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java swing program input

Perfect Porcupine answered on July 9, 2024 Popularity 1/10 Helpfulness 1/10

answer java swing program input

java swing program input

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Starting with Swing can be complex at the start. Make sure you have done these steps in your code:

// 1. You call java.awt.EventQueue.invokeLater();
public static void main(String[] args) {
    java.awt.EventQueue.invokeLater(() -> run());
}
public void run() { /* Your program start here */}

// 2. Create your JPanel & JFrame (or other Components)
// a JFrame can add a JPanel.
public void create() {
	JFrame frame = new JFrame();
    frame.getContentPane().add(new YourJPanel());
    frame.pack();
}

// 3. Register key listeners / mouse listeners:
public class YourJPanel extends JPanel {
	public YourJPanel(KeyListener listener) {
    	this.addKeyListener(listener);
    }
    @Override
    public void paintComponent(Graphics g) {}
}

// Define your instance of the key listener somewhere logically, try to separate input & render
// Make sure to use paintComponent(Graphics g) instead of paintComponents(Graphics g), the latter will not render anything!

Popularity 1/10 Helpfulness 1/10 Language java

Source: Grepper

Tags: input java swing

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Contributed on Jul 09 2024

Perfect Porcupine

0 Answers Avg Quality 2/10

java swing program input

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