Removing Horizontal Lines to Node Groups

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Removing Horizontal Lines to Node Groups

In this section, you will learn to create none type tree in Java. None type tree means that children nodes are not connected to their parent node

In this section, you will learn to create none type tree in Java. None type tree means that children nodes are not connected to their parent node

Removing Horizontal Lines to Node Groups

     

Introduction

In this section, you will learn to create none type tree in Java. None type tree means that children nodes are not connected to their parent node 

Program Description:

This program constructs a tree that does not   have any line or ruler to connect  parent and the child nodes. This is very simple, if you want to remove the connected line, just put the "None" property in the putClientProperty() method and you will get none type tree node. Finally, the tree is added to the frame. 

Here is the code of this program:

import javax.swing.*;
import javax.swing.event.*;

public class JTreeNone{

  public static void main(String[] args){
  JTree tree = new JTree();
  tree.putClientProperty("JTree.lineStyle""None");
  JScrollPane scrollpane = new JScrollPane(tree);
  JFrame fm = new JFrame("JTreeNone frame");
  fm.getContentPane().add(scrollpane, "Center");
  fm.setSize(300,300);
  fm.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
  fm.setVisible(true);
  }
}

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Output this program:

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