Can you give me the source of a Java console application that does the following?

Question

The program is a safe and asks the user for a password in which information will be stored

The program exports a file with the password and the information so that the information can be retrieved if the proper password is provided

The program will start out by asking if you want to open an exsisting safe or create a new one.

Answer 1

That's a fair-sized project. I don't expect anyone is going to do that much coding for you in one shot.

If you have more specific questions, for example about file I/O from Java, then you should ask those instead.

Answer 2

i wrote it using netbean, and i'm not sure if yahoo cuts out some long line or whatever because when I preview it, it looks weird. anyway, if you need the source code, you can email me at [e-mail]

import java.io.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
public class SafeUI extends javax.swing.JFrame implements ActionListener{

/** Creates new form UI */
public UI() {
initComponents();
newFile.addActionListener(this);
saveFile.addActionListener(this);
openFile.addActionListener(this);
}
public void actionPerformed(ActionEvent ae){
if(ae.getSource()==saveFile){
saveFile();
}else if(ae.getSource()==openFile){
openFile();
}else{
newFile();
}
}
//
private void initComponents() {
jScrollPane1 = new javax.swing.JScrollPane();
information = new javax.swing.JTextArea();
password = new javax.swing.JTextField();
saveFile = new javax.swing.JButton();
openFile = new javax.swing.JButton();
newFile = new javax.swing.JButton();
fileName = new javax.swing.JTextField();

setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
setTitle("Peng Wei's Safe");
information.setColumns(20);
information.setRows(5);
information.setText("information:");
jScrollPane1.setViewportView(information);

password.setText("password");

saveFile.setText("Save");

openFile.setText("Open");

newFile.setText("New");

fileName.setText("put your file's name here.");

javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
getContentPane().setLayout(layout);
layout.setHorizontalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addContainerGap()
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(password, javax.swing.GroupLayout.DEFAULT_SIZE, 380, Short.MAX_VALUE)
.addComponent(jScrollPane1, javax.swing.GroupLayout.DEFAULT_SIZE, 380, Short.MAX_VALUE)
.addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup()
.addComponent(fileName, javax.swing.GroupLayout.DEFAULT_SIZE, 187, Short.MAX_VALUE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(saveFile)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(openFile)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(newFile)))
.addContainerGap())
);

layout.linkSize(javax.swing.SwingConstants.HORIZONTAL, new java.awt.Component[] {newFile, openFile});

layout.setVerticalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup()
.addContainerGap()
.addComponent(jScrollPane1, javax.swing.GroupLayout.DEFAULT_SIZE, 223, Short.MAX_VALUE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(password, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(openFile)
.addComponent(newFile)
.addComponent(saveFile)
.addComponent(fileName, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
.addContainerGap())
);
pack();
}//


public static void main(String args[]) {
java.awt.EventQueue.invokeLater(new Runnable() {
public void run() {
new UI().setVisible(true);
}
});
}

public void saveFile(){
FileWriter outputStream = null;
try {
outputStream = new FileWriter(fileName.getText()+".safe");
outputStream.write(password.getText());
outputStream.write("\n");
outputStream.write(information.getText());
if (outputStream != null) {
outputStream.close();
}
}catch(IOException ioe){information.setText("error saving file.");
}
}
public void openFile(){
BufferedReader inputStream = null;
try {
inputStream = new BufferedReader(new FileReader(fileName.getText()+".safe"));
password.setText(inputStream.readLine());
information.setText(inputStream.readLine());
if (inputStream != null) {
inputStream.close();
}
}catch(IOException ioe){information.setText("error reading file.");
}
}
public void newFile(){
password.setText("");
information.setText("");
fileName.setText("");
}
// Variables declaration - do not modify
private javax.swing.JTextField fileName;
private javax.swing.JTextArea information;
private javax.swing.JScrollPane jScrollPane1;
private javax.swing.JButton newFile;
private javax.swing.JButton openFile;
private javax.swing.JTextField password;
private javax.swing.JButton saveFile;
// End of variables declaration

}