Find loop in a Linked List
Que : Write a program to check whether there is a loop in linked list . For example see in the following figure we have loop : Method 1...
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Joins in Database
Explain all the Joins ? An SQL join clause combines records from two or more tables in a database. It creates a set that can be saved as ...
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Aricent Group Interview Experience Set 1
Aptitude Test The aptitude test was conducted online and consisted of 4 parts 1. English 2. Mathematical Aptitude 3. Computers( pseudo...
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MAQ Software Interview Experience Set 1.
Aptitude Test The first round was conducted on 15th November 2012,Ist round held on 14:00 and of 50 minutes.first round consists of 75 mu...
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Measure 45 minutes using two candles
Que : You are given a match-box and two candles of equal size, which can burn 1 hour each. You have to measure 45 minutes with these candl...
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SQL Complex Queries Interview Question Set 1
Que : You are given a table named Employee with columns EmployeeId, Name , ManagerId in it. Write an SQL statement to find out all the mana...
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One Rupee Mystery Puzzle
Que : Three friends rent a room for Rs.30 by paying Rs.10 each. The owner decides to give them a discount Rs.5 and gives it to the broker. ...
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Heavy or Light Weight Ball Puzzle
Que : You have eight balls: seven are the same weight, and one is heavier or lighter than the rest. Given a scale that only tells you which...
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Maximum 5 elements from 3 given Array
Write a program to find out the maximum 5 distinct elements from the 3 given array . For example if we are given three array as follows : ...
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Sapient Nitro Interview Solution Set -1
Round 1 : Written Round (Technical + Aptitude) Round 2: (Technical Interview) Que: What is the difference between C and C++? C:- ...
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3 Room Puzzle
There are three rooms, and there are Princess, Flowers and Snake in those rooms. The doors of all the rooms have incorrect nameplates. i.e....
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Power of 2
Write a program to check whether the given number is a power of 2 or not . For example if the given number is 8 then it should print true e...
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Swapping two number using third variable or without using third variable
Write a program two swap two number using third or without using third variable. For example if we have two num1=5 and num2 =6 then after ...
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Basic Linux Commands
Pwd: pwd command will print your home directory on screen, pwd means print working directory. /u0/ssb/ishant is output for the command ...
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Explain Volatile Keyword in C
Volatile keyword is intended to prevent the compiler from applying certain optimizations which it might have otherwise applied because ordi...
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Big Endian vs Little Endian
Big-endian and little-endian are terms that describe the order in which a sequence of bytes are stored in computer memory. Big-endian ...
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Move all zeroes to the end of array
Given an array , write a program to move all the zero to the end of array . For example if the given array is { 1, 0, 2, 1, 0, 3, 0, 0, 5 }...
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Count number of leaf nodes in a binary tree
Write a program to count the number of leaf nodes in a binary tree . For example if we have the following tree then it must return 3(as it ...
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String literal vs String Object in Java
How many objects will be created in the following cases : 1) String s1 = new String ("Everybrickmatters"); 2) String s2= ...
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How to write Immutable object in Java ?
The main property of immutable object is that the state of the immutable object can not be modified once created . Hence to make an object ...
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Four Tablet Puzzle
There are four tablets among which there are 2 pairs of two different type of tablet .But you can't differentiate between four tablets...
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Ebay Interview Solution Set -1
Round 1 Q1. Let us assume there are 3 baskets with different number of balls say p,q and r. Every ball has a number written on it...
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Postfix Evaluation
Write a program for Postfix Evaluation using Stack ? For example if we have an expression 432*+5- then it should return 5. Algorithm : ...
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View in database
What is View in database ? Why do we need to create View ? A view is virtual table which is created from one or many tables which depends ...
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Mutex vs Semaphore
Difference between Mutex and Semaphore Mutex: Is a key to a toilet. One person can have the key - occupy the toilet - at the time. When...
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Kernel , Monolithic Kernel and Microkernel
What is kernel ? Explain the different types of kernel ? Kernel is the main component of the operating system.It is a bridge between appl...
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Balancing of Brackets in Expression(Application of Stack)
Que : Write a program for checking balancing of brackets in expression. For example : If expression is [{()}] then it should return true. ...
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Count the number of nodes in a binary search tree
Que :-Write a program to count the number of nodes in a binary tree. For example if we have the following tree , then it must return 5. ...
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Storage Classes in C
Auto Storage Class 1. Auto variables are declared in the function in which they are to be utilized. For example : void function1 () ...
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Reverse a string using pointer in C
void reverse ( char * str) { char * begin = str; while (*str) { str++; } char ...
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Different Anamolies in Database
Without normalization, it become difficult to handle and update the database without facing data loss. Insertion , Updation and Deletion An...
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Wild Pointer , NULL Pointer , Generic Pointer and Dangling Pointer in C
Wild pointer: A pointer in c which has not been initialized is known as wild pointer. Example: # include<stdio.h> int main(){ ...
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Print "Hello World " without semicolon
How will you print “Hello World” without semicolon? There can be many ways. One of them is following. #include<stdio.h> int mai...
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Trigger and Procedure in database
What is a Trigger? A Trigger is a stored procedure that is associated with insert, update or delete operations. The code is executed autom...
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Difference between Primary key and Unique Constraints
What is the difference between primary key and unique constraints? Both primary key and unique key enforces uniqueness of the column on w...
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Given a calculator that only has the + operator. How would you implement *,-,/.
Multiplication ( * ) operation We can add the first number, second number of times. Say i=4, j=5; //Run a for loop for 5 times(j), add...
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Memory leak
What is memory leak ? In computer science, a memory leak occurs when a computer program incorrectly manages memory allocations. When Dy...
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Widening(Up Casting) and Narrow(Down Casting) Conversion in Java
Q: - What are the two type of Conversion in Java and UP Casting , Down Casting? When the automatic conversion takes place then it is know...
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Public static void main() based question in Java
Q. Why main function is defined as public and static? Ans:- Public access specifier is specified so that the program wud be visible outsid...
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Explain JVM , JRE , JIT , JDK in detail.
JDK (Java Development Kit) :- IT contains Java Compiler , Debugger , libraries , bundling and deployment tools. It contains all the tools ...
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Why is Java so Secure and Platform independent language ?
Answer is byte code . Java is first compiled into byte code which is intermediate language between machine code and source code . This by...
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Difference between Multiprogramming , Multitasking , Multiprocessing and Multithreading Operating System
Multiprogramming In multiprogramming more than one program reside in the main memory. When one job is unable to execute because of I/O o...
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Efficient Binomial Coefficient
Write a function that takes two parameters n and k and returns the value of Binomial Coefficient C(n, k). For example:- if k=8 , n= 2 resul...
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Difference between String, StringBuilder and StringBuffer in Java
String String Builder String Buffer Immutable Mutable Mutable Synchronised(thread saf...
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Indexing in database
An index in database is a data structure that improves the speed of retrieval operation at the cost of some extra memory.Indexes are used t...
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Joins in database
Explain all the Joins ? An SQL join clause combines records from two or more tables in a database. It creates a set that can be s...
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Level Order Traversal of binary search tree
Que : Write a program to print the node of tree level wise(one level at a time) . For example if we have the following tree then the output...
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Delete, Drop and Truncate Difference
Delete Delete is used to delete a particular row or all the row using the where clause or without using it . Syntax for delete command i...
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External Sorting (Handy one in the case of Memory Limit )
External sorting is a term for a class of sorting algorithms that can handle massive amounts of data. External sorting is required when the...
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Daffodil Interview Solution -Set 1
Que:Write a program to print following output from given input. Input: aaa bbb ccc ddd eee fff ggg hhh iii jjj Output: bbb aaa ddd ccc ...
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