src/C14_GUI/ComponentDemo.java

@@ -0,0 +1,7 @@
+package C14_GUI;
+
+public class ComponentDemo {
+	public static void main(String[] args) {
+		DemoJFrame d = new DemoJFrame();
+	}
+}

src/C14_GUI/DemoJFrame.java

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+package C14_GUI;
+
+import java.awt.Color;
+import java.awt.FlowLayout;
+
+import javax.swing.JButton;
+import javax.swing.JFrame;
+import javax.swing.JLabel;
+import javax.swing.JPanel;
+
+class DemoJFrame extends JFrame{
+	DemoJFrame(){
+		this.setTitle("Our first demo");
+
+		// Creating components
+		JLabel jl1 = new JLabel("A text");
+		JButton jb1 = new JButton("Foo");
+		JButton jb2 = new JButton("Bar");
+
+		// Choosing a layout manager for the JFrame
+		FlowLayout fl = new FlowLayout();
+		this.setLayout(fl);
+
+		// Creating the panels for putting the components on
+		JPanel jp1 = new JPanel();
+		jp1.setBackground(Color.BLUE);
+		JPanel jp2 = new JPanel();
+		jp2.setBackground(Color.GREEN);
+
+		// Adding components to panels
+		jp1.add(jl1);
+		jp2.add(jb1);
+		jp2.add(jb2);
+
+		// Adding panels to JFrame
+		this.add(jp1);
+		this.add(jp2);
+
+		this.setSize(300,300);
+		this.setVisible(true);
+	}
+}

src/C14_GUI/EventDemo.java

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+package C14_GUI;
+
+import java.awt.FlowLayout;
+import java.awt.event.ActionEvent;
+import java.awt.event.ActionListener;
+
+import javax.swing.JButton;
+import javax.swing.JFrame;
+import javax.swing.JLabel;
+
+class ButtonListener implements ActionListener{
+	JLabel jl;
+	int nClicks = 0;
+	
+	ButtonListener(JLabel jl){
+		this.jl = jl;
+	}
+	
+	@Override
+	public void actionPerformed(ActionEvent e) {
+		nClicks++;
+		jl.setText("Button clicked " + nClicks + " times");
+	}
+}
+
+public class EventDemo extends JFrame {
+	EventDemo() {
+		setSize(50, 100);
+		setLocation(1500, 600);
+
+		JLabel jl1 = new JLabel("Nothing...");
+		JButton jb1 = new JButton("Click me");
+		
+		ButtonListener bl = new ButtonListener(jl1);
+		jb1.addActionListener(bl);
+		
+//		jb1.addActionListener(new ButtonListener() {
+//			@Override
+//			public void actionPerformed(ActionEvent e) {
+//				jl1.setText("Button clicked !");
+//			}
+//		});
+		
+		this.setLayout(new FlowLayout());
+		
+		this.add(jb1);
+		this.add(jl1);
+
+		this.setVisible(true);
+	}
+
+	public static void main(String[] args) {
+		EventDemo e = new EventDemo();
+		
+	}
+}