JLabel in java (How we create JLabel in java Swing)

Hasan Bakri 9/06/2018 12:24:00 AM Comment

Java JLabel

The object of JLabel category could be a element for putting text in a very instrumentality. it's accustomed show one line of scan solely text. The text are often modified by AN application however a user cannot edit it directly. It inherits JComponent category.

Commonly used Methods:

Methods	Description
String getText()	t returns the text string that a label displays.
void setText(String text)	It defines the one line of text this component will show.
void setHorizontalAlignment(int alignment)	It sets the alignment of the label's contents on the X axis.
Icon getIcon()	It returns the graphic image that the label displays.
int getHorizontalAlignment()	It returns the alignment of the label's contents on the X axis.


package lable_action;

import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.*;

public class Lable_Action extends JFrame implements ActionListener {
    
    
    JLabel l;
    JButton b;
    public static void main(String[] args) {
     
        new Lable_Action();
         
    }
    
    
    public Lable_Action()
    {
        
       
        l=new JLabel();  
        l.setBounds(50,100, 250,20);      
        b=new JButton("ok");  
        b.setBounds(50,150,95,30);  
        b.addActionListener(this);    
        add(b);
       
        add(l);    
        setSize(400,400);  
        setLayout(null);  
        setVisible(true);  
     
    }

    @Override
    public void actionPerformed(ActionEvent e) {
     String word = e.getActionCommand();
     if(word.equals("ok"))
     {
         l.setText("Blue Hat World");
     }
    }
}

java JButton in java

JButton in java (How we create JButton in java Swing)

Hasan Bakri 9/02/2018 09:12:00 PM Comment

Java Button

The JButton class is used to create a categorized button that has platform independent implementation. The utility bring about a few movement when the button is driven. It inherits AbstractButton class.

Creating Button:

JButton btn1 = new JButton("ok");
        btn1.setBounds(50,100,95,30);
        add(btn1);

Commonly used Methods of AbstractButton class:

Methods Description

|============================================

|void setText(String s) || it's miles used to set specific text on button

|==================================================================

|String getText() || it's far used to go back the text of the button.

|==================================================================

|void setEnabled(boolean b) || it's miles used to permit or disable the button.

==================================================================

|void setIcon(Icon b) || it is used to set the required Icon at the button.

==================================================================

| Icon getIcon() || it's miles used to get the Icon of the button.

|==================================================================

|void setMnemonic(int a) || it's far used to set the mnemonic on the button.

|==================================================================

|void addActionListener(ActionListener a) || it is used to feature the action listener to this

object . ===================================================================

JButton Example:


Import javax.swing.*;

public class Button1 {
    
    public static void main(String[] args) {
     
        JFrame f = new JFrame("My First GUI Frame");
        JButton btn1 = new JButton("ok");
        btn1.setBounds(50,100,95,30);
        f.add(btn1);
        
        f.setSize(400, 400);
        f.setLayout(null);
        f.setVisible(true);
   
    }

}

Output:

JButton Example with the Help of OPP Concept Constructor

import javax.swing.*;

public class Button1 {
    
    public static void main(String[] args) {
       
        new Button1();
    }
    
    public Button1()
    {
        JFrame f = new JFrame("My First GUI Frame");
        JButton btn1 = new JButton("ok");
        btn1.setBounds(50,100,95,30);
        f.add(btn1);
        
        f.setSize(400, 400);
        f.setLayout(null);
        f.setVisible(true);
    }
    
}