Bar Chart — Create a bar chart showing quantities or percentages by labeling columns and clicking on values. Base Blocks — Illustrate addition and subtraction in a variety of bases.
Programming questions like reversing String using recursion or How to find if Array contains duplicates are some popular examples of programming question in Java. These programming interview questions are from my personal collections and I have only chosen those which are not very difficult, can be solved easily but at the same time can become too complex or confusing, present lots of follow-up questions and test fundamentals of programming, OOPS and design.
I have not given answers to these programming questions but those can be found by Google and I will try to post links of answers here sometime later but at the same time, I will try to provide quick tips or hints on some questions. Anyone who is following programming questions must be familiar with these questions and also knows the answer for most of these but for new guys and even for intermediate it's worth refreshing it before going to any programming job interview e.
String Programming Interview Questions The string is a primary and probably most common thing you come across on any programming language and so is with any programming interview. There is almost always a question on String whether its related to length or replace but I have always found one or two String programming questions on interviews.
This can be done by using either StringBuffer reverse method or by technique demonstrated in the solution here. Also, StringBuilder is not synchronized like StringBuffer and that's why faster and should be used for temporary String manipulation.
Couple of reasons which I think make sense is an implementation of String pool, Security, and Performance. Java designers know that String will be used heavily in every single Java program, so they optimized it from the start. You can even use a regular expression to split a big string into several smaller strings.
If you can solve all these String questions without any help then you are in good shape. If you need more practice, here is another list of 20 string coding questions. Programming questions on Array An array is one of the topics where most of the programming questions are asked.
There are many and many programming questions on Array and here I have included only some of them which are not very difficult to solve but some of array programming question can be extremely challenging, so well prepare this topic.
Here is a quick tip to solve this programming question: If you need more advanced questions based upon array then you can see also see The Coding Interview Bootcamp: And, if you feel 10 is not enough questions and you need more practice, then you can also check out this list of 30 array questions.
It actually compliments array and whatever you cannot do with an array, you can do with a linked list. For example, the array needs contiguous memory to store objects but the linked list doesn't need that. It's difficult to add and remove elements in an array because you need to shift existing elements but that is very easy with a linked list, as you just need to change the pointer to accommodate them.
But, nothing is free in this world.
While linked list provides all these functionalities but the cost of that you lose the ability to search elements in constant time with index. Searching and element require traversing linked list, which means examining all nodes, thus cost around O n time.
To answer this programming question I would say you start with a simple solution on which you traverse the LinkedList until you find the tail of linked list where it points to null to find the length of the linked list and then reiterating till middle.
How do you find the start of the loop? Deep Dive Using Java course.
Binary Tree Programming Interview Questions Binary tree or simply tree is one of favorite topic for most of the interviewer and pose a real challenge if you struggle with recursion.
Programming questions on the tree can become increasingly difficult when you think iterative but sometimes can be very easy if you come with a recursive solution. It's written by an ex-Googler and it is one of the most comprehensive course to revise all important data structures like an array, linked list, binary tree etc.
Programming Questions on Searching and Sorting I have only included two programming questions related to searching and sorting but there are more can be found on Google. Purpose of these programming questions is to see whether a programmer is familiar with the essential search and sort mechanism or not.
Programming Questions on Numbers Most of the programming questions are based on numbers and these are the ones which most of us did on college level and mind you they still has value I have seen programmers with experience of 3 years struggle with these programming questions and doesn't solve it some time and take a lot of time which simply shows that they are not in programming in there day to day work.
Both iterative and recursive? A good book to prepare for programming job interviews in a short time. General Programming Interview Questions In this category of programming questions, I have put questions which are not fit into any data structure but presents a real-life problem and you need to provide a solution.In this article, we will show you, how to write a C Program to Find sum of digits of a number using For Loop, While Loop, Functions and Recursion This C program allows the user to enter any positive integer and then it will divide the given number into individual digits and adding those individual.
popular java interview programming test 1 2 3 years experience Java Programs asked in Interviews Frequently common most asked java programming java interview programs.
Write a java program to find Sum of Squares of Even Digits. By codebun Problem Solving 0 Comments Write a program to read a number, calculate the sum of squares of even digits (values) present in the given number.
There’s a popular story that Gauss, mathematician extraordinaire, had a lazy vetconnexx.com so-called educator wanted to keep the kids busy so he could take a nap; he . In this article we will show you, how to Write a Program to Find Sum of Digits in Java using For Loop, While Loop, Functions and Recursion This Java program allows the user to enter any positive integer and then it will divide the given number into individual digits and adding those individual (Sum.
Java program to find sum of digits of number. In this post we will write Java program to find sum of digits of number. This is one of the frequently asked Java coding interview questions for experience of years..
Sum of Digits of a number without recursion.