Enumerating the path Program plan: Filename: “PathEnumerator.java” This program file is used to define a class “PathEnumerator”. In the code, Import the required packages. Define a class “PathEnumerator”. Define a method “main()”. Declare a variable “k”. Print the value of “n” and “k”. Set the value of “k” as 2. Call the method “enumeratePaths()” with argument “5” and “2”. Print new line. Set the value of “k” as 3. Print the value of “n” and “k”. Call the method “enumeratePaths()” with argument “7” and “3”. Define a method “enumeratePaths()”. Create an array list “stack”. Call the method “enumerate()”. Define a method “enumerate()”. If the steps are over, Print the stack of paths. If the steps are left to finish, Add the “current” to “stack”. Call the method “enumerate()” recursively. Declare a looping variable “i”. Iterate a “for” loop, If the “current” is less than “last-i+1”, Call the method “enumerate()” recursively.

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Chapter 13, Problem 19PE

Program Plan Intro

Enumerating the path

Program plan:

Filename: “PathEnumerator.java”

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

Import the required packages.

Define a class “PathEnumerator”.

Define a method “main()”.

Declare a variable “k”.

Print the value of “n” and “k”.

Set the value of “k” as 2.

Call the method “enumeratePaths()” with argument “5” and “2”.

Print new line.

Set the value of “k” as 3.

Print the value of “n” and “k”.

Call the method “enumeratePaths()” with argument “7” and “3”.

Define a method “enumeratePaths()”.

Create an array list “stack”.

Call the method “enumerate()”.

Define a method “enumerate()”.

If the steps are over,

Print the stack of paths.

If the steps are left to finish,

Add the “current” to “stack”.

Call the method “enumerate()” recursively.

Declare a looping variable “i”.

Iterate a “for” loop,

If the “current” is less than “last-i+1”,

Call the method “enumerate()” recursively.

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