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lab #6
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‎lab-05/.idea/misc.xml

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‎lab-05/.idea/modules.xml

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‎lab-05/.idea/vcs.xml

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‎lab-05/.idea/workspace.xml

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‎lab-05/lab-05.iml

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‎lab-06-swing/06-_Lab_Assignment_-_APJ_-_GUI_basics_and_Event_Handling.docx

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‎lab-06-swing/Calculator.java

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/*
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By Rustam Zokirov,
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U190049
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Lab: #6
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Calculator Application
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*/
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// import some libraries
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import javax.swing.*;
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import java.awt.*;
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import java.awt.event.*;
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public class Calculator extends JFrame {
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JTextField jtxtField = new JTextField(); // text field
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JButton jbt0Button = new JButton("0"); // some buttons from 0-9
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JButton jbt1Button = new JButton("1");
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JButton jbt2Button = new JButton("2");
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JButton jbt3Button = new JButton("3");
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JButton jbt4Button = new JButton("4");
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JButton jbt5Button = new JButton("5");
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JButton jbt6Button = new JButton("6");
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JButton jbt7Button = new JButton("7");
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JButton jbt8Button = new JButton("8");
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JButton jbt9Button = new JButton("9");
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JButton jbtDeleteButton = new JButton("/"); // operations
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JButton jbtMultiplyButton = new JButton("*");
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JButton jbtMinusButton = new JButton("-");
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JButton jbtPlusButton = new JButton("+");
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JButton jbtEqualButton = new JButton("=");
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JButton jbtDotButton = new JButton(".");
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public Calculator() {
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// Panel for the text field
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JPanel panel_text = new JPanel();
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panel_text.setLayout(new BorderLayout()); // implementing BorderLayout
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panel_text.add(jtxtField, BorderLayout.NORTH);
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// Create a panel to hold buttons
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JPanel panel = new JPanel();
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panel.setLayout(new GridLayout(4, 4)); // implementing GridLayout 4 by 4
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panel.add(jbt7Button);
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panel.add(jbt8Button);
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panel.add(jbt9Button);
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panel.add(jbtDeleteButton);
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panel.add(jbt4Button);
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panel.add(jbt5Button);
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panel.add(jbt6Button);
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panel.add(jbtMultiplyButton);
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panel.add(jbt1Button);
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panel.add(jbt2Button);
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panel.add(jbt3Button);
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panel.add(jbtMinusButton);
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panel.add(jbt0Button);
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panel.add(jbtDotButton);
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panel.add(jbtEqualButton);
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panel.add(jbtPlusButton);
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panel_text.add(panel, BorderLayout.CENTER);
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add(panel_text); // Add panel to the frame
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// Register listeners
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ListenerClass listener = new ListenerClass();
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jbt0Button.addActionListener(listener);
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jbt1Button.addActionListener(listener);
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jbt2Button.addActionListener(listener);
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jbt3Button.addActionListener(listener);
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jbt4Button.addActionListener(listener);
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jbt5Button.addActionListener(listener);
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jbt6Button.addActionListener(listener);
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jbt7Button.addActionListener(listener);
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jbt8Button.addActionListener(listener);
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jbt9Button.addActionListener(listener);
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jbtPlusButton.addActionListener(listener);
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jbtMinusButton.addActionListener(listener);
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jbtMultiplyButton.addActionListener(listener);
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jbtDeleteButton.addActionListener(listener);
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jbtEqualButton.addActionListener(listener);
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jbtDotButton.addActionListener(listener);
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}
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public static void main(String[] args) {
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JFrame frame = new Calculator(); // creating object
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frame.setTitle("Handle Event");
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frame.setSize(200, 200); // set size
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frame.setLocation(200, 100); // set location in window
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frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
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frame.setVisible(true);
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}
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// ListenerClass - Inner Class for handing the actions
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class ListenerClass implements ActionListener {
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char operation; // operation
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double num1; // number 1
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double num2; // number 2
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double result; // result
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public void actionPerformed(ActionEvent e) {
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// handle the text field
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if (e.getSource() == jbt0Button)
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jtxtField.setText(jtxtField.getText() + '0');
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else if (e.getSource() == jbt1Button)
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jtxtField.setText(jtxtField.getText() + '1');
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else if (e.getSource() == jbt2Button)
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jtxtField.setText(jtxtField.getText() + '2');
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else if (e.getSource() == jbt3Button)
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jtxtField.setText(jtxtField.getText() + '3');
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else if (e.getSource() == jbt5Button)
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jtxtField.setText(jtxtField.getText() + '5');
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else if (e.getSource() == jbt6Button)
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jtxtField.setText(jtxtField.getText() + '6');
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else if (e.getSource() == jbt7Button)
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jtxtField.setText(jtxtField.getText() + '7');
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else if (e.getSource() == jbt8Button)
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jtxtField.setText(jtxtField.getText() + '8');
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else if (e.getSource() == jbt9Button)
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jtxtField.setText(jtxtField.getText() + '9');
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else if (e.getSource() == jbtDotButton)
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jtxtField.setText(jtxtField.getText() + '.');
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else if (e.getSource() == jbtPlusButton) {
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operation = '+';
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num1 = Double.parseDouble(jtxtField.getText());
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jtxtField.setText("");
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}
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else if (e.getSource() == jbtMinusButton) {
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operation = '-';
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num1 = Double.parseDouble(jtxtField.getText());
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jtxtField.setText("");
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}
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else if (e.getSource() == jbtMultiplyButton) {
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operation = '*';
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num1 = Double.parseDouble(jtxtField.getText());
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jtxtField.setText("");
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}
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else if (e.getSource() == jbtDeleteButton) {
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operation = '/';
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num1 = Double.parseDouble(jtxtField.getText());
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jtxtField.setText("");
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}
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else if (e.getSource() == jbtEqualButton) {
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num2 = Double.parseDouble(jtxtField.getText());
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// handle calculation
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if (operation == '+')
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result = num1 + num2;
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else if (operation == '-')
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result = num1 - num2;
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else if (operation == '*')
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result = num1 * num2;
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else if (operation == '/')
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result = num1 / num2;
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jtxtField.setText(Double.toString(result)); // ouput the resust
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}
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}
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} // ListenerClass
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} // Calculator

‎lab-06-swing/Printer.java

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/**
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* Rustam Zokirov, U1910049
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* Working with Layouts
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*/
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import javax.swing.*; // import library to work with GUI
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public class Printer extends JFrame { // inherit JFrame
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public static void main(String[] args) {
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// Labels
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JLabel jlblPrinter = new JLabel("Printer: My Printer");
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jlblPrinter.setBounds(30, 10, 150, 20); // set the coordinates, length and width
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JLabel jlblQuality = new JLabel("Print Quality:");
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jlblQuality.setBounds(30, 100, 150, 20); // set the coordinates, length and width
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// Text areas
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JTextArea jtxtFirst = new JTextArea();
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jtxtFirst.setBounds(25, 35, 50, 60);
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JTextArea jtxtSecond = new JTextArea();
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jtxtSecond.setBounds(150, 35, 40, 60);
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JTextArea jtxtThird = new JTextArea();
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jtxtThird.setBounds(270, 35, 50, 60);
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// Check box
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JCheckBox checkBox1 = new JCheckBox("Image", true);
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checkBox1.setBounds(75, 37, 60, 15);
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JCheckBox checkBox2 = new JCheckBox("Text");
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checkBox2.setBounds(75, 57, 60, 15);
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JCheckBox checkBox3 = new JCheckBox("Code");
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checkBox3.setBounds(75, 77, 60, 15);
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JCheckBox printFileBox = new JCheckBox("Print to file");
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printFileBox.setBounds(195, 100, 120, 20);
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// Radio Buttons
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JRadioButton radioButton1 = new JRadioButton("Selection");
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radioButton1.setBounds(190, 37, 80, 15);
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JRadioButton radioButton2 = new JRadioButton("All", true);
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radioButton2.setBounds(190, 57, 80, 15);
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JRadioButton radioButton3 = new JRadioButton("Applet");
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radioButton3.setBounds(190, 77, 80, 15);
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// ComboBox
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String quality[] = {"High","Medium","Low"}; // array which contatins all the choices
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JComboBox comboBox = new JComboBox(quality);
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comboBox.setBounds(115, 100, 70, 20);
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// Buttons
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JButton jbtOkButton = new JButton("Ok");
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jbtOkButton.setBounds(330, 20, 75, 25);
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JButton jbtCancelButton = new JButton("Cancel");
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jbtCancelButton.setBounds(330, 50, 75, 25);
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JButton jbtSetupButton = new JButton("Setup");
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jbtSetupButton.setBounds(330, 80, 75, 25);
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JButton jbtHelpButton = new JButton("Help");
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jbtHelpButton.setBounds(330, 110, 75, 25);
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// Create Frame
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JFrame frame = new Printer();
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frame.add(jlblPrinter);
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frame.add(jlblQuality);
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frame.add(jtxtFirst);
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frame.add(jtxtSecond);
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frame.add(jtxtThird);
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frame.add(checkBox1);
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frame.add(checkBox2);
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frame.add(checkBox3);
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frame.add(printFileBox);
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frame.add(radioButton1);
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frame.add(radioButton2);
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frame.add(radioButton3);
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frame.add(comboBox);
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frame.add(jbtOkButton);
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frame.add(jbtCancelButton);
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frame.add(jbtSetupButton);
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frame.add(jbtHelpButton);
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// Some settings
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frame.setTitle("Printer");
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frame.setLayout(null);
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frame.setSize(450, 200);
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frame.setLocation(200, 100);
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frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
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frame.setVisible(true);
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}
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}

‎lab-06-swing/U1910049_Lab#6.zip

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‎programs/HandleEvent1.java

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import javax.swing.*;
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import java.awt.event.*;
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public class HandleEvent1 extends JFrame
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{
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public class HandleEvent1 extends JFrame {
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JButton jbtOK = new JButton("OK");
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JButton jbtCancel = new JButton("Cancel");
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