📌 In this video, we deep dive into the internal working of StringBuffer in Java, focusing on how memory is allocated and managed during string manipulations.
✅ Topics Covered:
What is the default capacity of a StringBuffer?
What happens when capacity is exceeded?
How does Java resize a StringBuffer using (oldCapacity * 2) + 2
Difference between length() and capacity()
How to check and optimize buffer size during performance tuning
💡 These concepts are critical for performance-conscious developers and commonly asked in Java interviews.
🔧 Demo Included:
Print capacity and length of a buffer
Append large strings and watch capacity grow
Best practices for pre-allocating buffer space
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