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import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Font;
import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JTree;
import javax.swing.tree.DefaultTreeCellRenderer;
public class MainClass {
public static void main(String args[]) {
JFrame frame = new JFrame("Changed Renderer");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
JTree tree = new JTree();
DefaultTreeCellRenderer renderer = (DefaultTreeCellRenderer) tree.getCellRenderer();
renderer.setFont(new Font("Dialog", Font.BOLD | Font.ITALIC, 32));
int rowHeight = tree.getRowHeight();
if (rowHeight <= 0) {
tree.setRowHeight(rowHeight - 1);
}
Color backgroundSelection = renderer.getBackgroundSelectionColor();
renderer.setBackgroundSelectionColor(Color.blue);
renderer.setBackgroundNonSelectionColor(backgroundSelection);
// Swap text colors
Color textSelection = renderer.getTextSelectionColor();
renderer.setTextSelectionColor(Color.green);
renderer.setTextNonSelectionColor(textSelection);
JScrollPane scrollPane = new JScrollPane(tree);
frame.add(scrollPane, BorderLayout.CENTER);
frame.setSize(300, 150);
frame.setVisible(true);
}
}
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