Instructions/Design: Below is a partially written program named AreaRectangle.java. Your job is to complete the program. When it is complete, the program will:

Ask the user to enter the width of a rectangle

Ask the user to enter the length of a rectangle

Display the rectangle' area

I have written the main method, you can copy it from here (that is a dot at end which is shortcut for current dir): cp /pub/cs/cconner/cs111a/SourceCode/Chapter05/AreaRectangle.java . The program calls the following 4 methods, which have not been written. It is your job to write these 4 method definitions:

getLength - This method should ask the user to enter the rectangle's length, and then return that value as a double.

getWidth - This method should ask the user to enter the rectangles' width, and then return that value as a double.

getArea - This method should accept the rectangle's length and width as arguments, and return the rectangle's area as a double. The area is calculated by multiplying the length by the width.

displayData - This method should accept the rectangle's length, width, and area as arguments, and display them in an appropriate message on the screen.

/** You must complete this program by providing 4 methods so it calculates and displays the area of a rectangle. */ import java.util.Scanner; public class AreaRectangle {

public static void main(String[] args) {

double length, // The rectangle's length width, // The rectangle's width area; // The rectangle's area // Get the rectangle's length from the user. length = getLength(); // Get the rectangle's width from the user. width = getWidth(); // Get the rectangle's area. area = getArea(length, width); // Display the rectangle data. displayData(length, width, area);

}

} Sample Output: Here is first run of program (program output in italics and user input in bold/italics ): Enter the rectangle's length: 10 Enter the rectangle's width: 20 The length is 10.0, the width is 20.0 and the area is 200.0. Here is second run of program: Enter the rectangle's length: 12.5 Enter the rectangle's width: 9.5 The length is 12.5, the width is 9.5 and the area is 118.75. Hint: Code that can help you with this assignment can be copied into your own directory by doing this on hills: cp /pub/cs/cconner/cs111a/CupConvertInput.java . (that is dot at end which is shortcut for your current directory) This is update to CupConverter.java in our book but uses standard input instead of JOpotionPane for user input.