Chapter 18, Problem 21PE

Program Plan Intro

Palindrome

Program plan:

ArrayListUtil.java

• Import required packages.
• Definition of class “ArrayListUtil”.
  • Definition of method “isPalindrome()”.
    • Get the size of the array.
    • Create an object for “ArrayList”.
      • Traverse the loop.
        • Check the condition and return “false” if the condition satisfies.
      • Return “true” if the condition fails.

Test.java

• Import the required packages.
• Define the method “Test()”.
  • Definition of “main()” method
    • Create an object for “ArrayList”.
    • Add the values to the list.
    • Call the method “isPalindrome()”.
    • Create an object for “ArrayList”.
    • Add the values to the list.
    • Call the method “isPalindrome()”.
    • Print the original values of list “a”.
    • Print the expected value.
    • Print the original values of list “b”.
    • Print the expected value.
    • Create an object for color.
    • Add the colors to the list.
    • Print the original values of list “c”.
    • Print the expected value.