Java Tutorial #29 | RECURSIVE METHODS | RECURSION | Tagalog | English | Filipino | 2021

Java Tutorial #29 | RECURSIVE METHODS | RECURSION | Tagalog | English | Filipino | 2021. This Episode will teach how to solve a problem using recursive method in Java. Methods that use iteration are called ITERATIVE while a method that invokes itself is called RECURSIVE. In Java, a method that calls itself is known as a RECURSIVE METHOD. And, this process is known as RECURSION. There are two Main Requirements in creating Recursive Method: Recursive Call and Base Case or Base Condition or Stop Condition.

Recursive Call happens when the method calls itself with an input which is a step closer to the stop condition. Each recursive call will add a new frame to the stack memory of the JVM. So, if we don't pay attention to how deep our recursive call can dive, an out of memory exception may occur.

Base Condition is a condition that causes a recursive method not to make another recursive call. The method returns a value when a certain condition is satisfied, without a further recursive call. If there is no base case in a recursive method, or if the base case is never reached, the stack would grow forever—at least in theory. In practice, the size of the stack is limited. If you exceed the limit, you get a StackOverflowError.

There are two Types of Recursive Call in Java: Tail Recursion- when the recursive call is the last thing that method executes. Head Recursion- when the recursive call is the first thing that method executes. Recursion can help to simplify the implementation of some complicated problems by making the code clearer and more readable. But as we've already seen the recursive approach often requires more memory as the stack memory required increases with each recursive call. As an alternative: if we can solve a problem with recursion, we can also solve it by iteration.

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⌚ ★★★Timestamps ★★★⌚
00:00 Introduction
01:13 Iterative Method
02:00 Head Recursive Void Method
07:00 Tail Recursive Void Method
08:50 Value Returning Recursive Method
14:35 Wrap Up
16:39 OUTRO


?★★★Topics Covered ★★★?
? Java Recursion
? Iterative Method
? Head Recursive Void Method
? Tail Recursive Void Method
? Value Returning Recursive Method


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