Tagged articles

Equals vs ==

6 articles · Page 1 of 1

Jun 7, 2026 · Fundamentals

Mastering Java Strings: When to Use equals vs == and Common Pitfalls

Java's String class is immutable and stored in a constant pool; the article explains the difference between == and equals, demonstrates common methods for inspection, transformation, splitting, and conversion, and shows best practices for concatenation with StringBuilder, thread‑safe StringBuffer, and newer utilities like join, repeat, format, and text blocks.

Equals vs ==JavaJava 8

0 likes · 10 min read

Mastering Java Strings: When to Use equals vs == and Common Pitfalls

LuTiao Programming

Apr 6, 2026 · Fundamentals

Think Knowing Java Is Enough in 2026? 10 Core Fundamentals That Define Your Ceiling

The article reveals ten essential Java concepts—from memory model and parameter passing to exception design and static misuse—explaining how each directly impacts performance, reliability, and interview success, and why mastering them is the real ceiling for any backend developer.

ConstructorsEquals vs ==Exceptions

0 likes · 9 min read

Think Knowing Java Is Enough in 2026? 10 Core Fundamentals That Define Your Ceiling

Architecture Digest

Dec 26, 2025 · Fundamentals

When Does a.equals(b) Throw? Understanding Java Null Handling and Objects.equals

This article explains how a.equals(b) behaves with null and empty strings, compares it to Objects.equals, analyzes the underlying source code, and clarifies the difference between reference comparison (a==b) and logical equality (a.equals(b)) in Java.

Equals vs ==JavaNULL handling

0 likes · 5 min read

When Does a.equals(b) Throw? Understanding Java Null Handling and Objects.equals

Java Backend Technology

Jan 17, 2021 · Backend Development

Why Using == on Java Objects Can Crash Your Service: Hidden Pitfalls and Fixes

This article explains how mistakenly using the == operator for Java object comparison, especially with enums and boxed types, can cause runtime failures after framework changes, and also shows how unchecked log growth can fill disks, degrade performance, and how to resolve both issues.

EnumEquals vs ==Java

0 likes · 6 min read

Why Using == on Java Objects Can Crash Your Service: Hidden Pitfalls and Fixes

Full-Stack Internet Architecture

Nov 10, 2020 · Fundamentals

Understanding Java Integer Caching and the Pitfalls of Using == vs equals

This article explains Java's Integer caching mechanism, why using == on wrapper objects can be misleading outside the -128 to 127 range, shows how to control the cache size with JVM options, and demonstrates bytecode inspection with javap to reveal the underlying valueOf calls.

Equals vs ==Integer cachingJVM Options

0 likes · 5 min read

Understanding Java Integer Caching and the Pitfalls of Using == vs equals

Full-Stack Internet Architecture

Mar 11, 2020 · Fundamentals

Understanding Java Integer Caching and Autoboxing: When == Can Mislead

This article explains Java's Integer caching mechanism, why using == to compare wrapper objects can produce unexpected results, how the IntegerCache works, how to adjust its range with JVM options, and demonstrates the behavior through code examples and javap decompilation.

Equals vs ==Integer cachingJava

0 likes · 7 min read

Understanding Java Integer Caching and Autoboxing: When == Can Mislead