Copy Selected Text From JTextArea to JTextField

Program Description:

The program below is a java code that lets you copy the selected text you want from JTextArea to JTextField by just highlighting the text or string you want.

Output:

Code:

/**

 * File: copyJTextAreaSelectedText.java

 * Tiltle: Copy Selected Text From JTextArea to JTextField

 * Author: http://java-code-complete.blogspot.com

 */



//Java Core Package

import javax.swing.*;

//Java Extension Package

import java.awt.*;

import java.awt.event.*;



public class copyJTextAreaSelectedText extends JFrame {

	

	//Initializing JTextArea, JButton, and JTextField

	private JTextArea txtArea;

	private JButton copy;

	private JTextField display;



	//Setting up GUI

    public copyJTextAreaSelectedText() {

    	

    	//Setting up the Title of the Window

    	super("Copy Selected Text From JTextArea to JTextField");



    	//Set Size of the Window (WIDTH, HEIGHT)

    	setSize(380,255);



    	//Exit Property of the Window

    	setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

    	   	

    	//Constructing JTextArea, JButton, and JTextField

    	txtArea = new JTextArea("Type the Text you want here. . . .", 10,31);

    	copy = new JButton("Copy the Selected Text >>");

    	display = new JTextField(32);

    	

    	//JTextArea Property

    	txtArea.setLineWrap(true); //Disable the Horizontal Scrollbar

    	

    	//Constructing a JScrollPane for JTextArea's Horizontal and Vertical Scroll Bar

    	JScrollPane scroller = new JScrollPane(txtArea, JScrollPane.VERTICAL_SCROLLBAR_ALWAYS, JScrollPane.HORIZONTAL_SCROLLBAR_NEVER);

    	

    	//Setting up the container ready for the components to be added.

    	Container pane = getContentPane();

    	setContentPane(pane);



    	//Setting up the container layout

    	FlowLayout flow = new FlowLayout(FlowLayout.CENTER);

    	pane.setLayout(flow);

    	

    	//Implemeting Even-Listener on JButton copy

		copy.addActionListener(

		new ActionListener() {

			

			//Handle JButton event if it is clicked

			public void actionPerformed(ActionEvent event) {

				

				//This will display the selected text from JTextArea to JTextField by highlighting the text or string you want to copy.

				display.setText(txtArea.getSelectedText());

			}

		}

		);



		//Adding the JScrollPane to the Container with JTextArea on it

		//Adding JButton and JTextField to the container

		pane.add(scroller);

		pane.add(copy);

		pane.add(display);

		

    	/**Set all the Components Visible.

    	 * If it is set to "false", the components in the container will not be visible.

    	 */

    	setVisible(true);

    }

    

	//Main Method

    public static void main (String[] args) {

    	copyJTextAreaSelectedText pjtf = new copyJTextAreaSelectedText();

	}

}

Important Part of the Program:

//Implemeting Even-Listener on JButton copy

		copy.addActionListener(

		new ActionListener() {

			

			//Handle JButton event if it is clicked

			public void actionPerformed(ActionEvent event) {

				

				//This will display the selected text from JTextArea to JTextField by highlighting the text or string you want to copy.

				display.setText(txtArea.getSelectedText());

			}

		}

		);