A method that accepts an array of integers and “NumberFormatter” object Program plan: In a file “NumberFormatter.java”, create an interface “NumberFormatter”, Declare the method “format()”. In a file “DefaultFormatter.java”, create a class “DefaultFormatter” that implements “NumberFormatter” interface, Define the method “format()”, Return the formatted value. In a file “FormatIntsTester.java”, create a class “FormatIntsTester”, Define the method “format_Ints()” that takes an integer array and object of “NumberFormatter” as arguments, Create a loop, Print the formatted output. Define the method “main()”, Initialize the array. Print the string heading. Call the method “format_Ints()”.

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Chapter 9, Problem 23PP

Program Plan Intro

A method that accepts an array of integers and “NumberFormatter” object

Program plan:

In a file “NumberFormatter.java”, create an interface “NumberFormatter”,

Declare the method “format()”.

In a file “DefaultFormatter.java”, create a class “DefaultFormatter” that implements “NumberFormatter” interface,

Define the method “format()”,

Return the formatted value.

In a file “FormatIntsTester.java”, create a class “FormatIntsTester”,

Define the method “format_Ints()” that takes an integer array and object of “NumberFormatter” as arguments,

Create a loop,

Print the formatted output.

Define the method “main()”,

Initialize the array.

Print the string heading.

Call the method “format_Ints()”.

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