Question

Create a Roll application that implements the GUI shown in figure 1 (default images
must be set as shown in figure 1). When the user clicks the Roll button, the program
must roll the dice, change the figures randomly, calculate the sum of the dice and
show it in a label (as shown in figure 2).

Answer 1

DiceGUI.java

import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.util.*;
public class DiceGUI extends JFrame implements ActionListener
{
JLabel l1;
JButton b1;
int x=1,y=1;
DiceGUI(String s) // constructor
{
super(); // calls super class constructor
setSize(500,500); // setting size of frame
setLayout(null);
this.setBackground(Color.WHITE); // setting backgroung color to white
l1=new JLabel(""); // creates JLabel oject
b1=new JButton("Roll Dice"); // creates JButton object
l1.setBounds(100,50,200,30); // setting bounds to JLabel
add(l1); // adds label in frame
b1.setBounds(150,400,200,30); // setting bounds to button
add(b1); // adds button in frame

b1.addActionListener(this); // add action listener on button
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); // default close operation
setVisible(true); // visible frame
}
public void paint(Graphics g) // paint method definition
{
super.paint(g);
if(x==0 && x==1)
{
ImageIcon i=new ImageIcon("C:\\Users\\AKSHAY\\Desktop\\dice1.jpg"); // create imageicon
i.paintIcon(this,g,30,200); //it draws image
}
else
if(x==2)
{
ImageIcon i=new ImageIcon("C:\\Users\\AKSHAY\\Desktop\\dice2.jpg"); // create imageicon
i.paintIcon(this,g,30,200); //it draws image
}
else
if(x==3)
{
ImageIcon i=new ImageIcon("C:\\Users\\AKSHAY\\Desktop\\dice3.jpg"); // create imageicon
i.paintIcon(this,g,30,200); //it draws image
}
else
if(x==4)
{
ImageIcon i=new ImageIcon("C:\\Users\\AKSHAY\\Desktop\\dice4.jpg"); // create imageicon
i.paintIcon(this,g,30,200); //it draws image
}
else
if(x==5)
{
ImageIcon i=new ImageIcon("C:\\Users\\AKSHAY\\Desktop\\dice5.jpg"); // create imageicon
i.paintIcon(this,g,30,200); //it draws image
}
else
if(x==6)
{
ImageIcon i=new ImageIcon("C:\\Users\\AKSHAY\\Desktop\\dice6.jpg"); // create imageicon
i.paintIcon(this,g,30,200); //it draws image
}

if(y==0 && y==1)
{
ImageIcon i=new ImageIcon("C:\\Users\\AKSHAY\\Desktop\\dice1.jpg"); // create imageicon
i.paintIcon(this,g,280,200); //it draws image
}
else
if(y==2)
{
ImageIcon i=new ImageIcon("C:\\Users\\AKSHAY\\Desktop\\dice2.jpg"); // create imageicon
i.paintIcon(this,g,280,200); //it draws image
}
else
if(y==3)
{
ImageIcon i=new ImageIcon("C:\\Users\\AKSHAY\\Desktop\\dice3.jpg"); // create imageicon
i.paintIcon(this,g,280,200); //it draws image
}
else
if(y==4)
{
ImageIcon i=new ImageIcon("C:\\Users\\AKSHAY\\Desktop\\dice4.jpg"); // create imageicon
i.paintIcon(this,g,280,200); //it draws image
}
else
if(y==5)
{
ImageIcon i=new ImageIcon("C:\\Users\\AKSHAY\\Desktop\\dice5.jpg"); // create imageicon
i.paintIcon(this,g,280,200); //it draws image
}
else
if(x==6)
{
ImageIcon i=new ImageIcon("C:\\Users\\AKSHAY\\Desktop\\dice6.jpg"); // create imageicon
i.paintIcon(this,g,280,200); //it draws image
}
}
public void actionPerformed(ActionEvent ae)
{
if(ae.getSource()==b1)
{
Random rn = new Random(); // creates Random class object
x = rn.nextInt(6) + 1;
y = rn.nextInt(6) + 1;
if(x==0)
x=1;
if(y==0)
y=1;
int sum=x+y;
l1.setFont(new Font("Arial",Font.BOLD,18)); // set font to the label
l1.setText("Sum Of Dice= "+sum); // set text on label
repaint(); // calls paint() method
}
}
public static void main(String args[])
{
new DiceGUI("Roll Dice GUI"); // anonymous object of DiceGUI class
}
}

Output

C:\Users\AKSHAY\Desktop>javac DiceGUI.java

C:\Users\AKSHAY\Desktop>java DiceGUI