How to Change the Background Color of a JFrame in Java?

Modifying Background Color in JFrame

To customize the appearance of your Java applications, including JFrame objects, it's often necessary to adjust the background color. This can be easily achieved by accessing the content pane of the frame.

Solution:

Retrieve the content pane, which is a JPanel, using the getContentPane() method. Затем используйте унаследованный от Component метод setBackground(), чтобы задать желаемый цвет.

<code class="java">myJFrame.getContentPane().setBackground(desiredColor);</code>

Example:

To set the background color of a JFrame instance named myJFrame to blue, use the following code:

<code class="java">import java.awt.*;
import javax.swing.*;

public class JFrameBackgroundColorExample {

    public static void main(String[] args) {
        JFrame myJFrame = new JFrame();
        myJFrame.getContentPane().setBackground(Color.BLUE);
        myJFrame.setSize(400, 300);
        myJFrame.setVisible(true);
    }
}</code>

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