BCA and B.Sc Programs - Programming in Java Lab - Bharathiar University - Practical Program 11- Write a Java Program to draw a circle, square, ellipse and rectangle at the mouse click positions

 

Bharathiar University

Programming Java Lab

Java Program 11

Write a Java Program to draw a circle, square, ellipse and rectangle at the mouse click positions

Source Code

import javax.swing.*;

import java.awt.*;

import java.awt.event.MouseAdapter;

import java.awt.event.MouseEvent;

import java.awt.event.ActionListener;

import java.awt.event.ActionEvent;

public class MouseDraw extends JFrame {

    private Point clickPoint;

    private String selectedShape;

    public MouseDraw() {

        setTitle("MouseDrawer");

        setSize(800, 600);

        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        setLayout(new FlowLayout());           

        addMouseListener(new MouseAdapter() {

            public void mouseClicked(MouseEvent e) {

                clickPoint = e.getPoint();

                repaint();  //calls paint method

            }

        });

        String[] shapes = {"Circle", "Square", "Ellipse", "Rectangle"};

        

        JComboBox<String> shapeCB = new JComboBox<String>(shapes);

        shapeCB.addActionListener(new ActionListener() {

        public void actionPerformed(ActionEvent e){

            selectedShape = (String) shapeCB.getSelectedItem();

           repaint();

}

        });

      

        add(new JLabel("Select Shape: "));

        add(shapeCB);

        

    }

    public void paint(Graphics g) {

       super.paint(g);

        if (clickPoint != null) {

            int size = 50;

            if (selectedShape.equals("Circle")) {

                g.drawOval(clickPoint.x - size / 2, clickPoint.y - size / 2, size, size);

            } else if (selectedShape.equals("Square")) {

                g.drawRect(clickPoint.x - size / 2, clickPoint.y - size / 2, size, size);

            } else if (selectedShape.equals("Ellipse")) {

                g.drawOval(clickPoint.x - size, clickPoint.y - size / 2, size * 2, size);

            } else if (selectedShape.equals("Rectangle")) {

                g.drawRect(clickPoint.x - size, clickPoint.y - size / 2, size * 2, size);

            }

        }

    }

    public static void main(String[] args) {

            MouseDraw shapes = new MouseDraw();

            shapes.setVisible(true);

    }

}

OUTPUT: