Wrapper Class in Java: Is It Mutable or Immutable? | Wrapper pooling explained
Description: Welcome to our deep dive into Java’s Wrapper Classes! In this video, we’ll explore the key concepts of mutability and immutability as they relate to Java wrapper classes. Learn how wrapper classes like Integer, Character, Boolean, and others convert primitive data types into objects—and why they are always immutable.
We also cover the Object Pooling mechanism used in Java to optimize memory usage for certain wrapper classes, including:
Integer Pooling for values between -128 and 127
Caching in other wrapper classes like Byte, Short, Long, Character, and Boolean
Why Float and Double do not use object pooling.
By the end of this video, you'll understand how Java manages memory with these classes and how it affects your code!
Java concepts playlist: • Java concepts
Topics Covered:
0:00 Java Wrapper Classes Overview
1:12 How does jvm create or update wrapper class value
1:54 Wrapper class visualisation
2:27 Why is wrapper class immutable?
3:20 Wrapper class pooling ?
4:00 Integer wrapper class pooling visualisation
5:33 Range of integer pooling
7:24 How to compare wrapper class in java?
8:31 Wrapper class pooling range
Wrapper Class Pooling Explained
Performance and Memory Optimization with Wrapper Classes
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#Java #WrapperClasses #Mutability #Immutability #MemoryOptimization #Programming #IntegerPool #JavaPerformance #javaprogramming #wrapperclasses #objectorientedprogramming
#memorymanagement #jvm
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