Chapter 18, Problem 22PE

Program Plan Intro

Increasing order

Program plan:

ArrayListUtil.java

• Import required packages.
• Definition of class “ArrayListUtil”.
  • Definition of method “incOrder()”.
    • Get the size of the array.
    • Create an object for “ArrayList”.
      • Traverse the loop.
        • Call the method “compareTo()” to compare the values.
        • • Return the value “false”.
      • Return the value “true”

Test.java

• Import the required packages.
• Define the method “Test()”.
  • Definition of “main()” method
    • Create an object “a” for “ArrayList”.
    • Add the values to the list “a”.
    • Print the original values of list “a”
    • Call the method “incOrder()”.
    • Print the expected value.
    • Create an object “a” for “ArrayList”.
    • Add the values to the list “b”.
    • Print the original values of list “b”
    • Call the method “incOrder()”.
    • Print the expected value.
    • Create an object “c” for “ArrayList”.
    • Traverse the loop.
      • Add the values to the integer array list.
    • Print the original and the expected values.
    • Evaluate the value of “c”.
    • Print the original and the expected values.