HW4: Bar Chart and Pie Chart

Description

In this homework you are going to write a class Chart.java. The program shows data in both bar chart format and pie chart format.

Data.java

public class Data {
    private String name;
    private double quantity;
    
    public Data(String name, double quantity) {
	this.name = name;
	this.quantity = quantity;
    }
    
    public String getName() {
	return name;
    }
    
    public double getQuantity() {
	return quantity;
    }
}

The class represent a data in a chart, it contains 2 members

name: the name of the data
quantity: you can assume that it is always positive

You don't have to modify this file.

Chart.java

The class represent an array of data (Data[] data) by a bar chart and pie chart. There are 2 constructors

public Chart(Data[] data, Color[] color) : represents the data by a bar chart and pie chart. Use color[i] for data[i]. If there are more data than the color, then use random color for the remaining data.
public Chart(Data[] data): use random color for all the data.

Your program show give similar results as my sample output.

The class extends JFrame
There is horizontal bar chart at the top, The length of the bar chart is draw according the proportion of the quantity of the data. i.e the length of the bar chart is
```
max length times (quantity of the data/total quantity)
```
Each bar follows by the precentage (quantity of the data/total quantity time 100%) and the name of the data
The colors of the bar chart(or pie chart) are given by constructor or by random color

The angle of the data is calculated by

360 times (quantity of the data/total quantity)

make sure that you set the correct size of the JFrame.

Things that I don't care

You don't need to set title
You can use any Font you like
You can have one or 2 decimal places in the percentage calculation. You can use any method to round up the integer using in the percentage. i.e 2/3 can be 66% or 67%. I won't take points off for one precent difference.
You can set the size of the circle. I use radius = 150. But you can use other number.

Here are some sample outputs. Your output show look similar (but not necessarily same as) my output.

Test1
data.length == color.length

import java.awt.*;
import javax.swing.*;

// same number of color and data
public class Test1 {
    public static void main(String[] args) {
	Data[] data = new Data[2];
	data[0] = new Data("Own house", 491882);
	data[1] = new Data("Rent", 783530);
	Color[] color = {Color.blue, Color.red};
	Chart chart = new Chart(data, color);
	chart.setTitle("Los Angeles Housing");
	 chart.setDefaultCloseOperation(javax.swing.JFrame.EXIT_ON_CLOSE);
        chart.setVisible(true);
    }
}

Test2
data.length < color.length

import java.awt.*;
import javax.swing.*;

// more color than data
public class Test2 {
    public static void main(String[] args) {
	Data[] data = new Data[4];
	data[0] = new Data("Charles", 22222.5);
	data[1] = new Data("Dianne", 32000);
	data[2] = new Data("Eric", 10003.25);
	data[3] = new Data("Florence", 5999.99);
	Color[] color = {Color.red, Color.green, Color.yellow, Color.pink, Color.cyan};
	Chart chart = new Chart(data, color);
        chart.setTitle("Family Income"); 
	chart.setDefaultCloseOperation(javax.swing.JFrame.EXIT_ON_CLOSE);
        chart.setVisible(true);
    }
}

Test3
No color
Use random color.
Your result may be different from the output

//  The United States Federal Budget for Fiscal Year 2004
// source : http://www.warresisters.org/piechart.htm

import java.awt.*;
import javax.swing.*;

// no color 
public class Test3 {
    public static void main(String[] args) {
        // the  unit of the money is in Billion
	Data[] data = new Data[5];
	data[0] = new Data("Current Military", 459);
	data[1] = new Data("Past Military", 345);
	data[2] = new Data("Human Resources", 593);
	data[3] = new Data("General Government", 235);
	data[4] = new Data("Physical Resources", 99);
	Chart chart = new Chart(data);
        chart.setTitle("The United States Federal Budget for Fiscal Year 2004"); 
	chart.setDefaultCloseOperation(javax.swing.JFrame.EXIT_ON_CLOSE);
        chart.setVisible(true);
    }
}

Test4
data.length > color.length
Use random color for the remaining data
Your result may be different from the output

//  The United States Federal Budget for Fiscal Year 2004
// source : http://www.warresisters.org/piechart.htm

import java.awt.*;
import javax.swing.*;

// more data than color
public class Test4 {
    public static void main(String[] args) {
        // the  unit of the money is in Billion
	Data[] data = new Data[5];
	data[0] = new Data("Current Military", 459);
	data[1] = new Data("Past Military", 345);
	data[2] = new Data("Human Resources", 593);
	data[3] = new Data("General Government", 235);
	data[4] = new Data("Physical Resources", 99);
	Color[] color = {Color.orange, Color.magenta};
	Chart chart = new Chart(data, color);
        chart.setTitle("The United States Federal Budget for Fiscal Year 2004"); 
	chart.setDefaultCloseOperation(javax.swing.JFrame.EXIT_ON_CLOSE);
        chart.setVisible(true);
    }
}

What to submit

Call your source code file Data.java, Chart.java. Put these files in your submit folder. Do not place this file inside another folder within your submit folder.

Remark

All source code submitted must contain the following information at the beginning of each file:
- Your full name
- Your student ID number
- Your PIC login ID
- Your e-mail address
- Your discussion section number and TA's name
- The assignment number and description
- Honesty pledge
Properly formatted, this information should appear as follows:(Please change the Name, Student ID, PIC ID, E-mail, Discussion
```
 /** Name:        Charles Li 
  * Student ID : 000 000 000
  * PIC ID:      ccli 
  * E-mail:      ccli@math.ucla.edu 
  * Discussion:	 1A, John Baber  
  * Assignment:	 hw3 
  * 
  *  I, Charles Li, pledge that this is my own independent work, which  
  *  conforms to the guidelines of academic honesty as described in the
  * course   syllabus.  
  * 
  */
```

Solution

Chart.java