diff --git a/.idea/.gitignore b/.idea/.gitignore new file mode 100644 index 0000000..13566b8 --- /dev/null +++ b/.idea/.gitignore @@ -0,0 +1,8 @@ +# Default ignored files +/shelf/ +/workspace.xml +# Editor-based HTTP Client requests +/httpRequests/ +# Datasource local storage ignored files +/dataSources/ +/dataSources.local.xml diff --git a/.idea/JavaSwingSimpleExercise.iml b/.idea/JavaSwingSimpleExercise.iml new file mode 100644 index 0000000..1644d35 --- /dev/null +++ b/.idea/JavaSwingSimpleExercise.iml @@ -0,0 +1,14 @@ + + + + + + + + + + + + + + \ No newline at end of file diff --git a/.idea/misc.xml b/.idea/misc.xml new file mode 100644 index 0000000..f03c948 --- /dev/null +++ b/.idea/misc.xml @@ -0,0 +1,6 @@ + + + + + + \ No newline at end of file diff --git a/.idea/modules.xml b/.idea/modules.xml new file mode 100644 index 0000000..2d16929 --- /dev/null +++ b/.idea/modules.xml @@ -0,0 +1,8 @@ + + + + + + + + \ No newline at end of file diff --git a/.idea/vcs.xml b/.idea/vcs.xml new file mode 100644 index 0000000..35eb1dd --- /dev/null +++ b/.idea/vcs.xml @@ -0,0 +1,6 @@ + + + + + + \ No newline at end of file diff --git a/out/production/JavaSwingSimpleExercise/E1.class b/out/production/JavaSwingSimpleExercise/E1.class new file mode 100644 index 0000000..a63b8fd Binary files /dev/null and b/out/production/JavaSwingSimpleExercise/E1.class differ diff --git a/out/production/JavaSwingSimpleExercise/images/img-1-1.png b/out/production/JavaSwingSimpleExercise/images/img-1-1.png new file mode 100644 index 0000000..12b529a Binary files /dev/null and b/out/production/JavaSwingSimpleExercise/images/img-1-1.png differ diff --git a/out/production/JavaSwingSimpleExercise/images/img-1-2.png b/out/production/JavaSwingSimpleExercise/images/img-1-2.png new file mode 100644 index 0000000..a78ac9e Binary files /dev/null and b/out/production/JavaSwingSimpleExercise/images/img-1-2.png differ diff --git a/out/production/JavaSwingSimpleExercise/readme-part-1.md b/out/production/JavaSwingSimpleExercise/readme-part-1.md new file mode 100644 index 0000000..f7292df --- /dev/null +++ b/out/production/JavaSwingSimpleExercise/readme-part-1.md @@ -0,0 +1,67 @@ +## Exercise 1: Click Counter Application + +### Description & Goal + +Create a simple GUI application that tracks how many times a user clicks a button and displays the count in real time. This exercise reinforces the basics of Swing components and event handling. + +### Code Breakdown + +**Part 1: Field Declarations** +Define the UI components and a counter variable. + +```java +public class ClickCounterApp extends JFrame implements ActionListener { + private JLabel counterLabel; // Displays the click count + private JButton clickButton; // Button to register clicks + private int count = 0; // Stores the current count +} +``` + +*Explanation:* We declare a `JLabel` for showing the count, a `JButton` for clicks, and an integer `count` initialized to 0. + +**Part 2: Constructor Setup** +Initialize and arrange components in the window. + +```java +public ClickCounterApp() { + setTitle("Click Counter"); + counterLabel = new JLabel("Clicks: 0", SwingConstants.CENTER); + clickButton = new JButton("Click Me"); + clickButton.addActionListener(this); + + setLayout(new BorderLayout()); + add(counterLabel, BorderLayout.CENTER); + add(clickButton, BorderLayout.SOUTH); +} +``` + +*Explanation:* In the constructor we set the title, create the label and button, attach an `ActionListener` to the button, choose a `BorderLayout`, and place the label at center and button at bottom. + +**Part 3: Event Handling** +Update count and label text when the button is clicked. + +```java +@Override +public void actionPerformed(ActionEvent e) { + count++; // Increment the click counter + counterLabel.setText("Clicks: " + count); +} +``` + +*Explanation:* The `actionPerformed` method is called on each click. We increase `count` by one and refresh the label text to reflect the new value. + +**Part 4: Application Entry Point** +Launch the GUI on the Event Dispatch Thread. + +```java +public static void main(String[] args) { + SwingUtilities.invokeLater(() -> new ClickCounterApp().setVisible(true)); +} +``` + +*Explanation:* Using `SwingUtilities.invokeLater` ensures thread safety by creating and showing the GUI on the Swing event thread. +--- +### output of the code: + +... +... diff --git a/part-1/E1.java b/part-1/E1.java index e69de29..07b5dd7 100644 --- a/part-1/E1.java +++ b/part-1/E1.java @@ -0,0 +1,37 @@ +import javax.swing.*; +import java.awt.*; +import java.awt.event.ActionEvent; +import java.awt.event.ActionListener; + +public class E1 extends JFrame implements ActionListener { + private JLabel counterLabel; + private JButton clickButton; + private int count = 0; + + public E1() { + setTitle("Click Counter"); + setSize(300, 200); + setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); + + counterLabel = new JLabel("Clicks: 0", SwingConstants.CENTER); + clickButton = new JButton("Click Me"); + clickButton.addActionListener(this); + + setLayout(new BorderLayout()); + add(counterLabel, BorderLayout.CENTER); + add(clickButton, BorderLayout.SOUTH); + } + + @Override + public void actionPerformed(ActionEvent e) { + count++; + counterLabel.setText("Clicks: " + count); + } + + public static void main(String[] args) { + SwingUtilities.invokeLater(() -> { + E1 app = new E1(); + app.setVisible(true); + }); + } +} diff --git a/part-2/E2.java b/part-2/E2.java index e69de29..f6ccf2a 100644 --- a/part-2/E2.java +++ b/part-2/E2.java @@ -0,0 +1,44 @@ +import javax.swing.*; +import java.awt.*; +import java.awt.event.*; + +public class E2 extends JFrame implements ActionListener { + private JTextField nameField; + private JButton greetButton; + private JLabel messageLabel; + + public E2() { + setTitle("Greeting Form"); + nameField = new JTextField(15); + greetButton = new JButton("Greet"); + messageLabel = new JLabel("Enter your name and press Greet.", SwingConstants.CENTER); + + greetButton.addActionListener(this); + + JPanel inputPanel = new JPanel(); + inputPanel.add(new JLabel("Name:")); + inputPanel.add(nameField); + inputPanel.add(greetButton); + + setLayout(new BorderLayout()); + add(inputPanel, BorderLayout.NORTH); + add(messageLabel, BorderLayout.CENTER); + + setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); + setSize(400, 200); + } + + @Override + public void actionPerformed(ActionEvent e) { + String name = nameField.getText().trim(); + if (name.isEmpty()) { + messageLabel.setText("Please enter a name."); + } else { + messageLabel.setText("Hello, " + name + "!"); + } + } + + public static void main(String[] args) { + SwingUtilities.invokeLater(() -> new E2().setVisible(true)); + } +} diff --git a/part-3/E3.java b/part-3/E3.java index e69de29..04ec6c2 100644 --- a/part-3/E3.java +++ b/part-3/E3.java @@ -0,0 +1,59 @@ +import javax.swing.*; +import java.awt.*; +import java.awt.event.*; + +public class E3 extends JFrame implements ActionListener { + private JPanel mainPanel; + private JButton redButton; + private JButton greenButton; + private JButton blueButton; + + public E3() { + setTitle("Theme Color Selector"); + + mainPanel = new JPanel(); + + redButton = new JButton("Red"); + greenButton = new JButton("Green"); + blueButton = new JButton("Blue"); + + redButton.setActionCommand("RED"); + greenButton.setActionCommand("GREEN"); + blueButton.setActionCommand("BLUE"); + + redButton.addActionListener(this); + greenButton.addActionListener(this); + blueButton.addActionListener(this); + + JPanel buttonPanel = new JPanel(); + buttonPanel.add(redButton); + buttonPanel.add(greenButton); + buttonPanel.add(blueButton); + + setLayout(new BorderLayout()); + add(buttonPanel, BorderLayout.NORTH); + add(mainPanel, BorderLayout.CENTER); + + setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); + setSize(400, 200); + } + + @Override + public void actionPerformed(ActionEvent e) { + switch (e.getActionCommand()) { + case "RED": + mainPanel.setBackground(Color.RED); + break; + case "GREEN": + mainPanel.setBackground(Color.GREEN); + break; + case "BLUE": + mainPanel.setBackground(Color.BLUE); + break; + } + } + + public static void main(String[] args) { + SwingUtilities.invokeLater(() -> new E3().setVisible(true)); + } +} diff --git a/part-4/E4.java b/part-4/E4.java index e69de29..06e28ef 100644 --- a/part-4/E4.java +++ b/part-4/E4.java @@ -0,0 +1,104 @@ +import javax.swing.*; +import java.awt.*; +import java.awt.event.*; + +public class E4 extends JFrame implements ActionListener { + private JTextField txtName; + private JTextField txtEmail; + private JPasswordField txtPassword; + private JRadioButton rbMale, rbFemale; + private JCheckBox cbJava, cbPython, cbCpp; + private JButton btnSubmit; + private GridBagConstraints gbc; + + public E4() { + setTitle("User Registration"); + setSize(500, 350); + setDefaultCloseOperation(EXIT_ON_CLOSE); + setLocationRelativeTo(null); + + JPanel panel = new JPanel(new GridBagLayout()); + gbc = new GridBagConstraints(); + gbc.insets = new Insets(5, 5, 5, 5); + gbc.fill = GridBagConstraints.HORIZONTAL; + + gbc.gridx = 0; + gbc.gridy = 0; + panel.add(new JLabel("Name:"), gbc); + gbc.gridx = 1; + txtName = new JTextField(20); + panel.add(txtName, gbc); + + gbc.gridx = 0; + gbc.gridy = 1; + panel.add(new JLabel("Email:"), gbc); + gbc.gridx = 1; + txtEmail = new JTextField(20); + panel.add(txtEmail, gbc); + + gbc.gridx = 0; + gbc.gridy = 2; + panel.add(new JLabel("Password:"), gbc); + gbc.gridx = 1; + txtPassword = new JPasswordField(20); + panel.add(txtPassword, gbc); + + gbc.gridx = 0; + gbc.gridy = 3; + panel.add(new JLabel("Gender:"), gbc); + gbc.gridx = 1; + rbMale = new JRadioButton("Male"); + rbFemale = new JRadioButton("Female"); + ButtonGroup bg = new ButtonGroup(); + bg.add(rbMale); + bg.add(rbFemale); + JPanel genderPanel = new JPanel(); + genderPanel.add(rbMale); + genderPanel.add(rbFemale); + panel.add(genderPanel, gbc); + + gbc.gridx = 0; + gbc.gridy = 4; + panel.add(new JLabel("Interests:"), gbc); + gbc.gridx = 1; + cbJava = new JCheckBox("Java"); + cbPython = new JCheckBox("Python"); + cbCpp = new JCheckBox("C++"); + JPanel interestPanel = new JPanel(); + interestPanel.add(cbJava); + interestPanel.add(cbPython); + interestPanel.add(cbCpp); + panel.add(interestPanel, gbc); + + gbc.gridx = 1; + gbc.gridy = 5; + gbc.anchor = GridBagConstraints.CENTER; + btnSubmit = new JButton("Submit"); + btnSubmit.addActionListener(this); + panel.add(btnSubmit, gbc); + + add(panel); + } + + @Override + public void actionPerformed(ActionEvent e) { + String name = txtName.getText(); + String email = txtEmail.getText(); + String gender = rbMale.isSelected() ? "Male" : rbFemale.isSelected() ? "Female" : "Unspecified"; + String interests = ""; + if (cbJava.isSelected()) interests += "Java "; + if (cbPython.isSelected()) interests += "Python "; + if (cbCpp.isSelected()) interests += "C++ "; + + JOptionPane.showMessageDialog(this, + "Name: " + name + "\n" + + "Email: " + email + "\n" + + "Gender: " + gender + "\n" + + "Interests: " + interests, + "Registration Details", JOptionPane.INFORMATION_MESSAGE); + } + + public static void main(String[] args) { + SwingUtilities.invokeLater(() -> new E4().setVisible(true)); + } +}