Big Java, Binder Ready Version: Early Objects
Big Java, Binder Ready Version: Early Objects
6th Edition
ISBN: 9781119056447
Author: Cay S. Horstmann
Publisher: WILEY
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Chapter 18, Problem 1PP
Program Plan Intro

Pair of minimum and maximum

Program plan:

Filename: “Coin.java”

This code snippet creates a class “Coin”. In the code,

  • Import the required packages.
  • Define a class “Coin”.
    • Declare the class member “value”.
    • Declare the class member “name”.
    • Declare the constructor “Coin()”.
      • Set the values of class members.
    • Define the method “getValue()”.
      • Return “value”.
    • Define the method “getMeasure()”.
      • Return “value”.
    • Define the method “getName()”.
      • Return “name”.
    • Define the method “toString()”.
      • Return the value of “value” and “name”.

Filename: “Measurable.java”

This code snippet creates an interface “Measurable”. In the code,

  • Define an interface “Measurable”.
    • Declare the method “getMeasure()”.

Filename: “Pair.java”

This code snippet creates a class “Pair”. In the code,

  • Define a class “Pair”.
    • Declare the class members “first” and “second”.
    • Define the constructor “Pair()”.
      • Set the class members.
    • Define the getter “getFirst()”.
      • Return the value of “first”.
    • Define the getter “getSecond()”.
      • Return the value of “second”.

Filename: “PairUtil.java”

This code snippet creates a class “PairUtil”. In the code,

  • Define a class “PairUtil”.
    • Define the method “minmax()”.
      • If the length of “a” equal to “0”,
        • Return “null”.
      • Declare a variable “min” of type “E” and set “a[0]” to it.
      • Declare a variable “max” of type “E” and set “a[0]” to it.
      • Iterate a “for” loop,
        • If the value of “element” is less than “min”,
          • Set “min” equal to “element”.
      • If the value of “element” is greater than “max”,
        • Set the value of “max” equal to “element”.
      • Return the pair of “min” and “max”.

Filename: “MinMaxTester.java”

This code snippet creates a class “MinMaxTester”. In the code,

  • Define a class “MinMaxTester”.
    • Define the “main” method.
      • Define an array “coins” of type “Coin” and add elements to array list “coins” by calling the method “add()”
      • Define a pair “mm”.
      • Call the method “getFirst()” and print the result on the screen.
      • Print the expected result.
      • Call the method “getSecond()” and print the result on the screen.
      • Print the expected result.

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