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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