EBK BIG JAVA: EARLY OBJECTS, INTERACTIV
EBK BIG JAVA: EARLY OBJECTS, INTERACTIV
6th Edition
ISBN: 8220102010314
Author: Horstmann
Publisher: YUZU
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Chapter 13, Problem 2RE
Program Plan Intro

Recursion:

  • Java-recursion is a mechanism in which a method continuously calls itself.
  • In java, a method which calls itself is called recursive method.
  • Using this mechanism, some problems can be solved easily.
  • For example, problems like, Tower of Hanoi(TOH), Inorder/Preorder/Postorder Tree Travels, DFS of Graph are solved using recursion.
  • Syntax of recursive methods,

    //define recursive method

    returntype methodname()

    {

//code to be executed

//calling same method  

methodname();

}

  • In the above code, a method “methodname()” is a recursive method because, in the definition, this method calls by itself.

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