Caret Events and Listeners : CaretListener « Swing Event « Java Tutorial

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Java Tutorial » Swing Event » CaretListener

15. 8. 1. Caret Events and Listeners

Whenever a caret changes its position or if text is selected, a caret event is fired by a text component. The class CaretEvent supports the methods getDot() and getMark() to retrieve the current location and the end position of a text selection, respectively.


import javax.swing.JFrame;

import javax.swing.JScrollPane;

import javax.swing.JTextField;

import javax.swing.event.CaretEvent;

import javax.swing.event.CaretListener;



public class CaretEeventListener {



  public static void main(String[] a) {

    JFrame frame = new JFrame();

    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);



    JTextField textField = new JTextField();



    textField.addCaretListener(new CaretListener() {



      public void caretUpdate(CaretEvent e) {

        System.out.println(e);



      }

    });



    frame.add(new JScrollPane(textField));



    frame.setSize(300, 200);

    frame.setVisible(true);

  }



}

15. 8. CaretListener
	15. 8. 1.	Caret Events and Listeners
	15. 8. 2.	Listen to CaretEvent with CaretListener

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