Open In App

Java Array Programs

Last Updated : 22 Jun, 2024
Summarize
Comments
Improve
Suggest changes
Like Article
Like
Save
Share
Report
News Follow

An array is a data structure consisting of a collection of elements (values or variables), of the same memory size, each identified by at least one array index or key. An array is a linear data structure that stores similar elements (i.e. elements of similar data type) that are stored in contiguous memory locations. This article provides a variety of programs on arrays, including examples of operations such as sorting, merging, insertion, and deletion of elements in a single-dimensional array.

Additionally, we will discuss the basics and advanced Java Arrays programs and for each type of program, we’ve provided illustrative examples to further enhance your learning. Each program comes with a detailed description, Java code, and output. All of the examples have been thoroughly tested on both Windows and Linux systems.

Table of Content

Java Array Programs: Basic Array Questions

Java Array Programs: Advance Array Questions

Java Array Programs: Searching and Sorting Questions

Conclusion

In Conclusion, By practicing these Java arrays questions you will get enough confidence to face any array questions in your interview.

Additionally, you can also take a look at our Java interview questions 2023.

Java Arrays Program – FAQs

1. What is an example of an array in real life?

Here are some examples of arrays that we see in our day-to-day life –

Student Grades: In a classroom, you can use an array to store the grades of each student in a particular subject. Each element of the array would represent the grade of a specific student.

List of Phone Contacts: Your smartphone’s contact list is essentially an array. Each entry in the list represents a contact, and you can easily search, add, or delete contacts using array-like data structures.

High Scores in a Game: Video games often use arrays to store and display high scores achieved by players. Each element of the array represents a player’s score.

2. What is array in Java with example?

An array is a group of similar elements (i.e. elements of similar datatype) that are stored in a sequence of memory locations. for example, if we wish to store the contacts on our phone, then the software will simply place all our contacts in an array.

3. What are the different types of arrays in Java?

In programming languages like Java and many others, arrays come in two primary types based on their dimensions: Single-Dimension Arrays and Multi-Dimensional Arrays.



https://media.geeksforgeeks.org/auth/avatar.png
GeeksforGeeks
News
Improve
Next Article
Java Array Programs

Similar Reads

Output of Java Programs | Set 55 (Java Collections Framework)
Pre-requisites: Java Collection Framework. 1. What is the Output of following Java Program? import java.util.*; class Demo { public static void main(String[] args) { ArrayList<Integer> arr = new ArrayList<Integer>(); arr.add(11); arr.add(2); arr.add(3); arr.add(5); arr.add(7); arr.remove(new Integer(7)); arr.remove(2); for (int i = 0; i
6 min read
Java Pattern Programs - Learn How to Print Pattern in Java
In many Java interviews Star, number, and character patterns are the most asked Java Pattern Programs to check your logical and coding skills. Pattern programs in Java help you to sharpen your looping concepts(for loop). Now if you are looking for a place to get all the Java pattern exercises with solutions, then stop your search here. Here we have
15+ min read
Java Exercises - Basic to Advanced Java Practice Programs with Solutions
Looking for Java exercises to test your Java skills, then explore our topic-wise Java practice exercises? Here you will get 25 plus practice problems that help to upscale your Java skills. As we know Java is one of the most popular languages because of its robust and secure nature. But, programmers often find it difficult to find a platform for Jav
8 min read
Java Programs - Java Programming Examples
In this article, we will learn and prepare for Interviews using Java Programming Examples. From basic Java programs like the Fibonacci series, Prime numbers, Factorial numbers, and Palindrome numbers to advanced Java programs. Java is one of the most popular programming languages today because of its simplicity. Java programming concepts such as co
12 min read
Output of Java Programs | Set 54 (Vectors)
Prerequisite : Vectors in Java Basics 1. What is the Output Of the following Program Java Code import java.util.*; class demo1 { public static void main(String[] args) { Vector v = new Vector(20); System.out.println(v.capacity()); System.out.println(v.size()); } } Output: 20 0 Explanation: function - int capacity( ) Returns the capacity of the vect
6 min read
Output of Java programs | Autoboxing and Unboxing
Prerequisite - Autoboxing and unboxing in Java 1)What is the output of the following program? class Main { public static void main(String[] args) { Double x1, y1, z1; double x2, y2, z2; x1 = 10.0; y1 = 4.0; z1 = x1 * x1 + y1 * y1; x2 = 10.0; y2 = 4.0; z2 = x2 * x2 + y2 * y2; System.out.print(z1 + " "); System.out.println(z2); } } Options:
3 min read
Compile and Run Java Programs in Sublime Text in Linux
Sublime Text is a free minimalist coding editor developed by Sublime HQ for desktop use. This development and IT program enable you to solely focus on your code, leaving all the other types of eye-candy out. Procedure: Open terminal and the specific command are entered there in order to check for the software is there or not. Existence will be disp
2 min read
How to Write Robust Programs with the Help of Loops in Java?
Here we will discuss how we can write effective codes with the help of loops. It is a general perception that the approach using loops is treated as naive approach to solve a problem statement. But still, there is a huge scope of improvisation here. So basically, a loop statement allows us to execute a statement or group of statements multiple time
4 min read
Java OpenCV Programs - Basic to Advanced
Java is a popular programming language that can be used to create various types of applications, such as desktop, web, enterprise, and mobile. Java is also an object-oriented language, which means that it organizes data and behaviour into reusable units called classes and objects. Java is known for its portability, performance, security, and robust
2 min read
Java Threading Programs - Basic to Advanced
Java threading is the concept of using multiple threads to execute different tasks in a Java program. A thread is a lightweight sub-process that runs within a process and shares the same memory space and resources. Threads can improve the performance and responsiveness of a program by allowing parallel execution of multiple tasks. Java threading pr
3 min read
Java Programs Examples on Apache PDFBox
Apache PDFBox is an open-source Java library that allows you to work with PDF documents. You can use Apache PDFBox to create new PDF documents, manipulate existing ones, and extract content from them. Apache PDFBox also provides several command-line utilities for common tasks, such as splitting, merging, validating, and signing PDF files. Apache PD
3 min read
Few Tricky Programs in Java
Comments that execute : Till now, we were always taught "Comments do not Execute". Let us see today "The comments that execute" Following is the code snippet: public class Testing { public static void main(String[] args) { // the line below this gives an output // \u000d System.out.println("comment executed"); } } Output: comment executed
2 min read
Programs for printing pyramid patterns in Java
This article is aimed at giving a Java implementation for pattern printing. Simple pyramid pattern Java Code import java.io.*; // Java code to demonstrate star patterns public class GeeksForGeeks { // Function to demonstrate printing pattern public static void printStars(int n) { int i, j; // outer loop to handle number of rows // n in this case fo
11 min read
Output of Java programs | Set 10 (Garbage Collection)
Prerequisite - Garbage Collection in Java Difficulty level : Intermediate In Java, object destruction is taken care by the Garbage Collector module and the objects which do not have any references to them are eligible for garbage collection. Below are some important output questions on Garbage collection. Predict the output of following Java Progra
4 min read
Output of Java Programs | Set 12
1) What is the output of the following program? Java Code public class Test implements Runnable { public void run() { System.out.printf("%d", 3); } public static void main(String[] args) throws InterruptedException { Thread thread = new Thread(new Test()); thread.start(); System.out.printf("%d", 1); thread.join(); System.out.pri
5 min read
Output of Java programs | Set 13 (Collections)
Prerequisite - Collections in Java 1) What is the output of the following program? Java Code import java.util.*; public class priorityQueue { public static void main(String[] args) { PriorityQueue<Integer> queue = new PriorityQueue<>(); queue.add(11); queue.add(10); queue.add(22); queue.add(5); queue.add(12); queue.add(2); while (queue.
3 min read
Output of Java programs | Set 24 (Final Modifier)
Difficulty level : Easy Prerequisite : final keyword in java Predict the output of following Java Programs: What will be output of following program? class Test { final int MAXIMUM; final double PI; public Test(int max) { MAXIMUM = max; } public Test(double pi) { PI = pi; } public static void main(String[] args) { Test t1 = new Test(1500); Test t2
3 min read
Output of Java Programs | Set 32
Prerequisite : Arrays in Java Question 1. What is the output of following program? class ArrayDemo { public static void main(String[] args) { int arr1[] = { 1, 2, 3, 4, 5 }; int arr2[5] = { 1, 2, 3, 4, 5 }; for (int i = 0; i < 5; i++) System.out.print(arr1[i] + " "); System.out.println(); for (int i = 0; i < 5; i++) System.out.print
3 min read
Output of Java Programs | Set 42 (Arrays)
Prerequisite : Java Arrays Question 1. What is the output of this question? class Test1 { public static void main(String[] args) { int arr[] = new int[5]; int arr2[] = new int['a']; byte bt = 10; int arr3[] = new int[bt]; System.out.println(arr.length); System.out.println(arr2.length); System.out.println(arr3.length); } } Option A) Error B) Runtime
3 min read
Output of Java Programs | Set 47 (Arrays)
Prerequisite : Arrays in Java Question 1. What is the output of this question? class Test1 { public static void main(String[] args) { int arr[] = { 11, 22, 33 }; for (int i = 0; i < arr.length; i++) System.out.print(arr[i] + " "); System.out.println(); int arr2[] = new int[3]; arr2[] = { 11, 22, 33 }; for (int i = 0; i < arr2.length
2 min read
Java Networking Programs - Basic to Advanced
Java allows developers to create applications that can communicate over networks, connecting devices and systems together. Whether you're learning about basic connections or diving into more advanced topics like client-server applications, Java provides the tools and libraries you need. This Java Networking programs will guide you through essential
3 min read
Java Apache POI Programs - Basic to Advanced
This Java Apache POI program guide provides a variety of programs on Java POI, that are frequently asked in the technical round in various Software Engineering/core JAVA Developer Interviews. Additionally, All practice programs come with a detailed description, Java code, and output. Apache POI is an open-source java library to create and manipulat
3 min read
Java String Programs
A String in Java is a sequence of characters that can be used to store and manipulate text data and It is basically an array of characters that are stored in a sequence of memory locations. All the strings in Java are immutable in nature, i.e. once the string is created we can't change it. This article provides a variety of programs on strings, tha
4 min read
Java File Handling Programs
Java is a programming language that can create applications that work with files. Files are containers that store data in different formats, such as text, images, videos, etc. Files can be created, read, updated, and deleted using Java. Java provides the File class from the java.io package to handle files. The File class represents a file or a dire
3 min read
Java Collection Programs - Basic to Advanced
As it cleared from its name itself "Collection" it is a pre-defined collective bunch of classes and Interfaces present in the "Collection Framework" in Java. Their Classes, Interfaces and Methods are frequently used in competitive programming. This article provides a variety of programs on Java Collections, that are frequently asked in the Technica
4 min read
Java Directories Programs: Basic to Advanced
Directories are an important part of the file system in Java. They allow you to organize your files into logical groups, and they can also be used to control access to files. In this article, we will discuss some of the Java programs that you can use to work with directories. We will cover how to create directories, delete directories, check if a d
3 min read
Java JDBC Programs - Basic to Advanced
This article provides a variety of programs on JDBC, that are frequently asked in the technical round in various Software Engineering/JAVA Backend Developer Interviews including various operations such as CREATE, INSERT, UPDATE, DELETE and SELECT on SQL Database etc. Additionally, all programs come with a detailed description, Java code, and output
3 min read
Output of Java Programs | Set 14 (Constructors)
Prerequisite - Java Constructors 1) What is the output of the following program? [GFGTABS] Java class Helper { private int data; private Helper() { data = 5; } } public class Test { public static void main(String[] args) { Helper help = new Helper(); System.out.println(help.data); } } [/GFGTABS]a) Compilation error b) 5 c) Runtime error d) None of
3 min read
Java Regex Programs - Basic to Advanced
In Java, Regular Expressions or Regex (in short) in Java is an API for defining String patterns that can be used for searching, manipulating, and editing a string in Java. Regular Expressions in Java are provided under java.util.regex package. This consists of 3 classes and 1 interface. In Java Interviews, Regex questions are generally asked by Int
5 min read
Communication Between two Programs using JSON
JSON stands for JavaScript Object Notation. To communicate between computer and human we use a programming language. To communicate between two programs, there must be a common data format and here we use JSON format. Let us say you have an application with Frontend written in Python and Backend written in Java. Now you need to communicate between
3 min read
Article Tags :
Practice Tags :
three90RightbarBannerImg
We use cookies to ensure you have the best browsing experience on our website. By using our site, you acknowledge that you have read and understood our Cookie Policy & Privacy Policy
Lightbox