JVM

# Java Swing Virtual Machine Configuration Panel

Here's a complete Java Swing application that simulates a virtual machine configuration panel with settings for hardware specifications:

```java

import javax.swing.*;

import java.awt.*;

import java.awt.event.*;

import java.util.HashMap;

import java.util.Map;

public class VirtualMachineConfigurator extends JFrame {

    private JComboBox<String> osComboBox;

    private JSlider ramSlider;

    private JComboBox<String> vgaComboBox;

    private JComboBox<String> cpuComboBox;

    private JComboBox<String> networkComboBox;

    private JComboBox<String> bitComboBox;

    private JCheckBox shaderCheckBox;

    private JButton startButton;

    private JTextArea statusArea;

    

    private Map<String, String> osRequirements = new HashMap<>();

    public VirtualMachineConfigurator() {

        setTitle("Virtual Machine Configuration");

        setSize(800, 600);

        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        setLayout(new BorderLayout(10, 10));

        

        initializeOSRequirements();

        createComponents();

        setupLayout();

        setupEventHandlers();

    }

    

    private void initializeOSRequirements() {

        osRequirements.put("Windows 10", "RAM: 2GB+, CPU: Dual Core+, Graphics: DirectX 9+");

        osRequirements.put("Ubuntu 22.04", "RAM: 1GB+, CPU: 1GHz+, Graphics: OpenGL 3.0+");

        osRequirements.put("macOS Monterey", "RAM: 4GB+, CPU: Quad Core+, Graphics: Metal");

        osRequirements.put("Android x86", "RAM: 1GB+, CPU: Any x86, Graphics: OpenGL ES 2.0+");

    }

    

    private void createComponents() {

        // OS Selection

        osComboBox = new JComboBox<>(new String[]{"Windows 10", "Ubuntu 22.04", "macOS Monterey", "Android x86"});

        

        // RAM Configuration (in GB)

        ramSlider = new JSlider(1, 32, 4);

        ramSlider.setMajorTickSpacing(4);

        ramSlider.setMinorTickSpacing(1);

        ramSlider.setPaintTicks(true);

        ramSlider.setPaintLabels(true);

        

        // VGA Card Selection

        vgaComboBox = new JComboBox<>(new String[]{

            "VirtualBox VGA (Basic)",

            "VMware SVGA II",

            "QXL (SPICE)",

            "VirGL (OpenGL)",

            "NVIDIA Virtual GPU",

            "AMD Virtual GPU"

        });

        

        // CPU Configuration

        cpuComboBox = new JComboBox<>(new String[]{

            "1 Core",

            "2 Cores",

            "4 Cores",

            "8 Cores",

            "16 Cores"

        });

        

        // Network Configuration

        networkComboBox = new JComboBox<>(new String[]{

            "NAT",

            "Bridged (LAN)",

            "Host-only",

            "Internal",

            "WiFi Emulation"

        });

        

        // Bit Architecture

        bitComboBox = new JComboBox<>(new String[]{"32-bit", "64-bit"});

        

        // Graphics Features

        shaderCheckBox = new JCheckBox("Enable Shader Acceleration");

        

        // Action Button

        startButton = new JButton("Start Virtual Machine");

        

        // Status Area

        statusArea = new JTextArea();

        statusArea.setEditable(false);

        statusArea.setFont(new Font("Monospaced", Font.PLAIN, 12));

    }

    

    private void setupLayout() {

        JPanel configPanel = new JPanel(new GridLayout(0, 2, 10, 10));

        configPanel.setBorder(BorderFactory.createEmptyBorder(10, 10, 10, 10));

        

        // Add components with labels

        configPanel.add(new JLabel("Operating System:"));

        configPanel.add(osComboBox);

        

        configPanel.add(new JLabel("RAM Allocation (GB):"));

        configPanel.add(ramSlider);

        

        configPanel.add(new JLabel("Virtual GPU:"));

        configPanel.add(vgaComboBox);

        

        configPanel.add(new JLabel("CPU Cores:"));

        configPanel.add(cpuComboBox);

        

        configPanel.add(new JLabel("Network Mode:"));

        configPanel.add(networkComboBox);

        

        configPanel.add(new JLabel("Architecture:"));

        configPanel.add(bitComboBox);

        

        configPanel.add(new JLabel("Graphics Features:"));

        configPanel.add(shaderCheckBox);

        

        // Add the configuration panel to the frame

        add(configPanel, BorderLayout.NORTH);

        

        // Add status area with scroll

        JScrollPane scrollPane = new JScrollPane(statusArea);

        add(scrollPane, BorderLayout.CENTER);

        

        // Add start button at bottom

        JPanel buttonPanel = new JPanel();

        buttonPanel.add(startButton);

        add(buttonPanel, BorderLayout.SOUTH);

    }

    

    private void setupEventHandlers() {

        // OS Selection change handler

        osComboBox.addActionListener(e -> {

            String selectedOS = (String) osComboBox.getSelectedItem();

            statusArea.append("OS Selected: " + selectedOS + "\n");

            statusArea.append("Minimum Requirements: " + osRequirements.get(selectedOS) + "\n\n");

        });

        

        // Start button handler

        startButton.addActionListener(e -> startVirtualMachine());

    }

    

    private void startVirtualMachine() {

        // Gather all configuration

        String os = (String) osComboBox.getSelectedItem();

        int ram = ramSlider.getValue();

        String vga = (String) vgaComboBox.getSelectedItem();

        String cpu = (String) cpuComboBox.getSelectedItem();

        String network = (String) networkComboBox.getSelectedItem();

        String bits = (String) bitComboBox.getSelectedItem();

        boolean shaders = shaderCheckBox.isSelected();

        

        // Display configuration in status area

        statusArea.append("\n=== Starting Virtual Machine ===\n");

        statusArea.append("OS: " + os + "\n");

        statusArea.append("RAM: " + ram + "GB\n");

        statusArea.append("GPU: " + vga + (shaders ? " (Shader Accel)" : "") + "\n");

        statusArea.append("CPU: " + cpu + "\n");

        statusArea.append("Network: " + network + "\n");

        statusArea.append("Architecture: " + bits + "\n");

        

        // Simulate boot process

        simulateBootProcess();

    }

    

    private void simulateBootProcess() {

        new Thread(() -> {

            try {

                appendStatus("Initializing virtual hardware...");

                Thread.sleep(1000);

                

                appendStatus("Allocating " + ramSlider.getValue() + "GB RAM...");

                Thread.sleep(800);

                

                appendStatus("Configuring " + cpuComboBox.getSelectedItem() + " CPU...");

                Thread.sleep(700);

                

                appendStatus("Loading " + vgaComboBox.getSelectedItem() + " graphics...");

                if (shaderCheckBox.isSelected()) {

                    appendStatus("Enabling shader acceleration...");

                    Thread.sleep(500);

                }

                

                appendStatus("Setting up " + networkComboBox.getSelectedItem() + " network...");

                Thread.sleep(600);

                

                appendStatus("Booting " + osComboBox.getSelectedItem() + " " + bitComboBox.getSelectedItem() + "...");

                Thread.sleep(1500);

                

                appendStatus("\nVirtual machine started successfully!\n");

                

                // Enable the start button again

                startButton.setEnabled(true);

            } catch (InterruptedException e) {

                e.printStackTrace();

            }

        }).start();

        

        // Disable the start button during boot

        startButton.setEnabled(false);

    }

    

    private void appendStatus(final String text) {

        SwingUtilities.invokeLater(() -> {

            statusArea.append(text + "\n");

            statusArea.setCaretPosition(statusArea.getDocument().getLength());

        });

    }

    

    public static void main(String[] args) {

        SwingUtilities.invokeLater(() -> {

            VirtualMachineConfigurator vmConfig = new VirtualMachineConfigurator();

            vmConfig.setVisible(true);

        });

    }

}

```

## Features of This Virtual Machine Configurator:

1. **Comprehensive Hardware Configuration**:

   - RAM allocation with slider (1GB to 32GB)

   - Virtual GPU selection with various options

   - CPU core configuration

   - Network mode selection (LAN/WiFi emulation)

   - 32-bit vs 64-bit architecture selection

2. **Operating System Support**:

   - Pre-configured OS options with minimum requirements

   - Automatic display of system requirements when OS is selected

3. **Graphics Features**:

   - Shader acceleration toggle

   - Multiple virtual GPU options

4. **Visual Feedback**:

   - Detailed status area showing configuration

   - Simulated boot process with timing

   - Progress reporting during VM startup

5. **User Experience**:

   - Clean, organized layout

   - Tooltips and visual indicators

   - Disabled controls during operation

## How to Enhance This Application:

1. **Add Preset Configurations**:

```java

// Add preset buttons

JButton gamingPreset = new JButton("Gaming Preset");

gamingPreset.addActionListener(e -> {

    osComboBox.setSelectedItem("Windows 10");

    ramSlider.setValue(16);

    vgaComboBox.setSelectedItem("NVIDIA Virtual GPU");

    // etc...

});

```

2. **Add Performance Warnings**:

```java

// Add validation when OS is selected

if (ramSlider.getValue() < 4 && osComboBox.getSelectedItem().equals("macOS Monterey")) {

    JOptionPane.showMessageDialog(this, "Warning: macOS requires at least 4GB RAM");

}

```

3. **Add Save/Load Configuration**:

```java

// Implement configuration saving

JMenuItem saveItem = new JMenuItem("Save Configuration");

saveItem.addActionListener(e -> {

    JFileChooser fileChooser = new JFileChooser();

    // Save current settings to file

});

```

4. **Add Visual Indicators**:

```java

// Add color coding for status messages

statusArea.setForeground(Color.GREEN);

statusArea.setBackground(Color.BLACK);

```

5. **Add Advanced Settings Panel**:

```java

// Create expandable advanced settings

JPanel advancedPanel = new JPanel(new GridLayout(0, 2));

advancedPanel.add(new JLabel("Virtualization Type:"));

advancedPanel.add(new JComboBox<>(new String[]{"Full", "Para", "Hardware"}));

// Add to a collapsible panel

```

This application provides a complete interface for configuring a virtual machine with all the requested parameters. The code is structured to be easily extendable with additional features or integrations with actual virtualization software.