Source Code : Flush the internal cache of Row height

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Flush the internal cache of Row height

    

import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JTree;

public class TreeRowHeightCache {
  public static void main(String[] argv) {
    JTree tree = new JTree();

    if (tree.getRowHeight() <= 0) {
      tree.setRowHeight(1);
    }
    tree.setRowHeight(0);

    JFrame frame = new JFrame("Image");
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frame.add(new JScrollPane(tree));
    frame.setSize(380, 320);
    frame.setLocationRelativeTo(null);
    frame.setVisible(true);

  }
}

   
    
    
    
  

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