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How can we set a background color to JSplitPane in Java?
A JSplitPane is a subclass of JComponent class that allows us to arrange two components side by side horizontally or vertically in a single pane. The display areas of both components can also be adjusted at the runtime by the user. The important methods of JSplitPane are remove(), removeAll(), resetToPreferredSizes() and setDividerLocation(). A JSplitPane can generate a PropertyChangeListener interface. We can set a background color to a JSplitPane by adding two different background colors to two panels first and pass these arguments to JSplitPane constructor.
Example
import javax.swing.*;
import java.awt.*;
public class JSplitPaneColorTest extends JFrame {
private JSplitPane jsp;
private JPanel panel1,panel2;
public JSplitPaneColorTest() {
setTitle("JSplitPane Example");
panel1 = new JPanel();
panel1.setBackground(Color.lightGray);
panel2 = new JPanel();
panel2.setBackground(Color.blue);
jsp = new JSplitPane(JSplitPane.HORIZONTAL_SPLIT, panel1, panel2);
jsp.setDividerSize(10);
jsp.setResizeWeight(0.5);
add(jsp);
setDefaultCloseOperation(EXIT_ON_CLOSE);
setLocationRelativeTo(null);
setSize(400, 275);
setVisible(true);
}
public static void main(String args[]) {
new JSplitPaneColorTest();
}
}Output
Updated on: 10-Feb-2020
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