane.WARNING_MESSAGE);
} }}
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;import java.util.*;
import java.util.concurrent.*; class Clock extends JPanel implements Runnable
{
private JLabel label = new JLabel();
JPanel panel=new JPanel(); public Clock()
{
label.setFont(new Font("Dialog", Font.BOLD, 22));
flush();
panel.add(label);
ExecutorService exec = Executors.newCachedThreadPool();
exec.execute(this); add(panel,"Center");
} private void flush()
{
String strTime = String.format("%tT", new Date());
label.setText(strTime);
} public void run()
{
while(true)
{
flush();
try {Thread.sleep(1000);} catch(Exception e) {}
}
}
}
import javax.swing.*;
import java.awt.event.*;
//import Frame_1;
import javax.swing.ImageIcon;public class LandFrame extends JFrame implements ActionListener
{
static LandFrame frm=new LandFrame();
static JLabel lb0,lb1,lb2;
static JButton bt1=new JButton("确定");
static JButton bt2=new JButton("退出");
static JTextField txf1;
static JPasswordField txf2;
String Account="yangmeiquan";
String Password="2008";
public static void main(String args[])
{
frm.setResizable(false);
frm.setSize(300,300);
frm.setLocation(200,200);
frm.setLayout(null);
lb0=new JLabel("欢迎使用日常财务管理系统");
lb0.setBounds(70,20,200,20);
lb1=new JLabel("帐号:");
lb1.setBounds(40,100,40,20);
lb2=new JLabel("密码:");
lb2.setBounds(40,140,40,20); bt1.setBounds(20,210,60,40);
bt2.setBounds(200,210,60,40); txf1=new JTextField(10);
txf1.setBounds(80,100,180,20);
txf2=new JPasswordField(10);
txf2.setBounds(80,140,180,20);
txf2.setEchoChar('*'); bt1.addActionListener(frm);
bt2.addActionListener(frm); frm.add(lb0);
frm.add(lb1);
frm.add(txf1);
frm.add(lb2);
frm.add(txf2);
frm.add(bt1);
frm.add(bt2);
frm.setDefaultCloseOperation(EXIT_ON_CLOSE);
frm.setVisible(true);
}
public void actionPerformed(ActionEvent e)
{
JButton bt=(JButton)e.getSource();
if(bt==bt2)System.exit(0);
if(bt==bt1)
{
if(txf1.getText().equals(Account)&&txf2.getText().equals(Password))
{
MainFrame frm_1=new MainFrame();
frm_1.setSize(400,400);
Clock clock=new Clock();
frm_1.add(clock,"South");
frm_1.setVisible(true);
frm.setVisible(false);
}
else JOptionPane.showMessageDialog(bt1,"用户名或密码错误!\n请重新输入!","警告",JOptionPane.WARNING_MESSAGE);
} }}
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;import java.util.*;
import java.util.concurrent.*; class Clock extends JPanel implements Runnable
{
private JLabel label = new JLabel();
JPanel panel=new JPanel(); public Clock()
{
label.setFont(new Font("Dialog", Font.BOLD, 22));
flush();
panel.add(label);
ExecutorService exec = Executors.newCachedThreadPool();
exec.execute(this); add(panel,"Center");
} private void flush()
{
String strTime = String.format("%tT", new Date());
label.setText(strTime);
} public void run()
{
while(true)
{
flush();
try {Thread.sleep(1000);} catch(Exception e) {}
}
}
}
我邮箱,我可以给你思路啊。