December 7, 2021 - 16) Write a Java program to find the minimum absolute difference between any two elements of the given array? import java.util.Arrays; public class JavaArrayProgram { private static void minimumAbsoluteDifference(int[] inputArray) { Arrays.sort(inputArray); int minimum = Math.abs(inputArray[1] - inputArray[0]); int firstElement = inputArray[0]; int secondElement = inputArray[1]; for (int i = 2; i < inputArray.length; i++) { if(Math.abs(inputArray[i] - inputArray[i-1]) < minimum) { minimum = Math.abs(inputArray[i] - inputArray[i-1]); firstElement = inputArray[i-1]; secondElement = inputArray[i]

You can implement either recursive or iterative quicksort, it's your choice but you cannot use additional buffer, array or list, you must sort array in place. 9. Write a program to find intersection of two sorted arrays in Java? (solution) Another interesting array interview question, where you need to treat the array as Set.

November 28, 2025 - public class TwoDArray { public static void main(String[] args) { int[][] matrix = { {1, 2, 3}, {4, 5, 6}, {7, 8, 9} }; System.out.println("Matrix elements:"); for (int i = 0; i < 3; i++) { for (int j = 0; j < 3; j++) { System.out.print(matrix[i][j] + " "); } System.out.println(); } } } Mastering array programs in Java not only helps you crack interviews but also strengthens your logic-building skills.

December 31, 2025 - The default value for array elements in Java depends on their type: 0 for numeric types, false for boolean, ‘\u0000’ for char, and null for reference types. Also Read - Top 20+ Java Collections Interview Questions With Answers · Here are some important Java array programming interview ...

Your knowledge of handling and manipulating data in arrays will be tested, either directly or indirectly, in most Java programming interviews. The interview can be for any level - beginner or senior; and for any role - Software engineer, Software programmer, Software architect or for Software management roles.

May 18, 2025 - Master Java Arrays with 20+ top interview questions covering single & multidimensional arrays, jagged arrays, and array copying—complete with detailed explanations and code examples. Perfect for beginners & job seekers prepping for Java interviews in 2025!

April 26, 2018 - Java program to check the equality of two arrays. Find all pairs of elements in an integer array whose sum is equal to a given number.

The document outlines common ... finding the second largest element, checking if an array is sorted, reversing an array, finding a missing number, removing duplicates, moving zeros to the end, and finding pairs with a given sum...

October 2, 2025 - Interview Questions · Exercises ... 2025 · 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....

January 16, 2026 - Most important top 55 java array interview questions with best possible answers for freshers or experienced. Array coding questions covered

June 12, 2026 - This method also works for those arrays which contain duplicate elements. Using retainAll() method : This is one of the easiest methods to find the common elements from two arrays. In this method, we create two HashSets using given two arrays and then use reatinAll() method of HashSet to retain only common elements from the two sets. This is one of the most asked java interview program for freshers.

Interviewers may ask questions about how to create and initialize arrays, how to access and manipulate elements in arrays, and how to use arrays in common algorithms and data structures such as sorting and searching.

May 11, 2025 - Having interviewed with over 15 companies and conducting multiple interviews in my current organization, I can confidently say that mastering these array problems is crucial for anyone preparing for software engineering roles. Q1) Find second largest element from the array. If the second largest element doesn’t exist then return -1 Eg: Input: arr[] = [10, 5, 10] Output: 5 Input: arr[] = [10, 10, 10] Output: -1 ... import java.util.Arrays; public class SecondLarge { private static int secondLargest(int[] arr) { //base condition to check array has at least two elements if (arr == null || arr.length < 2) { return -1; } Arrays.sort(arr); for (int i=arr.length-2;i>=0;i--) { if (arr[i] != arr[arr.length-1]) return arr[i]; } return -1; } public static void main(String[] args) { int[] arr = {12,12,12,0,1}; System.out.println(secondLargest(arr)); } } //Output: 1

Learn most frequently asked Java Array Programming Interview Questions and Answers e.g how to compare two arrays in java, reverse an array in java code.

August 16, 2023 - We can not store different types of data in an Array. There are two types of array. ... A single-dimensional array of Java is a normal array where the array contains sequential elements (of the same type). ... The following program creates an array of integers, puts some values in the array, and prints each value to standard output.

May 19, 2023 - The following section contains various programs on Arrays with examples like array operations, types of array, single-dimensional array, sort, and merging operations, mathematical functions on arrays, and array data structures. It also covers programs on insertion and deletions of elements in an array. Each sample program includes a program description, Java code, and program output.

April 23, 2023 - You can search an array to check whether it contains the given element or not using Arrays.binarySearch() method. This method internally uses binary search algorithm to search for an element in an array. 21) What value does array elements get, if they are not initialized? They get default values. 22) What are the different ways to iterate over an array in java?

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