Java-Array-Programs

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How to add an element to an Array in Java?

Last Updated: 11 January 2023

Given an array of size n, the task is to add an element x in this array in Java. The size of the array cannot be changed dynamically in Java, as it is done in C/C++. Hence ...read more

Java

Arrays

Java-Array-Programs

Check if a value is present in an Array in Java

Last Updated: 29 December 2022

Given an array, the task is to write a Java program to check whether a specific element is present in this Array or not.Examples:Input: arr[] = [5, 1, 1, 9, 7, 2, 6, 10], ...read more

Technical Scripter 2018

Java-Array-Programs

Reverse an array in Java

Last Updated: 08 April 2022

Given an array, the task is to reverse the given array in Java.Examples:Input : 1, 2, 3, 4, 5Output :5, 4, 3, 2, 1Input : 10, 20, 30, 40Output : 40, 30, 20, 10To know abo ...read more

Technical Scripter 2018

Java-Array-Programs

Remove an Element at Specific Index from an Array in Java

Last Updated: 19 April 2023

Given an array of a fixed length. The task is to remove an element at a specific index from the array.Examples:Input: arr[] = { 1, 2, 3, 4, 5 }, index = 2Output: arr[] = { ...read more

Multidimensional Arrays in Java

Last Updated: 23 September 2023

Array-Basics in Java Multidimensional Arrays can be defined in simple words as array of arrays. Data in multidimensional arrays are stored in tabular form (in row major or...read more

Find the index of an array element in Java

Last Updated: 20 February 2023

Given an array of N elements and an element K, find the index of an array element in Java.Examples:Input: a[] = { 5, 4, 6, 1, 3, 2, 7, 8, 9 }, K = 5Output: 0Input: a[] = { ...read more

Convert List to Array in Java

Last Updated: 06 April 2023

The List interface provides a way to store the ordered collection. It is a child interface of Collection. It is an ordered collection of objects in which duplicate values ...read more

Binary Tree (Array implementation)

Last Updated: 06 April 2023

Given an array that represents a tree in such a way that array indexes are values in tree nodes and array values give the parent node of that particular index (or node). T ...read more

Iterating over Arrays in Java

Last Updated: 11 December 2018

Iterating over an array means accessing each element of array one by one. There may be many ways of iterating over an array in Java, below are some simple ways.Method 1: U ...read more

Java

Java-Arrays

Java-Array-Programs

Conversion of Array To ArrayList in Java

Last Updated: 26 October 2021

Following methods can be used for converting Array To ArrayList:Method 1: Using Arrays.asList() method Syntax: public static List asList(T... a)// Returns a fixed-size Lis...read more

Array vs ArrayList in Java

Last Updated: 04 July 2023

Let us discuss the concept of the arrays and ArrayList briefly in the header to incorporate the understanding in java programs later landing onto the conclusive difference ...read more

Compare Two Arrays in Java

Last Updated: 31 May 2022

While comparing two arrays we can not use "==" operator as it will compare the addresses of the memory block to which both the arrays are pointing. If we want to compare t ...read more

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