Chapter 9, Problem 12PE

Program Plan Intro

Random walk

Program Plan:

• Import the header file.
• Define the main method.
  • Call the “printIntro ()” method.
  • Get the input from the user.
  • Call the “avgSteps ()” method and store it in a variable.
  • Display the result.
• Define the “printIntro ()” method.
  • Display the messages.
• Define the “avgSteps ()” method.
  • Set the value
  • Iterate “i” till it reaches 1000
    • Call the “simNSteps ()” method
    • Calculate the “totTravel”
      • Check “totTravel” is equal to 0
        • Set the value
      • Otherwise, calculate the “avgTravel”
      • Return the result.
• Define “simNSteps ()” method
  • Set the value
  • Iterate “i” till it reaches “n”
    • Calculate “x” value
      • Check “x” is greater than 0
        • Increment the “steps” value
      • Check “x” is less than 0
        • Decrement the “steps” value
      • Otherwise, set the value
      • Return the result.
• Call the main method.