Question

Write a program that allows the user to specify a circle by clicking on the center and then typing the radius in the JOptionPane dialog box. No other capabilities are required. Circle are drawn upon clicking the center position and entering the value of the radius.

Answer 1

Answer:

Note: the programming specifications are not clear. I implemented as per the sentences provided at the top of the image

Java code:

import javax.swing.*;

import java.awt.*;

import java.awt.geom.*;

import javax.swing.JOptionPane;

//CLASS name DrawingColorCircle

public class DrawingColorCircle

{

//METHOD main

public static void main(String[] args)

{

                    //JOptionpane is getting radius

         JOptionPane.showInputDialog("Enter radius: ");

        DrawingColorCircle c =new DrawingColorCircle();

}

//constructor for circle

public DrawingColorCircle()

{

    //setting frame components

    JFrame frameVal = new JFrame("DRAWING CIRCLE");

    frameVal.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

    frameVal.getContentPane().add(new MyCircleComponent());

    frameVal.setSize(400,400);

    frameVal.setVisible(true);

}

//CIRCLE COMPONENTS CLASS

public class MyCircleComponent extends JComponent

{

//METHOD PAINT

   public void paint(Graphics g1)

{

              int radius = 2* 100;

            int x1 = 0;

              int y1 = 0;

Graphics2D g3= (Graphics2D) g1;

Ellipse2D.Double circle1 = new

Ellipse2D.Double( x1, y1, radius, radius);

              g1.setColor(Color.black);

              g3.draw(circle1);

     }

}

}