Change JTextField Text Font Size

Program Description:

Changing JTextField’s font size is one of the useful features in java where you can change the size of the JTextField text using integer numbers. The program below demonstrates on how to this by using the Class Font.

Output:

Code:

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

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

public class jtextfieldFontSize extends JFrame {
 
 //Initializing JTextField and Class Font
 private JTextField s10, s12, s14, s16;
 private Font s10lAtt, s12Att, s14Att, s16Att;

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

     //Set Size of the Window (WIDTH, LENGTH)
     setSize(350,140);

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

     //Constructing JTextField with it's specified strings
     s10 = new JTextField("10 Text Font Size",22);
     s12 = new JTextField("12 Text Font Size",18);
     s14 = new JTextField("14 Text Font Size",18);
     s16 = new JTextField("16 Text Font Size",15);
     
     //Setting the properties of each Font reference
     s10lAtt = new Font("Arial", Font.PLAIN, 10);
     s12Att = new Font("Arial", Font.PLAIN, 12);
     s14Att = new Font("Arial", Font.PLAIN, 14);
     s16Att = new Font("Arial", Font.PLAIN, 16);
     
     //Changing the JTextField Font Size using Font class references
     s10.setFont(s10lAtt);
     s12.setFont(s12Att);
     s14.setFont(s14Att);
     s16.setFont(s16Att);

     //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.LEFT);
     pane.setLayout(flow);

     //Adding the JTextField components to the container
     pane.add(s10);
     pane.add(s12);
     pane.add(s14);
     pane.add(s16);

     /**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) {
     jtextfieldFontSize jtfs = new jtextfieldFontSize();
 }
}

Important Part of the Program:

//Initializing JTextField and Class Font
private JTextField s10, s12, s14, s16;
private Font s10lAtt, s12Att, s14Att, s16Att;

//Constructing JTextField with it's specified strings
s10 = new JTextField("10 Text Font Size",22);
s12 = new JTextField("12 Text Font Size",18);
s14 = new JTextField("14 Text Font Size",18);
s16 = new JTextField("16 Text Font Size",15);
     
//Setting the properties of each Font reference
s10lAtt = new Font("Arial", Font.PLAIN, 10);
s12Att = new Font("Arial", Font.PLAIN, 12);
s14Att = new Font("Arial", Font.PLAIN, 14);
s16Att = new Font("Arial", Font.PLAIN, 16);

//Changing the JTextField Font Size using Font class references
s10.setFont(s10lAtt);
s12.setFont(s12Att);
s14.setFont(s14Att);
s16.setFont(s16Att);

Posted in: JTextField