Write function to calculate sum of first N powers of 2 starting from 1. You shouldn't use any built-in function for calculating power. Implement the most efficient solution.
Programmer Intern Interview Questions
716,774 programmer intern interview questions shared by candidates
String,String buffer,String builder difference. Can u write your own immutable class n how? hashmap implementation and hashcode(),equals() method he asked me to write 2 logical testing programs with reduced complexity( 0,1,1,2,4,5,3,3,1,0,1 traverse once only n get the duplicate number's along with the count). printing pascal triangle duplicate letter from a string with less complexity reversing words of string individually(this is a tree---o/p: siht si a eert)
Varied behavioral questions. Technical focused on oops concepts(explain 4 pillars of OOP with examples). Was asked to write code to print the largest number in an unsorted integer array of infinite size. Although the position was for C#, they were cool about me coding in java.
if p1 and p2 are two consecutive prime number, in which cases (p1 + p2) / 2 is a prime number.
Define Yourself
What is a class?
Probability of a knight making a valid move on NxN matrix in m steps.
Find count of unique characters in a given string
Given a triangle, determine if its a scalene, equilateral, isosceles or neither... required knowledge of triangle properties, I learnt these properties about two decades ago so ofcourse I was fuzzy on the details, completely unexpected
Given a string of format '2+3*2-1', calculate and return the result. No parenthesis in the input, just integers and + - * / operators. Operator precedence has to be considered. Linear time complexity and minimal data structure use is preferred.
Viewing 1601 - 1610 interview questions