Topic Preview • Enroll to Read Full Lesson
5.2 String Immutability, String Constant Pool & StringBuilder
Topic Summary
Understand why Strings in Java cannot be altered in-place, how the String Pool optimizes RAM, and when to use StringBuilder.
What You Will Learn
• Contrast `==` (reference equality) with `.equals()` (content equality).
• Explain the String Constant Pool in JVM heap memory.
• Avoid catastrophic $O(N^2)$ memory allocation by using `StringBuilder`.
Included in Java Fundamentals & Object-Oriented Programming • Lifetime access for ₹49