Author: Arpit Mandliya

If you want to practice data structure and algorithm programs, you can go through data structure and algorithm interview questions. Problem : Given a  array,we need to find all pairs whose sum is equal to number X. For example: [crayon-68c195a3c1952503586581/] Solution : Solution 1: You can check each and every pair of numbers and find the […]

In my previous post, I have reviewed an OCAJP 8 mock exam simulator which I have used for the exam preparation. One of the exam objectives in OCAJP 8 exam is “Manipulate data using the StringBuilder class and its methods”. This exam objective tests your knowledge on how to write StringBuilder class and use its […]

In this post, I  will share about Whizlabs OCAJP 8 exam simulator as it might help OCAJP 8 aspirates as it helped me. I was going through OCAJP 8 course recently and it includes lambda expressions, default methods and various functional interface such as Consumer, Predicate etc. It is quite hard to pass OCAJP 8 because […]

If you want to practice data structure and algorithm programs, you can go through data structure and algorithm interview questions. Problem : Given a sorted array,we need to find a pair whose sum is closed to number X in Array. For example: [crayon-68c195a3c305c749233853/] Solution : Solution 1: You can check each and every pair of numbers […]

If you want to practice data structure and algorithm programs, you can go through data structure and algorithm interview questions. Problem : Given array of +ve and -ve integers ,we need to find a pair whose sum is closed to Zero in Array. For example: [crayon-68c195a3c34ef548569832/] Solution : Solution 1: You can check each and every […]

If you want to practice data structure and algorithm programs, you can go through data structure and algorithm interview questions. In this post, we will see how to find transpose of matrix in java. Transpose of matrix? A matrix which is created by converting all the rows of a given matrix into columns and vice-versa. Below […]

If you want to practice data structure and algorithm programs, you can go through data structure and algorithm interview questions. 1. Introduction to Problem You are given arrival and departure time of trains reaching to a particular station. You need to find minimum number of platforms required to accommodate the trains at any point of time. […]

If you want to practice data structure and algorithm programs, you can go through data structure and algorithm interview questions. In this post, we will see how to find number occurring odd number of times in the array. Problem: You are given a array of integer. All numbers occur even number of times except one. You […]

If you want to practice data structure and algorithm programs, you can go through data structure and algorithm interview questions. 1. Overview In this post, we will see how to find the second largest number in an array. This is a one of common interview questions on array data structure. 2. Introduction to Problem Statement Given […]