Archive for category Swing

Making Simple JTable

The JTable is almost great component of Java Swing which is used to display records of any data.
Specially JTable are used for displaying records which are retrived from the database like MySQL, ORACLE ,Excel and other…

Simply JTable has it’s default model for displaying the records in format.
In this blog we would just demonstrate a simple JTable where all the data records are being assigned by developers.

Ok, here is a detail codes of Making simple JTable:

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This JFrame is a class which is located at the java package javax.swing

JFrame helps to form applet , this class is one type of Container where different Components can be

added by getContentPane() and add() method of this class.


The JFrame is one of the static or predefined Frame where there is limitation of extending the Frame feature

All the classes of


package are predefined applet components. It’s design is also static on all

operating system. There is platform independent design of JButton,JLabel,JTextField bar and all things. Here we use JFrame for the

independent of the application.

Where as in the context of


The components like Button,Label all are platform indendent as well.

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GUI (Graphical User Interface)

An applet is the software components or a small application which can run the program via JAVA programming Language.

Applets are on either desktop or on the web pages too.
The applets are mostly used for the GUI end user clients. The Applets are in GUI form.

Basically GUI is being used by the help of the JFrame which is located at the javax.swing

JFrame is the first platform for the deployment of the GUI applications. The Container classes are used to add the components at JFrame.

Some essential classes for the developing GUI app are:

  • JFrame
  • JPanel
  • JLabel
  • JButton
  • JTextField
  • and other classes ..

First of all if we are going to develop a small GUI program which can display the only the text;

[source language=’java’]
//import directives
import javax.swing.*;

public class Text1 extends JFrame{

public Text1() {
JLabel label = new JLabel(“Hello JAVA !!!”);



public static void main (String[] args) {
// invoking constructor
new Text1();


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Trick of Positioning the Containers of JFrame

Many developers want their own Layout Manager with user-defined so JAVA has provided a separate method for the every container of JFrame Component and that method is setBounds(). This method helps the developers to position the container as per their need .

About SetBounds() method:

This method consists four parameter

     xxx.setBounds(int x_axis, int y_axis, int width, int height);

We can arrange the containers with the help of this method easily. Read the rest of this entry »

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Frame Height in Applet

Actually the the height we defined for JFrame may differ as what we assume . In windows JFrame uses its height including it’s title bar and the bottom border of window frame.It can be illustrated below :
Let’s we code the JFrame size.

In syntax: JFrame_var_name.setSize(Width_px, Height_px);
foreg.  xxx.setSize(100, 100);

In this code we can see that we defined a JFrame size to 100px width and 100px height. But actually some programmer feels problem on the height of the windows size , even we had declare the size of the JFrame to 100. The JFrame height includes the title bar and it’s bottom liner height.

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