JavaArrays

Array Operations in Java

Learn common array operations in Java such as searching, sorting, copying, and comparing arrays with practical examples.

Array Operations in JavaLink to this section

Array operations allow developers to manipulate and process array data efficiently. Common operations include searching, sorting, copying, and comparing array elements.

These operations are essential for solving real-world problems and competitive programming tasks.

Searching Elements in an ArrayLink to this section

Searching means finding whether a specific value exists in an array and determining its position.

tip

Linear search is simple but slower for large arrays.

Sorting ArraysLink to this section

Sorting arranges array elements in ascending or descending order. Java provides built-in support for sorting arrays.

note

Sorting improves searching efficiency.

Copying ArraysLink to this section

Copying creates a duplicate of an existing array.

tip

Copying arrays helps prevent unintended data modification.

Comparing ArraysLink to this section

Array comparison checks whether two arrays contain the same elements.

warning

Using == compares references, not array contents.

Reversing an ArrayLink to this section

Reversing an array changes the order of elements.

Array Operations in Java

Question 1 of 5

Which method is used to sort an array in Java?

sort()

Arrays.sort()

Collections.sort()

array.sort()

Array Operations in Java

medium

Implement a program to search for an element using linear search.
Sort an integer array in descending order.
Copy elements from one array to another and verify the result.
Write a program to compare two arrays for equality.
Reverse an array without using any built-in method.