Java by API/java.awt/Cursor

Cursor.CROSSHAIR_CURSOR

  
import java.awt.Color;
import java.awt.Cursor;
import java.awt.Toolkit;
import javax.swing.JFrame;
public class MainClass {
  public static void main(String[] args) {
    JFrame aWindow = new JFrame();
    aWindow.setBounds(200, 200, 200, 200);
    aWindow.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    aWindow.setCursor(Cursor.getPredefinedCursor(Cursor.CROSSHAIR_CURSOR));
    aWindow.getContentPane().setBackground(Color.PINK);
    aWindow.setVisible(true);
  }
}

Cursor.DEFAULT_CURSOR

  
import java.awt.Container;
import java.awt.Cursor;
import java.awt.Point;
import java.awt.event.MouseEvent;
import javax.swing.ImageIcon;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JScrollPane;
import javax.swing.JViewport;
import javax.swing.event.MouseInputAdapter;
public class Main extends JFrame {
  public Main() {
    super("Grab and drag Demo");
    ImageIcon ii = new ImageIcon("largejexpLogo.jpg");
    JScrollPane jsp = new JScrollPane(new GrabAndScrollLabel(ii));
    getContentPane().add(jsp);
    setSize(300, 250);
    setVisible(true);
    super.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
  }
  public static void main(String[] args) {
    new Main();
  }
}
class GrabAndScrollLabel extends JLabel {
  public GrabAndScrollLabel(ImageIcon i) {
    super(i);
    MouseInputAdapter mia = new MouseInputAdapter() {
      int xDiff, yDiff;
      Container c;
      public void mouseDragged(MouseEvent e) {
        c = GrabAndScrollLabel.this.getParent();
        if (c instanceof JViewport) {
          JViewport jv = (JViewport) c;
          Point p = jv.getViewPosition();
          int newX = p.x - (e.getX() - xDiff);
          int newY = p.y - (e.getY() - yDiff);
          int maxX = GrabAndScrollLabel.this.getWidth() - jv.getWidth();
          int maxY = GrabAndScrollLabel.this.getHeight() - jv.getHeight();
          if (newX < 0)
            newX = 0;
          if (newX > maxX)
            newX = maxX;
          if (newY < 0)
            newY = 0;
          if (newY > maxY)
            newY = maxY;
          jv.setViewPosition(new Point(newX, newY));
        }
      }
      public void mousePressed(MouseEvent e) {
        setCursor(Cursor.getPredefinedCursor(Cursor.MOVE_CURSOR));
        xDiff = e.getX();
        yDiff = e.getY();
      }
      public void mouseReleased(MouseEvent e) {
        setCursor(Cursor.getPredefinedCursor(Cursor.DEFAULT_CURSOR));
      }
    };
    addMouseMotionListener(mia);
    addMouseListener(mia);
  }
}

Cursor: getPredefinedCursor(int type)

  
import java.awt.Color;
import java.awt.Cursor;
import java.awt.Toolkit;
import javax.swing.JFrame;
public class MainClass {
  public static void main(String[] args) {
    JFrame aWindow = new JFrame();
    aWindow.setBounds(200, 200, 200, 200);
    aWindow.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    aWindow.setCursor(Cursor.getPredefinedCursor(Cursor.CROSSHAIR_CURSOR));
    aWindow.getContentPane().setBackground(Color.PINK);
    aWindow.setVisible(true);
  }
}

Cursor.HAND_CURSOR

  
import java.awt.Cursor;
import javax.swing.JFrame;
import javax.swing.SwingUtilities;
public class Main extends JFrame {
  public static void main(String[] args) {
    SwingUtilities.invokeLater(new Runnable() {
      public void run() {
        Main mainForm = new Main();
        mainForm.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        mainForm.setSize(250, 250);
        Cursor cursor = new Cursor(Cursor.HAND_CURSOR);
        mainForm.setCursor(cursor);
        mainForm.pack();
        mainForm.setVisible(true);
      }
    });
  }
}

Cursor.MOVE_CURSOR

  
import java.awt.Container;
import java.awt.Cursor;
import java.awt.Point;
import java.awt.event.MouseEvent;
import javax.swing.ImageIcon;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JScrollPane;
import javax.swing.JViewport;
import javax.swing.event.MouseInputAdapter;
public class Main extends JFrame {
  public Main() {
    super("Grab and drag Demo");
    ImageIcon ii = new ImageIcon("largejexpLogo.jpg");
    JScrollPane jsp = new JScrollPane(new GrabAndScrollLabel(ii));
    getContentPane().add(jsp);
    setSize(300, 250);
    setVisible(true);
    super.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
  }
  public static void main(String[] args) {
    new Main();
  }
}
class GrabAndScrollLabel extends JLabel {
  public GrabAndScrollLabel(ImageIcon i) {
    super(i);
    MouseInputAdapter mia = new MouseInputAdapter() {
      int xDiff, yDiff;
      Container c;
      public void mouseDragged(MouseEvent e) {
        c = GrabAndScrollLabel.this.getParent();
        if (c instanceof JViewport) {
          JViewport jv = (JViewport) c;
          Point p = jv.getViewPosition();
          int newX = p.x - (e.getX() - xDiff);
          int newY = p.y - (e.getY() - yDiff);
          int maxX = GrabAndScrollLabel.this.getWidth() - jv.getWidth();
          int maxY = GrabAndScrollLabel.this.getHeight() - jv.getHeight();
          if (newX < 0)
            newX = 0;
          if (newX > maxX)
            newX = maxX;
          if (newY < 0)
            newY = 0;
          if (newY > maxY)
            newY = maxY;
          jv.setViewPosition(new Point(newX, newY));
        }
      }
      public void mousePressed(MouseEvent e) {
        setCursor(Cursor.getPredefinedCursor(Cursor.MOVE_CURSOR));
        xDiff = e.getX();
        yDiff = e.getY();
      }
      public void mouseReleased(MouseEvent e) {
        setCursor(Cursor.getPredefinedCursor(Cursor.DEFAULT_CURSOR));
      }
    };
    addMouseMotionListener(mia);
    addMouseListener(mia);
  }
}

Cursor.NE_RESIZE_CURSOR

  
import java.awt.Cursor;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JButton;
import javax.swing.JFrame;
public class Main implements Runnable, ActionListener {
  private boolean animate;
  private Cursor[] cursors = new Cursor[] { Cursor.getPredefinedCursor(Cursor.N_RESIZE_CURSOR),
      Cursor.getPredefinedCursor(Cursor.NE_RESIZE_CURSOR) };
  private JFrame frame;
  public Main(JFrame frame) {
    animate = false;
    this.frame = frame;
  }
  public void run() {
    int count = 0;
    while (animate) {
      try {
        Thread.currentThread().sleep(200);
      } catch (Exception ex) {
      }
      frame.setCursor(cursors[count % cursors.length]);
      count++;
    }
    frame.setCursor(Cursor.getPredefinedCursor(Cursor.DEFAULT_CURSOR));
  }
  public void actionPerformed(ActionEvent evt) {
    JButton button = (JButton) evt.getSource();
    if (animate) {
      button.setText("Start Animation");
      animate = false;
    } else {
      animate = true;
      button.setText("Stop Animation");
      new Thread(this).start();
    }
  }
  public static void main(String[] args) {
    JFrame frame = new JFrame();
    JButton button = new JButton("Start Animation");
    button.addActionListener(new Main(frame));
    frame.getContentPane().add(button);
    frame.setSize(300, 300);
    frame.setVisible(true);
  }
  public static void p(String str) {
    System.out.println(str);
  }
}