Question

WRITE a program in JAVA using GRAPHICAL USER INTERFACE to make fruit and vegetable display panel with a toggle switch.(make two displays panel 1 for fruit and the other for vegetables , if we press the toggle switch then the 1st panel will show and if we again press the switch then the 1st will hide and other will show) and vice versa.

Answer 1

//pls save it as PanelShowHide.java
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;

public class PanelShowHide extends JFrame implements ItemListener {

JToggleButton button = new JToggleButton("ON"); //create toggle button
JPanel pFruits = new JPanel();       //create fruit panel
JPanel pVegitables = new JPanel();   //create vegitable panel

PanelShowHide() {
setLayout(new FlowLayout()); //set frame layout as flowlayout
setTitle("Fruit Vegitables"); //set frame title

//pFruits.setLayout(new GridLayout(3, 1)); //set panel's layout as grid if you want labels vertically added
//add 3 labels to fruits panel
       pFruits.add(new JLabel("Apple"));
       pFruits.add(new JLabel("Banana"));
       pFruits.add(new JLabel("Cherry"));

//pVegitables.setLayout(new GridLayout(3, 1)); //set panel's layout as grid if you want labels vertically added
//add 3 labels to vegitables panel
       pVegitables.add(new JLabel("Potato"));
       pVegitables.add(new JLabel("Tomato"));
       pVegitables.add(new JLabel("Onion"));

pFruits.setVisible(true);         //show fruits panel
pVegitables.setVisible(false);   //hide vegitables panel
  
add(pFruits);    //add panel to frame
add(pVegitables); //add panel to frame
add(button);   //add toggle button to frame
  
button.addItemListener(this);   //add event listener to button to handle button event
setSize(300, 200);    //set frame's size
setVisible(true);   //show frame
}

public void itemStateChanged(ItemEvent eve) { //when button is clicked
if (button.isSelected()) { //if button is selected/pressed down show vegitables panel
pFruits.setVisible(false);
pVegitables.setVisible(true);
button.setText("OFF");
} else {                           //otherwised show fruits panel
pFruits.setVisible(true);
pVegitables.setVisible(false);
button.setText("ON");
}
}

public static void main(String args[]) {
      
       //create our frame
PanelShowHide f = new PanelShowHide();
}
}

Fruit Vegitables Apple Banana Cherry ON

匕Fruit Vegtables Potato Tomato Onion