Chapter 5, Problem 7PP

Program Plan Intro

Quadrilateral

Program plan:

• Include the required header files.
• Define the “Main” class.
• Define the “main()” method,
  • Declare the constant variable.
  • Declare an object for “Scanner” class.
  • Get the x and y coordinates of the first, second, third, and fourth vertices from the user.
  • Calculate the lengths of the sides by calling “distance” method.
  • Check whether quadrilateral is a rectangle, square, parallelogram, or a rhombus.
    • Check whether the quadrilateral is a square or a rhombus.
    • Check whether the quadrilateral is a rectangle or a parallelogram.
  • Otherwise,
    • Declare the required variables and call the “slope” method.
    • Check whether the quadrilateral is a trapezoid or not.
• Define “distance” method.
  • Declare the required variables.
  • Calculate the x-difference and y-difference.
  • Return the result.
• Define the “slope” method.
  • Declare the required variables.
  • Check whether the “x_diff” is less than “DELTA”.
    • Return the result.
  • Otherwise, return the division value of “y_diff” and “x_diff”.