To find the size of a Java array, query an array’s length property. The Java array size is set permanently when the array is initialized. The size or length count of an array in Java includes both ...

Examples of generic types in Java Raw types vs. generics Why use generics? Generics are commonly used in the Java Collections Framework with java.util.List, java.util.Set, and java.util.Map.

Modern applications might need to support millions of users, but OS threading limits present a problem. Here's how Java 21 virtual threads solve it.