Chapter 13, Problem 6PE

Program Plan Intro

Reversing a sentence

Program plan:

Filename: “Sentence.java”

This program file is used to define a class “Sentence”. In the code,

• Define a class “Sentence”.
  • Declare class members “text”.
  • Define a constructor “Sentence()”.
    • Initialize the “text”.
  • Define a method “reverse()”.
    • Call the method “reverse()”.
  • Define a method “reverse()”.
    • If the “start” is greater than or equal to “end”,
      • Return.
        • Call the method “reverse()” to reverse the substring.
  • Define the method “getText()”.
    • Return the “text”.

Filename: “SentenceDemo.java”

This program file is used to define a class “SentenceDemo”. In the code,

• Define a class “SentenceDemo”.
  • Define a method “main()”.
    • Create the object “greeting” of class “Sentence”.
    • Call the method “reverse()”.
    • Print “text” by calling “getText()”.
    • Print the expected result.