Change JTextField Text Font

Program Description:

Changing JTextField’s text Font is one of its cool abilities because it adds clarity to the text by making it BOLD, ITALIC, or BOLD-ITALIC. The program below is a Java Code that demonstrates on how to change JTextField fonts by using the Java Class Font. The program creates four JTextField with each specified fonts to make it more understandable in terms of properties and implementation of the Class Font.

Output:

Code:

/**
 * File: jtextfieldFonts.java
 * Tiltle: How to Change JTextField Text Font
 * Author: http://java-program-sample.blogspot.com
 */

//Java Core Package
import javax.swing.*;
//Java Extension Package
import java.awt.*;

public class jtextfieldFonts extends JFrame {
 
 //Initializing JTextField and Class Font
 private JTextField bold, plain, italic, bolditalic;
 private Font boldAtt, plainAtt, italicAtt, bolditalicAtt;

 //Setting up GUI
    public jtextfieldFonts() {
     
     //Setting up the Title of the Window
     super("How to Change JTextField Text Font");

     //Set Size of the Window (WIDTH, HEIGHT)
     setSize(300,140);

     //Exit Property of the Window
     setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

     //Constructing JTextField with a size of 20 with it's specified strings
     bold = new JTextField("Bold Text Font",20);
     plain = new JTextField("Plain Text Font",20);
     italic = new JTextField("Italic Text Font",20);
     bolditalic = new JTextField("Bold-Italic Text Font",20);
     
     //Setting the properties of each Font reference
     boldAtt = new Font("Arial", Font.BOLD, 14);
     plainAtt = new Font("Arial", Font.PLAIN, 14);
     italicAtt = new Font("Arial", Font.ITALIC, 14);
     bolditalicAtt = new Font("Arial", Font.BOLD+Font.ITALIC, 14);
     
     //Changing the JTextField Fonts
     bold.setFont(boldAtt);
     plain.setFont(plainAtt);
     italic.setFont(italicAtt);
     bolditalic.setFont(bolditalicAtt);

     //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);

     //Adding the JTextField components to the container
     pane.add(bold);
     pane.add(plain);
     pane.add(italic);
     pane.add(bolditalic);

     /**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) {
     jtextfieldFonts jtff = new jtextfieldFonts();
 }
}

Important Part of the Program:

//Initializing JTextField and Class Font
private JTextField bold, plain, italic, bolditalic;
private Font boldAtt, plainAtt, italicAtt, bolditalicAtt;

//Constructing JTextField with a size of 20 with it's specified strings
bold = new JTextField("Bold Text Font",20);
plain = new JTextField("Plain Text Font",20);
italic = new JTextField("Italic Text Font",20);
bolditalic = new JTextField("Bold-Italic Text Font",20);
     
//Setting the properties of each Font reference
boldAtt = new Font("Arial", Font.BOLD, 14);
plainAtt = new Font("Arial", Font.PLAIN, 14);
italicAtt = new Font("Arial", Font.ITALIC, 14);
bolditalicAtt = new Font("Arial", Font.BOLD+Font.ITALIC, 14);
     
//Changing the JTextField Fonts
bold.setFont(boldAtt);
plain.setFont(plainAtt);
italic.setFont(italicAtt);
bolditalic.setFont(bolditalicAtt);

Posted in: JTextField