When Does a.equals(b) Throw NullPointerException? Understanding Java Equality

This article explains how Java handles null and empty‑string comparisons with a.equals(b), Objects.equals(a, b), and the == operator, detailing the resulting return values, exception behavior, and the underlying source code logic.

Objects.equalsequalityjava

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When Does a.equals(b) Throw NullPointerException? Understanding Java Equality

Architect's Must-Have

Nov 2, 2025 · Fundamentals

How Many Objects Does `String a = "abc"` Actually Create in Java?

This article explains how Java handles string literals and `new String()` expressions, detailing when objects are created in the string constant pool versus the heap, and demonstrates the resulting reference comparisons with example code.

Constant PoolMemory ManagementObject Creation

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How Many Objects Does `String a = "abc"` Actually Create in Java?

Top Architect

Nov 17, 2022 · Fundamentals

Understanding Java String Object Creation and Memory Allocation

This article explains how Java handles string literals and new String objects, detailing the creation of objects in the constant pool and heap, the resulting memory layout, and the outcomes of reference comparisons, while also providing code examples and additional resources.

Constant PoolMemory ManagementObject Creation

0 likes · 5 min read

Understanding Java String Object Creation and Memory Allocation