Pie chart prompt the user at the command line for 4 positive

Pie chart: prompt the user (at the command line) for 4 positive integers, thendraw a pie chart in a window. Convert the numbers to percentages of thenumbers’ total sum; color each segment differently; use Arc2D. No text fields(other than the window title) are required. Provide a driver in a separatesource file to test your class.

Can someone please write this for me in Java? Thank you.

Solution

import java.awt.Color;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.Rectangle;
import java.util.Scanner;
import javax.swing.JComponent;
import javax.swing.JFrame;

class Slice {
double value;
Color color;
public Slice(double value, Color color) {
this.value = value;
this.color = color;
}
}
class MyComponent extends JComponent {
Scanner reader = new Scanner(System.in); // Reading from System.in

//System.out.println(\"Enter a number: \");
int a = reader.nextInt();
int b = reader.nextInt();
int c = reader.nextInt();
int d = reader.nextInt();

Slice[] slices = { new Slice(a, Color.black),
new Slice(b, Color.green),
new Slice(c, Color.yellow), new Slice(d, Color.red) };
MyComponent() {}
public void paint(Graphics g) {
drawPie((Graphics2D) g, getBounds(), slices);
}
void drawPie(Graphics2D g, Rectangle area, Slice[] slices) {
double total = 0.0D;
for (int i = 0; i < slices.length; i++) {
total += slices[i].value;
}
double curValue = 0.0D;
int startAngle = 0;
for (int i = 0; i < slices.length; i++) {
startAngle = (int) (curValue * 360 / total);
int arcAngle = (int) (slices[i].value * 360 / total);
g.setColor(slices[i].color);
g.fillArc(area.x, area.y, area.width, area.height,
startAngle, arcAngle);
curValue += slices[i].value;
}
}
}
public class Main {
public static void main(String[] argv) {

System.out.println(\"Enter 4 numbers: \");

JFrame frame = new JFrame();
frame.getContentPane().add(new MyComponent());
frame.setSize(300, 200);
frame.setVisible(true);
}
}