Java-Array-Programs Archives

Java Program to Sort 2D Array Across Columns

Last Updated: 18 March 2022

The Vector class implements a growable array of objects. Vectors basically fall in legacy classes but now it is fully compatible with collections. It is found in the java....read more

Java Program to Sort 2D Array Across Left Diagonal

Last Updated: 10 October 2021

The Vector class implements a growable array of objects. Vectors basically fall in legacy classes but now it is fully compatible with collections. It is found in java.util...read more

Java Array mismatch() Method with Examples

Last Updated: 15 November 2024

Themismatch()method in Java is a utility from thejava.util.Arraysclass. It is used to compare two arrays element by element and determines theindex of the first mismatch. ...read more

Sort an Array in Java using Comparator

Last Updated: 24 March 2025

A Comparator is an object that can be used to compare two objects and determine their order. We can use a Comparator to sort a list of objects in any order we can choose, ...read more

Java

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Java-Array-Programs

How to Take Array Input From User in Java?

Last Updated: 17 April 2025

Arrays in Java are an important data structure, and we can add elements to them by taking input from the user. There is no direct method to take input from the user, but w...read more

How to Add Random Number to an Array in Java?

Last Updated: 18 November 2024

To generate an array of integers with random values the nextInt() method from the java.util.Random class is used. From the random number generator sequence, this method re...read more

Last Updated: 13 March 2024

An array is a group of elements with similar data types that are bound together as one. The array allows us to store and manipulate a collection of elements together. Mas...read more

How to Efficiently Remove Duplicates from an Array without using Set?

Last Updated: 27 April 2024

Arrays are a fundamental data structure in Java that stores data of the same type in contiguous memory locations. Removing duplicate elements from an array is a common ope...read more

How to Find the Maximum Element in an Array?

Last Updated: 15 November 2024

In Java, the array is a data structure that allows the users to store data of the same type in contiguous memory locations. To find the maximum element in an Array in Java...read more

How to Get First Element in Array in Java?

Last Updated: 24 December 2024

In Java, to get the first element in an array, we can access the element at index 0 using array indexing. Example 1: Below is a simple example that demonstrates how to acc...read more

Java

Java-Arrays

Java-Array-Programs

How to Get Last Element in Array in Java?

Last Updated: 24 December 2024

In Java, to get the last element in an array, we can access the element at the index array.length - 1 using array indexing. The length property of the array provides its t...read more

Java

Java-Arrays

Java-Array-Programs

How to Check if an Array is Empty or Not in Java?

Last Updated: 09 December 2024

In Java, arrays do not have a built-in method like isEmpty() to check if they are empty. So, we need to use other ways to check if an array is empty in Java.Example: The s...read more

Java Array Empty Check

Last Updated: 09 December 2024

In Java, an array is considered non-empty, if it is not null and its length is greater than 0. It is important to check if an array is not empty before performing operatio...read more

Java

Java-Arrays

Java-Array-Programs

How to Get Subarray in Java?

Last Updated: 09 December 2024

In Java, subarrays are the contiguous portion of an array. Extracting subarrays in Java is common when working with data that needs slicing or partitioning. Java does not ...read more

Java

Java-Arrays

Java-Array-Programs

Java Program to Check if Specified Element is Present in the Array

Last Updated: 09 December 2024

In Java, to check if a specified element is present in an array, we have to iterate through the array and compare each element with the target value. This can be done usin...read more