Chapter 11, Problem 18PE

Program Plan Intro

Random walk

Program Plan:

• Import the header file.
• 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.
• Define the “printIntro ()” method.
  • Display the messages.
• Define the main method.
  • Call the “printIntro ()” method.
  • Get the input from the user.
  • Set the array
  • Iterate “i” until it reaches “n + 1”
    • Append the values
  • Set the value
  • Check “steps” is less than “n” and greater than 0
    • Calculate the “x” value
    • Check “x” is greater than 0
      • Increment the “steps”
      • Increment the “squares”
        • Check “x” is less than 0
        • • Decrement the “steps”
          • Decrement the “squares”
        • Otherwise, set the value
  • Iterate “i” until it reaches “squares”
    • Print the output.
• Call the main method.