Chapter 4, Problem 9PE

Program Plan Intro

Program to draw a rectangle

Program plan:

• Import the math package.
• Import the required graphics package.
• Define the main method.
  • Using the object GraphWin(), to display the graphics window.
  • Using the method setCoords(), set the size of the graphics window.
  • Prompt the user for 2 mouse clicks.
  • Store coordinates in variables x1, x2, y1 and y2.
  • Calculate the area and perimeter of the rectangle using the given formula.
  • Using the method Rectangle(), draw a rectangle in the graphics window.
  • Print the area and perimeter of the rectangle.
• Call the function “main()”.