Create a model, named ChartModel, which holds data in an array of double elements named data, and the names for the data in an array of strings named dataName. For example, the enrollment data {200, 40, 50, 100, 40} stored in the array data are for {"CS", "Math", "Chem", "Biol", "Phys"} in the array dataName. These two properties have their respective get methods, but not individual set methods. Both properties are set together in the setChartData(String[] newDataName, double[] newData) method so that they can be displayed properly. Create a view named PieChart to present the data in a pie chart, and create a view named BarChart to present the data in a bar chart, as shown in Figure (a).

In addition, create a ChartController that obtains the array of doubles (data) and the array of strings (dataname) from the user.

(Hint: Each pie represents a percentage of the total data. Color the pie using the colors from an array named colors, which is {Color.red, Color.yellow, Color.green, Color.blue, Color.cyan, Color.magenta, Color.orange, Color.pink, Color.darkGray}. Use colors[i % colors.length] for the ith pie. Use black color to display the data names.) )