Java Strings Explained | String Pool, Memory & Immutability | Core Java Tutorial
CodeSnapBean
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Java Strings Explained | String Pool, Memory & Immutability | Core Java Tutorial
4 просмотра · 12 дней назад
CodeSnapBean
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4 просмотра · 12 дней назад
In this video, we’ll understand Strings in Java from the basics with practical programs and memory diagrams.
Instead of just learning String methods, we’ll focus on the concepts that are frequently asked in Java interviews.
📌 Topics Covered
What is a String in Java?
Is String a class or a data type?
String as a non-primitive/reference type
String Literal
Stack vs Heap
String Constant Pool
How String Pool reuses objects
new String() and memory allocation
== vs equals()
String Immutability
Why is String immutable?
Practical Java programs and memory examples
Example Used:
String name = "CodeSnap";
System.out.println("name ="+name);
//1 - Literls
String s1 = "CodeSnap";
//2 - using new keyword
String s2 = new String("CodeSnap");
String s4 = new String("CodeSnap");
String s3 = "CodeSnap";
System.out.println( s1 == s2);
System.out.println( s1 == s3);
System.out.println( s3 == s4);
We'll understand exactly what happens in memory when these statements execute.
🎯 This Video is Useful For
Core Java beginners
Java developer interviews
Java backend developers
Spring Boot developers
Java coding interview preparation
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