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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