Chapter 5, Problem 30PP

Program Plan Intro

Focal length

Program Plan:

• Include the required “import” statement.
• Define the “Test” class.
  • Define the main method using “public static main”.
  • Declare the required variables.
  • Create an object for the “Scanner” class.
  • Get the refractive index, thickness, R1 and R2 values from the user
  • Call the “calculate_FocalLength” method and display the output.
• Define the “calculate_FocalLength” method.
  • Calculate the focal length.
  • Return the value.