CheckBox programs 65

Author: amartid

src/CheckBox62/Gui.java

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+package CheckBox62;
+import java.awt.FlowLayout;
+import java.awt.event.ActionListener;
+import java.awt.event.ActionEvent;
+import javax.swing.JFrame;
+import javax.swing.JButton;
+import javax.swing.Icon;
+import javax.swing.ImageIcon;
+import javax.swing.JOptionPane;
+public class Gui extends JFrame{ //inherits everything from JFrame
+    private JButton reg;
+    private JButton custom;
+
+    //constructor
+    public Gui(){
+        super("The title");
+        setLayout(new FlowLayout()); // default Layout
+        reg = new JButton("reg Button");
+        add(reg);
+        Icon b = new ImageIcon(getClass().getResource("b.png"));
+        Icon x = new ImageIcon(getClass().getResource("x.png"));
+        custom = new JButton("Custom", b);
+        custom.setRolloverIcon(x);
+        add(custom);
+
+        HandlerClass handler = new HandlerClass();
+        reg.addActionListener(handler);
+        custom.addActionListener(handler);
+    }
+    private class HandlerClass implements ActionListener{
+        //implements means uses methods but has to overwrite them!
+        public void actionPerformed(ActionEvent event){
+            JOptionPane.showMessageDialog(null,String.format("%s",event.getActionCommand()));
+        }
+    }
+
+}

src/CheckBox62/b.png

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+package CheckBox62;
+import java.awt.FlowLayout;
+import java.awt.event.ActionListener;
+import java.awt.event.ActionEvent;
+import javax.swing.JFrame;
+import javax.swing.JButton;
+import javax.swing.Icon;
+import javax.swing.ImageIcon;
+import javax.swing.JOptionPane;
+
+class checkBox {
+    public static void main(String[] args){
+        Gui go = new Gui();
+        go.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
+        go.setSize(300,250);
+        go.setVisible(true);
+    }
+
+}

src/CheckBox62/checkBox.java

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+package CheckBox64;
+
+import javax.swing.*;
+import java.awt.*;
+import java.awt.event.*;
+import java.util.logging.Handler;
+
+public class Gui extends JFrame { //inherits everything from JFrame
+    private JTextField tf;
+    private JCheckBox boldbox;
+    private JCheckBox italicbox;
+
+    public Gui() {
+        super("the title");
+        setLayout(new FlowLayout());
+        tf = new JTextField("This is a sentence", 20);
+        tf.setFont(new Font("Serif", Font.PLAIN, 14));
+        add(tf);
+        boldbox = new JCheckBox("bold");
+
+        italicbox = new JCheckBox("italic");
+        add(boldbox);
+        add(italicbox);
+        HandlerClass handler = new HandlerClass();
+        boldbox.addItemListener(handler);
+        italicbox.addItemListener(handler);
+    }
+
+    private class HandlerClass implements ItemListener { //when implement should overwrite all methods !
+        public void itemStateChanged(ItemEvent event) {
+            Font font = null;
+            if (boldbox.isSelected() && italicbox.isSelected())
+                font = new Font("Serif", Font.BOLD + Font.ITALIC, 14);
+            else if (boldbox.isSelected())
+                font = new Font("Serif", Font.BOLD, 14);
+            else if (italicbox.isSelected())
+                font = new Font("Serif", Font.ITALIC, 14);
+            else
+                font = new Font("Serif", Font.PLAIN, 14);
+            tf.setFont(font);
+        }
+    }
+}

src/CheckBox62/x.png

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+package CheckBox64;
+
+import javax.swing.*;
+
+class checkBox {
+    public static void main(String[] args){
+        Gui go = new Gui();
+        go.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
+        go.setSize(250,100);
+        go.setVisible(true);
+    }
+
+}