April 2024
Intermediate to advanced
400 pages
12h 57m
English
book
JVM Performance Engineering: Inside OpenJDK and the HotSpot Java Virtual Machine
by Monica Beckwith
Content preview from JVM Performance Engineering: Inside OpenJDK and the HotSpot Java Virtual Machine
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Chapter 2
Performance Implications of Java’s Type System Evolution
The type system is a fundamental aspect of any programming language, and Java is no exception. It governs how variables are declared, how they interact with each other, and how they can be used in your code. Java is known for its (strongly) static-typed nature. To better understand what that means, let’s break down this concept:
Java is a statically type-checked language: That means the variable types are checked (mostly) at compile time. In contrast, dynamically type-checked languages, like JavaScript, perform type checking at runtime. This static type-checking contributes to Java’s performance by catching type errors at compile time, leading to more robust and efficient code. ...
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