introduction of array / what is array in c++/ what is array in programming
Array in Java – Definition, Types & Explanation What is an Array? An array in Java is a reference data type that is used to store multiple values of the same data type in a single variable. It stores elements in contiguous memory locations , which makes data access fast and efficient. Key Features of Array An array can hold multiple values of the same data type . All elements are stored in continuous (contiguous) memory locations . It works using an index number . The index always starts from 0 (zero) . The last index is always size - 1 . Example: If the size of an array is 5 , then the index values will be: 0, 1, 2, 3, 4 So, Last index = Size - 1 = 5 - 1 = 4 Why Use Array? Arrays are useful when: You want to store multiple values in a single variable You need fast access using index You are working with large sets of similar data Types of Arrays in Java There are mainly two types of arr...