diff --git a/java/2-2-JavaGUI/BasicForm1.java b/java/2-2-JavaGUI/BasicForm1.java
new file mode 100644
index 0000000000000000000000000000000000000000..2d50de84624b56824a1e3e3417862641c5900bfb
--- /dev/null
+++ b/java/2-2-JavaGUI/BasicForm1.java
@@ -0,0 +1,26 @@
+
+import javax.swing.*;
+
+// Create a simple form
+public class BasicForm1 {
+ public static void main(String[] args) {
+ // create a window
+ JFrame frame = new JFrame("Window Demo");
+ frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
+
+ // create a panel and add components
+ JPanel panel = new JPanel();
+ JButton button = new JButton("Ok");
+ panel.add(button);
+
+ // add panel to the window
+ frame.add(panel);
+
+ // set window behaviour and display it
+ frame.setResizable(false);
+ frame.setSize(200, 200);
+ // frame.pack();
+ frame.setVisible(true);
+ }
+}
+
diff --git a/java/2-2-JavaGUI/BasicForm2.java b/java/2-2-JavaGUI/BasicForm2.java
new file mode 100644
index 0000000000000000000000000000000000000000..d5dc90bb7154978125f1bb52958784179e404455
--- /dev/null
+++ b/java/2-2-JavaGUI/BasicForm2.java
@@ -0,0 +1,56 @@
+
+import javax.swing.*;
+import javax.swing.event.MouseInputListener;
+import java.awt.event.MouseEvent;
+
+// Create a simple form
+// Adds a listener
+public class BasicForm2 {
+
+ public static void main(String[] args) {
+ // create a window
+ JFrame frame = new JFrame("Window Demo");
+ frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
+
+ // create a panel and add components
+ JPanel panel = new JPanel();
+ JButton button = new JButton("Ok");
+ button.addMouseListener(new MyMouseListener());
+ panel.add(button);
+
+ // add panel to the window
+ frame.add(panel);
+
+ // set window behaviour and display it
+ frame.setResizable(false);
+ frame.setSize(200, 200);
+ // frame.pack();
+ frame.setVisible(true);
+ }
+
+ // create a custom listener for my ok button
+ static class MyMouseListener implements MouseInputListener {
+ @Override
+ public void mouseClicked(MouseEvent e) {
+ System.exit(1);
+ }
+
+ @Override
+ public void mousePressed(MouseEvent e) { }
+
+ @Override
+ public void mouseReleased(MouseEvent e) { }
+
+ @Override
+ public void mouseEntered(MouseEvent e) { }
+
+ @Override
+ public void mouseExited(MouseEvent e) { }
+
+ @Override
+ public void mouseDragged(MouseEvent e) { }
+
+ @Override
+ public void mouseMoved(MouseEvent e) { }
+ }
+}
\ No newline at end of file
diff --git a/java/2-2-JavaGUI/BasicForm3.java b/java/2-2-JavaGUI/BasicForm3.java
new file mode 100644
index 0000000000000000000000000000000000000000..d0369640604be6cc764e011119fdf10d96479f0e
--- /dev/null
+++ b/java/2-2-JavaGUI/BasicForm3.java
@@ -0,0 +1,40 @@
+
+import javax.swing.*;
+import javax.swing.event.MouseInputListener;
+import java.awt.event.MouseAdapter;
+import java.awt.event.MouseEvent;
+import java.awt.event.MouseMotionListener;
+
+// Create a simple form
+// Converts listener to adapter
+public class BasicForm3 {
+
+ public static void main(String[] args) {
+ // create a window
+ JFrame frame = new JFrame("Window Demo");
+ frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
+
+ // create a panel and add components
+ JPanel panel = new JPanel();
+ JButton button = new JButton("Ok");
+ button.addMouseListener(new MyMouseAdapter());
+ panel.add(button);
+
+ // add panel to the window
+ frame.add(panel);
+
+ // set window behaviour and display it
+ frame.setResizable(false);
+ frame.setSize(200, 200);
+ // frame.pack();
+ frame.setVisible(true);
+ }
+
+ // create a custom adapter from MouseAdapter base class
+ static class MyMouseAdapter extends MouseAdapter {
+ public void mouseClicked(MouseEvent e) {
+ System.exit(1);
+ }
+ }
+}
+
diff --git a/java/2-2-JavaGUI/BasicForm4.java b/java/2-2-JavaGUI/BasicForm4.java
new file mode 100644
index 0000000000000000000000000000000000000000..84d5fa5e43c33c0373b66ed0f83dc3186fdd2acf
--- /dev/null
+++ b/java/2-2-JavaGUI/BasicForm4.java
@@ -0,0 +1,44 @@
+
+import javax.swing.*;
+import javax.swing.event.MouseInputListener;
+import java.awt.event.MouseAdapter;
+import java.awt.event.MouseEvent;
+import java.awt.event.MouseMotionListener;
+
+// Create a simple form
+// Converts adapter to anonymous inner class
+public class BasicForm4 {
+
+ public static void main(String[] args) {
+ // create a window
+ JFrame frame = new JFrame("Window Demo");
+ frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
+
+ // create a panel and add components
+ JPanel panel = new JPanel();
+ JButton button = new JButton("Ok");
+ button.addMouseListener(new MouseAdapter() {
+ public void mouseClicked(MouseEvent e) { // use anonymous inner class instead of MyMouseAdapter class
+ System.exit(1);
+ }});
+ panel.add(button);
+
+ // add panel to the window
+ frame.add(panel);
+
+ // set window behaviour and display it
+ frame.setResizable(false);
+ frame.setSize(200, 200);
+ // frame.pack();
+ frame.setVisible(true);
+ }
+
+// We do not need to implement a custom adapter
+/* // create a custom adapter from MouseAdapter base class
+ static class MyMouseAdapter extends MouseAdapter {
+ public void mouseClicked(MouseEvent e) {
+ System.exit(1);
+ }
+ }*/
+}
+
diff --git a/java/2-2-JavaGUI/SimpleDraw.java b/java/2-2-JavaGUI/SimpleDraw.java
new file mode 100644
index 0000000000000000000000000000000000000000..5ed4579a7b8fb93d62b73115da7c8f67018b42b9
--- /dev/null
+++ b/java/2-2-JavaGUI/SimpleDraw.java
@@ -0,0 +1,40 @@
+import javax.swing.*;
+import java.awt.Color;
+import java.awt.Graphics;
+import java.awt.Graphics2D;
+import java.awt.BasicStroke;
+import java.awt.RenderingHints;
+
+
+
+// JComponent is a base class for custom components
+public class SimpleDraw extends JComponent {
+
+ public static void main(String[] args) {
+ JFrame f = new JFrame("SimpleDraw"); // jframe is the app window
+ f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
+ f.setSize(400, 400); // window size
+
+ SimpleDraw canvas = new SimpleDraw();
+ f.setContentPane(canvas); // add canvas to jframe
+ f.setVisible(true); // show the window
+ }
+
+ // Constructor for SimpleDraw
+ public SimpleDraw() {
+ }
+
+ // custom graphics drawing
+ // this is a method that we overrode from the JComponent class
+ public void paintComponent(Graphics g) {
+ Graphics2D g2 = (Graphics2D) g; // 2D drawing
+ g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING,
+ RenderingHints.VALUE_ANTIALIAS_ON);
+ g2.setStroke(new BasicStroke(32)); // 32 pixels wide
+ g2.setColor(Color.BLUE); // make it blue
+ g2.drawLine(0, 0, getWidth(), getHeight()); // draw line
+ g2.setColor(Color.RED);
+ g2.drawLine(getWidth(), 0, 0, getHeight());
+ }
+}
+
diff --git a/java/2-2-JavaGUI/SimpleDraw2.java b/java/2-2-JavaGUI/SimpleDraw2.java
new file mode 100644
index 0000000000000000000000000000000000000000..cffb3ecb34b4040ad1692f6369f3fcbdb336864b
--- /dev/null
+++ b/java/2-2-JavaGUI/SimpleDraw2.java
@@ -0,0 +1,61 @@
+import javax.swing.*;
+import java.awt.Color;
+import java.awt.Graphics;
+import java.awt.Graphics2D;
+import java.awt.BasicStroke;
+import java.awt.RenderingHints;
+import java.awt.event.*;
+
+
+// JComponent is a base class for custom components
+public class SimpleDraw2 extends JComponent {
+
+ public static void main(String[] args) {
+ JFrame f = new JFrame("SimpleDraw"); // jframe is the app window
+ f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
+ f.setSize(400, 400); // window size
+
+ SimpleDraw2 canvas = new SimpleDraw2();
+ f.setContentPane(canvas); // add canvas to jframe
+ f.setVisible(true); // show the window
+ }
+
+ // Object properties
+ private int mouseX;
+ private int mouseY;
+
+ // Constructor for SimpleDraw
+ public SimpleDraw2() {
+ this.addMouseMotionListener( new MyMotionListener() );
+ }
+
+ // custom graphics drawing
+ public void paintComponent(Graphics g) {
+ Graphics2D g2 = (Graphics2D) g; // cast to get 2D drawing methods
+ g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING, // antialiasing look nicer
+ RenderingHints.VALUE_ANTIALIAS_ON);
+ g2.setStroke(new BasicStroke(32)); // 32 pixel thick stroke
+ g2.setColor(Color.BLUE); // make it blue
+ g2.drawLine(0, 0, getWidth(), getHeight()); // draw line
+ g2.setColor(Color.RED);
+ g2.drawLine(getWidth(), 0, 0, getHeight());
+
+ String label = "Mouse at (" + mouseX + ", " + mouseY + ")";
+ g2.setColor(Color.BLACK);
+ g2.drawString(label, 130, 40);
+ }
+
+ // Inner class for handling mouse motion events
+ private class MyMotionListener implements MouseMotionListener {
+ public void mouseMoved(MouseEvent e) {
+ mouseX = e.getX();
+ mouseY = e.getY();
+ repaint();
+ }
+
+ public void mouseDragged(MouseEvent e) {
+ // Do nothing.
+ // But we still need this method implemented because it's part of the interface
+ }
+ }
+}
diff --git a/java/2-2-JavaGUI/SimpleDraw3.java b/java/2-2-JavaGUI/SimpleDraw3.java
new file mode 100644
index 0000000000000000000000000000000000000000..0e8141ca0ac6d004a78bee2834593162548619ce
--- /dev/null
+++ b/java/2-2-JavaGUI/SimpleDraw3.java
@@ -0,0 +1,67 @@
+import javax.swing.*;
+import java.awt.Color;
+import java.awt.Graphics;
+import java.awt.Graphics2D;
+import java.awt.BasicStroke;
+import java.awt.RenderingHints;
+import java.awt.event.*;
+
+
+// JComponent is a base class for custom components
+public class SimpleDraw3 extends JComponent {
+
+ public static void main(String[] args) {
+ JFrame f = new JFrame("SimpleDraw"); // jframe is the app window
+ f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
+ f.setSize(400, 400); // window size
+
+ SimpleDraw3 canvas = new SimpleDraw3();
+ f.setContentPane(canvas); // add canvas to jframe
+ f.setVisible(true); // show the window
+ }
+
+ // Object properties
+ private int mouseX;
+ private int mouseY;
+
+ // Constructor for SimpleDraw
+ public SimpleDraw3() {
+ this.addMouseMotionListener( new MyMotionListener() );
+ }
+
+ // custom graphics drawing
+ public void paintComponent(Graphics g) {
+ Graphics2D g2 = (Graphics2D) g; // cast to get 2D drawing methods
+ g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING, // antialiasing look nicer
+ RenderingHints.VALUE_ANTIALIAS_ON);
+ g2.setStroke(new BasicStroke(32)); // 32 pixel thick stroke
+ g2.setColor(Color.BLUE); // make it blue
+ g2.drawLine(0, 0, getWidth(), getHeight()); // draw line
+ g2.setColor(Color.RED);
+ g2.drawLine(getWidth(), 0, 0, getHeight());
+
+ String label = "Mouse at (" + mouseX + ", " + mouseY + ")";
+ g2.setColor(Color.BLACK);
+ g2.drawString(label, 130, 40);
+ }
+
+ // Inner class for handling mouse motion events
+ private class MyMotionListener extends MouseMotionAdapter {
+ public void mouseMoved(MouseEvent e) {
+ mouseX = e.getX();
+ mouseY = e.getY();
+ repaint();
+ }
+
+ // Notice the difference?
+ // We implemented the MotionListener using an adapter instead of an interface
+ // This allows is to ignore methods we don't want!
+
+ /*
+ public void mouseDragged(MouseEvent e) {
+ // Do nothing.
+ // But we still need this method implemented because it's part of the interface
+ }
+ */
+ }
+}
diff --git a/java/2-2-JavaGUI/SimpleDraw4.java b/java/2-2-JavaGUI/SimpleDraw4.java
new file mode 100644
index 0000000000000000000000000000000000000000..0bd081df2cbb1b4810fdbd20c30c503c384ef698
--- /dev/null
+++ b/java/2-2-JavaGUI/SimpleDraw4.java
@@ -0,0 +1,55 @@
+import javax.swing.*;
+import java.awt.Color;
+import java.awt.Graphics;
+import java.awt.Graphics2D;
+import java.awt.BasicStroke;
+import java.awt.RenderingHints;
+import java.awt.event.*;
+import java.util.Vector;
+
+// JComponent is a base class for custom components
+public class SimpleDraw4 extends JComponent {
+
+ public static void main(String[] args) {
+ JFrame f = new JFrame("SimpleDraw"); // jframe is the app window
+ f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
+ f.setSize(400, 400); // window size
+
+ SimpleDraw4 canvas = new SimpleDraw4();
+ f.setContentPane(canvas); // add canvas to jframe
+ f.setVisible(true); // show the window
+ }
+
+ // Object properties
+ private int mouseX;
+ private int mouseY;
+
+ // Constructor for SimpleDraw
+ public SimpleDraw4() {
+
+ // this is an example of an anonymous inner class
+ this.addMouseMotionListener( new MouseAdapter() {
+ public void mouseMoved(MouseEvent e) {
+ mouseX = e.getX();
+ mouseY = e.getY();
+ repaint();
+ }
+ });
+ }
+
+ // custom graphics drawing
+ public void paintComponent(Graphics g) {
+ Graphics2D g2 = (Graphics2D) g; // cast to get 2D drawing methods
+ g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING, // antialiasing look nicer
+ RenderingHints.VALUE_ANTIALIAS_ON);
+ g2.setStroke(new BasicStroke(32)); // 32 pixel thick stroke
+ g2.setColor(Color.BLUE); // make it blue
+ g2.drawLine(0, 0, getWidth(), getHeight()); // draw line
+ g2.setColor(Color.RED);
+ g2.drawLine(getWidth(), 0, 0, getHeight());
+
+ String label = "Mouse at (" + mouseX + ", " + mouseY + ")";
+ g2.setColor(Color.BLACK);
+ g2.drawString(label, 130, 40);
+ }
+}
diff --git a/java/2-2-JavaGUI/makefile b/java/2-2-JavaGUI/makefile
new file mode 100644
index 0000000000000000000000000000000000000000..0938cfc46625d902333214a6fb146f5cafd17802
--- /dev/null
+++ b/java/2-2-JavaGUI/makefile
@@ -0,0 +1,15 @@
+# super simple makefile
+# call it using 'make NAME=name_of_code_file_without_extension'
+# (assumes a .java extension)
+NAME = "BasicForm1"
+
+all:
+ @echo "Compiling..."
+ javac *.java
+
+run: all
+ @echo "Running..."
+ java $(NAME)
+
+clean:
+ rm -rf $(NAME).class