This post indicates how you can generate passwords with JAVA swing. Nowadays we need more secure passwords with numbers, letters and special characters. The end result of this post is shown below.
Java Code:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 | import java.awt.event.ActionEvent; import java.awt.Component; import java.awt.event.ActionListener; import javax.swing.SpinnerModel; import javax.swing.SpinnerNumberModel; import javax.swing.JCheckBox; import javax.swing.JPanel; import javax.swing.JLabel; import javax.swing.JSpinner; import javax.swing.JTextField; import javax.swing.JButton; import javax.swing.JFrame; public class PasswordGenerator { private JFrame frame; private JButton generateButton; private JTextField passwordField; private JSpinner passwordLengthSpinner; private JLabel passwordLabel; private JLabel spinnerLabel; private JPanel panelOne; private JPanel panelTwo; private JPanel mainPanel; private String password; private int rndNumber; private JCheckBox specialSignCheckBox; private String[] charPool; public PasswordGenerator() { this.password = ""; this.charPool = new String[] { "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", "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", "0", "1", "2", "3", "4", "5", "6", "7", "8", "9", "0", "1", "2", "3", "4", "5", "6", "7", "8", "9", "°", "^", "!", "§", "$", "%", "&", "/", "(", ")", "=", "?", "`", "´", "{", "}", "[", "]", "*", "-", "+", ",", "<", ">", "|", "_", ";", "#", "µ", "~", ".", ":", "'" }; } public String getPassword(final int spinnerValue) { this.password = ""; for (int i = 0; i < spinnerValue; ++i) { if (!this.specialSignCheckBox.isSelected()) { this.rndNumber = (int)(Math.random() * 72.0); this.password = this.password.concat(this.charPool[this.rndNumber]); } else { this.rndNumber = (int)(Math.random() * 105.0); this.password = this.password.concat(this.charPool[this.rndNumber]); } } return this.password; } public static void main(final String[] args) { new PasswordGenerator().setupGui(); } public void setupGui() { this.frame = new JFrame("Password Generator"); this.panelOne = new JPanel(); this.spinnerLabel = new JLabel("length"); (this.passwordLengthSpinner = new JSpinner()).setModel(new SpinnerNumberModel(6, 6, 256, 1)); (this.generateButton = new JButton("Generate")).addActionListener(new GenerateButtonListener()); this.panelOne.add(this.generateButton); this.panelOne.add(this.spinnerLabel); this.panelOne.add(this.passwordLengthSpinner); this.panelTwo = new JPanel(); this.passwordLabel = new JLabel("Password"); this.passwordField = new JTextField(22); this.specialSignCheckBox = new JCheckBox("Add Special Signs to enforce password (/,=?`´}[]*-+<>|_;#µ~.:')"); this.passwordField.setEditable(false); this.panelTwo.add(this.passwordLabel); this.panelTwo.add(this.passwordField); this.panelTwo.add(this.specialSignCheckBox); (this.mainPanel = new JPanel()).add(this.panelOne); this.mainPanel.add(this.panelTwo); this.frame.getContentPane().add(this.mainPanel); this.frame.setDefaultCloseOperation(3); this.frame.setVisible(true); this.frame.setResizable(false); this.frame.pack(); } public class GenerateButtonListener implements ActionListener { @Override public void actionPerformed(final ActionEvent ev) { final int spinnerValue = Integer.parseInt(PasswordGenerator.this.passwordLengthSpinner.getValue().toString()); PasswordGenerator.this.passwordField.setText(PasswordGenerator.this.getPassword(spinnerValue)); } } } |
Output:
