JTree: getLeadSelectionRow() : JTree « javax.swing « Java by API

1. Java by API
2. javax.swing
3. JTree

JTree: getLeadSelectionRow()

  

import java.awt.BorderLayout;

import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JTree;
import javax.swing.event.TreeSelectionEvent;
import javax.swing.event.TreeSelectionListener;

public class Main {
  public static void main(String args[]) {
    String title = "JTree Sample";
    JFrame frame = new JFrame(title);
    JTree tree = new JTree();
    TreeSelectionListener treeSelectionListener = new TreeSelectionListener() {
      public void valueChanged(TreeSelectionEvent treeSelectionEvent) {
        JTree treeSource = (JTree) treeSelectionEvent.getSource();
        System.out.println("Min: " + treeSource.getMinSelectionRow());
        System.out.println("Max: " + treeSource.getMaxSelectionRow());
        System.out.println("Lead: " + treeSource.getLeadSelectionRow());
        System.out.println("Row: " + treeSource.getSelectionRows()[0]);
      }
    };
    tree.addTreeSelectionListener(treeSelectionListener);

    JScrollPane scrollPane = new JScrollPane(tree);
    frame.getContentPane().add(scrollPane, BorderLayout.CENTER);

    frame.setSize(300, 150);
    frame.setVisible(true);
  }
}

   
    
  

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