Chapter 9, Problem 23PE

Program Plan Intro

A method “process()”

Program plan:

• In a file “Sequence.java”,
  • Create a package.
  • Import a necessary package.
  • Create an interface “Sequence”,
    • Declare a method “next()”.
    • Define a method “process()”,
      • Declare an array.
      • Create loop till the value passed as an argument,
        • Assign the value returned from “next()”.
        • Calculate one’s place.
        • Increment the array element at the one’s place by “1”.
      • Print the array.
• In a file “SquareSequence.java”, create a package and then a class “SquareSequence”,
  • Declare the variable.
  • Define the method “next()”,
    • Increment the value by “1”.
      • Return the multiplied value.
• In a file “SequenceProcessTest.java”, create a package and then a class “SequenceProcessTest”,
  • Define the method “main()”,
    • Create object for “SquareSequence”.
    • Call the method “process()”.
    • Print the expected sequence of values.