Hi I made a small program with eclipse and I am trying to send it to another friends computer so they can use the program as well. I found a straight forward tutorial on the internet at: How to distribute java project built in Eclipse? and the guys solution was:
You can right-click the project, select Export and choose Java, then JAR as the format.
However when I did just that and tried sending it to a friends computer they got this error:
Could not find the main class: pisavior.PISavior Program will now exit.
I tried exporting it as a runnable jar file and plain jar file. Neither worked. I think the problem may be with my main class? Maybe its not being read? Or possibly the libraries aren't being sent? Can anyone give me some direction please? Much appreciated!
this is my code, kinda long...
import java.awt.*;
import java.awt.event.*;
import java.io.*;
import java.util.*;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.swing.*;
public class PISavior implements MouseListener {
Random random = new Random();
private static int amount;
private static int editLine;
private static String locations[];
private static String usernames[];
private static String passwords[];
private final char LOWERCASE[] =
{
'a', 'b', 'c', 'd', 'e',
'f', 'g', 'h', 'i', 'j',
'k', 'l', 'm', 'n', 'o',
'p', 'q', 'r', 's', 't',
'u', 'v', 'w', 'x', 'y',
'z'
};
private final char UPPERCASE[] =
{
'A', 'B', 'C', 'D', 'E',
'F', 'G', 'H', 'I', 'J',
'K', 'L', 'M', 'N', 'O',
'P', 'Q', 'R', 'S', 'T',
'U', 'V', 'W', 'X', 'Y',
'Z'
};
private final char NUMBERS[] =
{
'0', '1', '2', '3', '4',
'5', '6', '7', '8', '9'
};
private static volatile boolean edit = false;
JFrame frame = new JFrame();
JPanel panel = new JPanel();
JCheckBox jcb_Integers = new JCheckBox("Integers");
JCheckBox jcb_Capitals = new JCheckBox("Capitals");
JScrollPane jscroll;
JLabel jlb_Location = new JLabel("Location");
JLabel jlb_Username = new JLabel("Username");
JLabel jlb_Password = new JLabel("Password");
JLabel jlb_Amount = new JLabel("Amount:");
JLabel jlb_Length = new JLabel("Length:");
JLabel jlb_Locations[];
JLabel jlb_Usernames[];
JLabel jlb_Passwords[];
JButton jbt_AddLocation = new JButton("Add Location");
JButton jbt_Save = new JButton("Save");
JButton jbt_Add = new JButton("Add");
JButton jbt_Randomize = new JButton("Randomize");
JButton jbt_Edit = new JButton("Edit");
JTextField jtf_Locations[];
JTextField jtf_Usernames[];
JTextField jtf_Passwords[];
JTextField jtf_Location = new JTextField();
JTextField jtf_Username = new JTextField();
JTextField jtf_Password = new JTextField();
JTextField jtf_Integers = new JTextField();
JTextField jtf_Capitals = new JTextField();
JTextField jtf_Length = new JTextField();
public static void main(String args[]) throws FileNotFoundException{
new PISavior();
}
public PISavior() throws FileNotFoundException{
panel.setLayout(null);
panel.addMouseListener(this);
panel.setBounds(0, 0, 400,400);
load();
addMainUI();
//======================================================================
// ** Main User Interface
//======================================================================
panel.add(jlb_Location);
panel.add(jlb_Username);
panel.add(jlb_Password);
jbt_AddLocation.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
edit = false;
removeMainUI();
addLocationUI();
panel.repaint();
}
});
jbt_Save.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
try {
save();
} catch (IOException ex) {
Logger.getLogger(PISavior.class.getName()).log(Level.SEVERE, null, ex);
}
}
});
//======================================================================
// ** Add Location User Interface
//======================================================================
jtf_Location.setBounds(5, 25, 100, 20);
jtf_Username.setBounds(5, 65, 100, 20);
jtf_Password.setBounds(5, 105, 100, 20);
jlb_Amount.setBounds(210, 10, 100, 20);
jcb_Integers.setBounds(130, 30, 80, 20);
jcb_Integers.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
jtf_Integers.setEnabled(jcb_Integers.isSelected());
}
});
jcb_Capitals.setBounds(130, 60, 80, 20);
jcb_Capitals.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
jtf_Capitals.setEnabled(jcb_Capitals.isSelected());
}
});
jtf_Integers.setBounds(210, 30, 50, 20);
jtf_Integers.setEnabled(false);
jtf_Integers.setText("0");
jtf_Capitals.setBounds(210, 60, 50, 20);
jtf_Capitals.setEnabled(false);
jtf_Capitals.setText("0");
jlb_Length.setBounds(135, 90, 80, 20);
jtf_Length.setBounds(210, 90, 50, 20);
jtf_Length.setText("0");
jbt_Randomize.setBounds(140, 120, 100, 20);
jbt_Randomize.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
int length = Integer.parseInt(jtf_Length.getText());
int integers = Integer.parseInt(jtf_Integers.getText());
int capitals = Integer.parseInt(jtf_Capitals.getText());
if (length != 0 && length >= (integers + capitals)) {
jtf_Password.setText(getRandomPassword(length, jcb_Integers.isSelected() != false ? integers : 0, jcb_Capitals.isSelected() != false ? capitals : 0));
}
}
});
jbt_Add.setBounds(20, 135, 60, 15);
jbt_Add.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
addInformation(jtf_Location.getText().length() == 0 ? "(Empty)" : jtf_Location.getText(), jtf_Username.getText().length() == 0 ? "(Empty)" : jtf_Username.getText(), jtf_Password.getText().length() == 0 ? "(Empty)" : jtf_Password.getText());
jtf_Location.setText("");
jtf_Username.setText("");
jtf_Password.setText("");
removeLocationUI();
addMainUI();
panel.repaint();
}
});
jbt_Edit.setBounds(20, 135, 60, 15);
jbt_Edit.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
int i = editLine;
locations[i] = jtf_Location.getText();
usernames[i] = jtf_Username.getText();
passwords[i] = jtf_Password.getText();
jlb_Locations[i].setText(locations[i]);
jlb_Usernames[i].setText(usernames[i]);
jlb_Passwords[i].setText(passwords[i]);
jtf_Location.setText("");
jtf_Username.setText("");
jtf_Password.setText("");
removeLocationUI();
addMainUI();
panel.repaint();
}
});
jscroll = new JScrollPane(panel);
frame.setTitle("Personal Information Savior");
frame.setSize(300,240);
frame.setContentPane(jscroll);
frame.setLocationRelativeTo(null);
frame.setVisible(true);
frame.setResizable(false);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
}
public void removeMainUI() {
if (amount != 0) {
for (int i = 0; i < amount; i++) {
panel.remove(jlb_Locations[i]);
panel.remove(jlb_Usernames[i]);
panel.remove(jlb_Passwords[i]);
}
}
panel.remove(jbt_AddLocation);
panel.remove(jbt_Save);
panel.repaint();
}
public void addMainUI() {
jlb_Location.setBounds(10, 5, 100, 20);
jlb_Username.setBounds(100, 5, 100, 20);
jlb_Password.setBounds(200, 5, 100, 20);
jbt_AddLocation.setBounds(75, (20 * amount) + 25, 110, 15);
jbt_Save.setBounds(90, (20 * amount) + 45, 80, 15);
jlb_Location.setText("Location");
jlb_Username.setText("Username");
jlb_Password.setText("Password");
panel.setPreferredSize(new Dimension(200, amount * 30));
if (amount != 0) {
for (int i = 0; i < amount; i++) {
jlb_Locations[i].setBounds(10, 25 + (i * 20), 100, 20);
jlb_Usernames[i].setBounds(100, 25 + (i * 20), 100, 20);
jlb_Passwords[i].setBounds(200, 25 + (i * 20), 100, 20);
panel.add(jlb_Locations[i]);
panel.add(jlb_Usernames[i]);
panel.add(jlb_Passwords[i]);
}
}
panel.add(jbt_AddLocation);
panel.add(jbt_Save);
panel.repaint();
}
public void removeLocationUI() {
panel.remove(jtf_Location);
panel.remove(jtf_Username);
panel.remove(jtf_Password);
panel.remove(jlb_Amount);
panel.remove(jcb_Integers);
panel.remove(jcb_Capitals);
panel.remove(jtf_Integers);
panel.remove(jtf_Capitals);
panel.remove(jlb_Length);
panel.remove(jtf_Length);
panel.remove(jbt_Randomize);
panel.remove(jbt_Add);
panel.remove(jbt_Edit);
panel.repaint();
}
public void addLocationUI() {
if (!edit) {
jlb_Location.setText("New Location:");
jlb_Location.setBounds(5, 5, 100, 20);
jlb_Username.setText("New Username:");
jlb_Username.setBounds(5, 45, 100, 20);
jlb_Password.setText("New Password:");
jlb_Password.setBounds(5, 85, 100, 20);
panel.add(jtf_Location);
panel.add(jtf_Username);
panel.add(jtf_Password);
panel.add(jlb_Amount);
panel.add(jcb_Integers);
panel.add(jcb_Capitals);
panel.add(jtf_Integers);
panel.add(jtf_Capitals);
panel.add(jlb_Length);
panel.add(jtf_Length);
panel.add(jbt_Randomize);
panel.add(jbt_Add);
panel.repaint();
} else {
jlb_Location.setText("New Location:");
jlb_Location.setBounds(5, 5, 100, 20);
jlb_Username.setText("New Username:");
jlb_Username.setBounds(5, 45, 100, 20);
jlb_Password.setText("New Password:");
jlb_Password.setBounds(5, 85, 100, 20);
panel.add(jtf_Location);
panel.add(jtf_Username);
panel.add(jtf_Password);
panel.add(jlb_Amount);
panel.add(jcb_Integers);
panel.add(jcb_Capitals);
panel.add(jtf_Integers);
panel.add(jtf_Capitals);
panel.add(jlb_Length);
panel.add(jtf_Length);
panel.add(jbt_Randomize);
panel.add(jbt_Edit);
panel.repaint();
}
}
public String getRandomPassword(int length, int integers, int capitals) {
int lowers = length - (integers + capitals);
String password = "";
String scramble[] = new String[length];
if (capitals != 0) {
for (int i = 0; i < capitals; i++) {
while (true) {
int randomScramble = random.nextInt(length);
if (scramble[randomScramble] == null || scramble[randomScramble].equals("")) {
scramble[randomScramble] = Character.toString(UPPERCASE[random.nextInt(UPPERCASE.length)]);
break;
}
}
}
}
if (integers != 0) {
for (int i = 0; i < integers; i++) {
while (true) {
int randomScramble = random.nextInt(length);
if (scramble[randomScramble] == null || scramble[randomScramble].equals("")) {
scramble[randomScramble] = Character.toString(NUMBERS[random.nextInt(NUMBERS.length)]);
break;
}
}
}
}
for (int i = 0; i < lowers; i++) {
while (true) {
int randomScramble = random.nextInt(length);
if (scramble[randomScramble] == null || scramble[randomScramble].equals("")) {
scramble[randomScramble] = Character.toString(LOWERCASE[random.nextInt(LOWERCASE.length)]);
break;
}
}
}
for (int i = 0; i < length; i++) {
password += scramble[i];
}
return password;
}
public void save() throws IOException {
File dir = new File("C:/PISavior");
if (!dir.exists()) {
dir.mkdir();
}
File myfile = new File("C:/PISavior/myfile.txt");
myfile.delete();
myfile.createNewFile();
PrintWriter output = new PrintWriter(myfile);
output.print(amount + "*");
for (int i = 0; i < amount; i++) {
output.print(locations[i] + "*");
output.print(usernames[i] + "*");
output.print(passwords[i] + "*");
}
output.close();
}
public void load() throws FileNotFoundException {
File myfile = new File("C:/PISavior/myfile.txt");
if (myfile.exists()) {
Scanner input = new Scanner(myfile);
while (input.hasNext())
{
input.useDelimiter("[*]");
amount = input.nextInt();
locations = new String[amount];
usernames = new String[amount];
passwords = new String[amount];
jlb_Locations = new JLabel[amount];
jlb_Usernames = new JLabel[amount];
jlb_Passwords = new JLabel[amount];
for (int i = 0; i < amount; i++) {
locations[i] = input.next();
jlb_Locations[i] = new JLabel(locations[i]);
usernames[i] = input.next();
jlb_Usernames[i] = new JLabel(usernames[i]);
passwords[i] = input.next();
jlb_Passwords[i] = new JLabel(passwords[i]);
}
}
}
}
public void addInformation(String info1, String info2, String info3) {
if (amount == 0) {
amount++;
locations = new String[amount];
usernames = new String[amount];
passwords = new String[amount];
jlb_Locations = new JLabel[amount];
jlb_Usernames = new JLabel[amount];
jlb_Passwords = new JLabel[amount];
locations[0] = info1;
usernames[0] = info2;
passwords[0] = info3;
jlb_Locations[0] = new JLabel(locations[0]);
jlb_Usernames[0] = new JLabel(usernames[0]);
jlb_Passwords[0] = new JLabel(passwords[0]);
} else {
String temp1[] = new String[amount];
String temp2[] = new String[amount];
String temp3[] = new String[amount];
for (int i = 0; i < amount; i++) {
temp1[i] = locations[i];
temp2[i] = usernames[i];
temp3[i] = passwords[i];
}
amount++;
locations = new String[amount];
usernames = new String[amount];
passwords = new String[amount];
jlb_Locations = new JLabel[amount];
jlb_Usernames = new JLabel[amount];
jlb_Passwords = new JLabel[amount];
for (int i = 0; i < temp1.length; i++) {
locations[i] = temp1[i];
usernames[i] = temp2[i];
passwords[i] = temp3[i];
jlb_Locations[i] = new JLabel(temp1[i]);
jlb_Usernames[i] = new JLabel(temp2[i]);
jlb_Passwords[i] = new JLabel(temp3[i]);
}
locations[amount-1] = info1;
usernames[amount-1] = info2;
passwords[amount-1] = info3;
jlb_Locations[amount-1] = new JLabel(info1);
jlb_Usernames[amount-1] = new JLabel(info2);
jlb_Passwords[amount-1] = new JLabel(info3);
}
}
@Override
public void mouseReleased(MouseEvent e) {
int y = e.getY();
if (y > 25 && y < (amount * 20) + 25) {
for (int i = 0; i < amount; i++) {
if (y < (i*20) + 45) {
edit = true;
editLine = i;
jtf_Location.setText(locations[i]);
jtf_Username.setText(usernames[i]);
jtf_Password.setText(passwords[i]);
removeMainUI();
addLocationUI();
}
}
}
}
@Override
public void mouseClicked(MouseEvent me) {
}
@Override
public void mousePressed(MouseEvent me) {
}
@Override
public void mouseEntered(MouseEvent me) {
}
@Override
public void mouseExited(MouseEvent me) {
}
}
