welcome.java

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/*
 * Welcome.java
 *
 * Created on 2008年5月7日, 下午6:42
 */

package javaproject;

import javax.swing.ImageIcon;
import java.io.*;
import javax.swing.JOptionPane;

/**
 *
 * @author  Tian Fengping
 */
public class Welcome extends javax.swing.JFrame {
    
    /** Creates new form Welcome */
    public Welcome() {
        initComponents();
    }

    /** This method is called from within the constructor to
     * initialize the form.
     * WARNING: Do NOT modify this code. The content of this method is
     * always regenerated by the Form Editor.
     */
    // <editor-fold defaultstate="collapsed" desc="Generated Code">//GEN-BEGIN:initComponents
    private void initComponents() {

        welcomeJLabel = new javax.swing.JLabel();
        firstOKJButton = new javax.swing.JButton();
        allJPasswordField = new javax.swing.JPasswordField();
        jLabel1 = new javax.swing.JLabel();

        setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
        setTitle("Welcome");

        welcomeJLabel.setIcon(new ImageIcon("imags/welcome.gif"));

        firstOKJButton.setText("确定");
        firstOKJButton.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                firstOKJButtonActionPerformed(evt);
            }
        });

        jLabel1.setText("Enter Password:");

        javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
        getContentPane().setLayout(layout);
        layout.setHorizontalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup()
                .addGap(187, 187, 187)
                .addComponent(firstOKJButton, javax.swing.GroupLayout.DEFAULT_SIZE, 109, Short.MAX_VALUE)
                .addGap(154, 154, 154))
            .addGroup(layout.createSequentialGroup()
                .addGap(67, 67, 67)
                .addComponent(jLabel1, javax.swing.GroupLayout.PREFERRED_SIZE, 100, javax.swing.GroupLayout.PREFERRED_SIZE)
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, 57, Short.MAX_VALUE)
                .addComponent(allJPasswordField, javax.swing.GroupLayout.PREFERRED_SIZE, 175, javax.swing.GroupLayout.PREFERRED_SIZE)
                .addGap(51, 51, 51))
            .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup()
                .addContainerGap(18, Short.MAX_VALUE)
                .addComponent(welcomeJLabel, javax.swing.GroupLayout.PREFERRED_SIZE, 422, javax.swing.GroupLayout.PREFERRED_SIZE)
                .addContainerGap())
        );
        layout.setVerticalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup()
                .addContainerGap()
                .addComponent(welcomeJLabel, javax.swing.GroupLayout.DEFAULT_SIZE, 280, Short.MAX_VALUE)
                .addGap(18, 18, 18)
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                    .addComponent(jLabel1)
                    .addComponent(allJPasswordField, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                .addComponent(firstOKJButton)
                .addContainerGap())
        );

        pack();
    }// </editor-fold>//GEN-END:initComponents
    
    private void firstOKJButtonActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_firstOKJButtonActionPerformed
        // TODO add your handling code here:
        File passwordFile;
        BufferedReader output;
        String oldPassword="";
        try {
                passwordFile = new File("Password.dat");
                FileReader inputFile = new FileReader(passwordFile);
                output=new BufferedReader(inputFile);
                oldPassword=output.readLine();
            } catch (IOException ex) {
             JOptionPane.showMessageDialog(null,"Make sure your input!");
            }
        if(String.valueOf(allJPasswordField.getPassword()).equals(oldPassword))
        {
          this.setVisible(false);  
          OperationFrame mainFrame=new OperationFrame();
          mainFrame.setVisible(true);
          mainFrame.setLocationRelativeTo(null);
        }
        else
        {
            JOptionPane.showMessageDialog(null,"The password is wrong","Wrong Pssword!",JOptionPane.WARNING_MESSAGE);          
        }
    }//GEN-LAST:event_firstOKJButtonActionPerformed

    /**
     * @param args the command line arguments
     */
    public static void main(String args[]) {
        java.awt.EventQueue.invokeLater(new Runnable() {
            public void run() {
                new Welcome().setVisible(true);
            }
        });
    }
    
    // Variables declaration - do not modify//GEN-BEGIN:variables
    private javax.swing.JPasswordField allJPasswordField;
    private javax.swing.JButton firstOKJButton;
    private javax.swing.JLabel jLabel1;
    private javax.swing.JLabel welcomeJLabel;
    // End of variables declaration//GEN-END:variables
    
}