Arrays in Java

Arrays in Java — a practical guide to Java arrays with clear examples you can reuse in real projects.

Java Tutorial Series (23/90). Prefer one article? Read the complete Java tutorial.

Short description

Arrays have a fixed length after creation. Indexes start at 0.

Array basics

int[] nums = {10, 20, 30};
System.out.println(nums.length);
System.out.println(nums[1]);