Code Snippets

Get name of current method in Java

String methodName = Thread.currentThread().getStackTrace()[1].getMethodName();

java.util.Date = java.text.DateFormat.getDateInstance().parse(date String);

import java.awt.Dimension;

import java.awt.Rectangle;

import java.awt.Robot;

import java.awt.Toolkit;

import java.awt.image.BufferedImage;

import javax.imageio.ImageIO;

import java.io.File;

...

public void captureScreen(String fileName) throws Exception {

   Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();

   Rectangle screenRectangle = new Rectangle(screenSize);

   Robot robot = new Robot();

   BufferedImage image = robot.createScreenCapture(screenRectangle);

   ImageIO.write(image, "png", new File(fileName));

public class Program

  public static void main(String[] args) {

  System.out.println("    @@@@@@@@@@      ");

  System.out.println("   @@@@@@@@@@@@     ");

  System.out.println("  @@@@@@@@@@@@@@    ");

  System.out.println(" @@@@@@@@@@@@@@@@   ");

  System.out.println(" |||||[\"\"\"\"]|||||");

  System.out.println(" |||||[....]|||||");

  System.out.println(" OOOOOOOOOOOOOOOO");

  System.out.println("  OOOOOOOOOOOOOO");

  System.out.println("   OOOOOOOOOOOO");

  System.out.println("    OOOOOOOOOO");

import java.util.Scanner;

public class bucky1 {

  public static void main(String[] args) {

  Scanner bucky = new Scanner(System.in);

/*

To use scanner, I would use code like this

Scanner bucky = new Scanner(System.in);

int i = bucky.nextInt();

To retrieve a username I would probably use:

System.out.println("Enter your username: ");

Scanner scanner = new Scanner(System.in);

String username = scanner.nextLine();

System.out.println("Your username is " + username);

*/

//int can be replaced with other Types like doubles etc.

package localGroup;

import java.awt.EventQueue;

import javax.swing.JFrame;

import javax.swing.JLabel;

import javax.swing.JOptionPane;

import javax.swing.JTextField;

import javax.swing.JPasswordField;

import java.awt.Color;

import java.awt.Component;

import javax.swing.JButton;

import java.awt.event.ActionListener;

import java.awt.event.ActionEvent;

public class UrsaMinorDwarf {

  private JFrame frmLoginWindowAndromeda;

 private JTextField usernameField;

 private JPasswordField passwordField;

/**

  * Launch the application.

*/

 public static void main(String[] args) {

  EventQueue.invokeLater(new Runnable() {

   public void run() {

    try {

     UrsaMinorDwarf window = new UrsaMinorDwarf();

     window.frmLoginWindowAndromeda.setVisible(true);

    } catch (Exception e) {

     e.printStackTrace();

});

/**

  * Create the application.

*/

 public UrsaMinorDwarf() {

  initialize();

/**

  * Initialize the contents of the frame.

*/

 private void initialize() {

  frmLoginWindowAndromeda = new JFrame();

  frmLoginWindowAndromeda.setTitle("Login Window Andromeda");

  frmLoginWindowAndromeda.setForeground(Color.LIGHT_GRAY);

  frmLoginWindowAndromeda.setBackground(Color.RED);

  frmLoginWindowAndromeda.setBounds(100, 100, 450, 300);

  frmLoginWindowAndromeda.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

  frmLoginWindowAndromeda.getContentPane().setLayout(null);

  JLabel lblUsername = new JLabel("UserName");

  lblUsername.setBounds(35, 66, 140, 35);

  frmLoginWindowAndromeda.getContentPane().add(lblUsername);

  JLabel lblPassword = new JLabel("Password");

  lblPassword.setBounds(35, 113, 140, 35);

  frmLoginWindowAndromeda.getContentPane().add(lblPassword);

  usernameField = new JTextField();

  usernameField.setBounds(113, 73, 86, 20);

  frmLoginWindowAndromeda.getContentPane().add(usernameField);

  usernameField.setColumns(10);

  passwordField = new JPasswordField();

  passwordField.setBounds(113, 120, 86, 20);

  frmLoginWindowAndromeda.getContentPane().add(passwordField);

  JButton btnLogin = new JButton("Login");

  btnLogin.addActionListener(new ActionListener() {

   private Component frame;

   public void actionPerformed(ActionEvent args0) {

    String uname = usernameField.getText();

    @SuppressWarnings("deprecation")

    String pswd  = passwordField.getText();

    if (uname.equals("Helios") && pswd.equals("Sun")) {

     JOptionPane.showMessageDialog(frame, "You are a man of the knights watch! May the gods be with you");

    }else {

     JOptionPane.showMessageDialog(frame, "Gandalf: YoU sHalL nOt PaSs!!!!!");

});

  btnLogin.setBounds(262, 227, 89, 23);

  frmLoginWindowAndromeda.getContentPane().add(btnLogin);

import java.awt.*;

import java.awt.image.BufferedImage;

import java.io.IOException;

public class ASCIIArtService {

    public static void main(String[] args) throws IOException {

        int width = 100;

        int height = 30;

        //BufferedImage image = ImageIO.read(new File("/Users/Lordjulius/Desktop/logo.jpg"));

        BufferedImage image = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);

        Graphics g = image.getGraphics();

        g.setFont(new Font("SansSerif", Font.BOLD, 24));

        Graphics2D graphics = (Graphics2D) g;

        graphics.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING,

                RenderingHints.VALUE_TEXT_ANTIALIAS_ON);

        graphics.drawString("Bleep Bloop", 10, 20);

        //save this image

        //ImageIO.write(image, "png", new File("/users/Lordjulius/ascii-art.png"));

        for (int y = 0; y < height; y++) {

            StringBuilder sb = new StringBuilder();

            for (int x = 0; x < width; x++) {

                sb.append(image.getRGB(x, y) == -16777216 ? " " : "$");

            if (sb.toString().trim().isEmpty()) {

                continue;

            System.out.println(sb);

Last updated: November 15, 2017