All Expert Articles

PHP | readdir() Function

The readdir() function in PHP is an inbuilt function which is used to return the name of the next entry in a directory. The method… Read More

PHP-file-handling

PHP-function

PHP

Web Technologies

Perform n steps to convert every digit of a number in the format [count][digit]

Given a number num as a string and a number N. The task is to write a program which converts the given number num to… Read More

Algorithms-Recursion

C-String-Question

C++ Programs

DSA

Recursion

Strings

Java | CDMA (Code Division Multiple Access)

CDMA is a channelization protocol for Multiple Access, where information can be sent simultaneously through several transmitters over a single communication channel. It is achieved… Read More

Computer Networks

GATE CS

Misc

GCD of two numbers in PL/SQL

Prerequisite – PL/SQL introduction In PL/SQL code groups of commands are arranged within a block. A block group related declarations or statements. In declare part,… Read More

SQL-PL/SQL

SQL

Cisco Recruitment Process

About the Company Recruitment Process Questions asked in Cisco Interview Experiences Where To Apply About the Company: Cisco Systems, Inc. is an American multinational technology… Read More

Cisco

interview-preparation

Recruitment Process

Placements

ISRO | ISRO CS 2018 | Question 44

A language with string manipulation facilities uses the following operations. head(s)- returns the first character of the string s tail(s)- returns all but the first character of… Read More

ISRO

Hashtable keys() Method in Java

As we all know enumeration defines java class type so do enumerations can have constructors, methods, and instance variables. The java.util.Hashtable.keys() method of Hashtable class… Read More

Java - util package

Java-Collections

Java-HashTable

Java

multimap::emplace_hint() in C++ STL

The multimap::emplace_hint() is a built-in function in C++ STL which inserts the key and its element in the multimap container with a given hint. It… Read More

CPP-Functions

cpp-multimap

STL

C++

PriorityQueue offer() Method in Java

The java.util.PriorityQueue.offer() method is used to insert a particular element into the Priority Queue. It acts similar to the add() method of Priority Queue. Syntax:… Read More

Java - util package

Java-Collections

Java-Functions

java-priority-queue

Java

Print first n Fibonacci Numbers using direct formula

Given a number n, the task is to print first n Fibonacci numbers. Prerequisite: Program to print first n Fibonacci Numbers | Set 1 Examples: … Read More

Fibonacci

number-theory

series

DSA

Mathematical

8085 program to perform AND operation in nibbles of 8 bit number

Problem – Write an assembly language program in 8085 microprocessor to perform AND operation between lower and higher order nibble of 8 bit number. Example… Read More

Misc

ISRO | ISRO CS 2007 | Question 22

Phase transition for each bit are used in (A) Amplitude modulation (B) Carrier modulation (C) Manchester encoding (D) NRZ encoding Answer: (C) Explanation: Quiz of… Read More

ISRO

HashSet remove() Method in Java

HashSet remove() method is used to remove a particular element from a HashSet. Note that it is only after JDK version 1.2 and ahead, and… Read More

Java - util package

Java-Collections

Java-Functions

java-hashset

Java

ISRO | ISRO CS 2007 | Question 6

A graph with n vertices and n-1 edges that is not a tree, is (A) Connected (B) Disconnected (C) Euler (D) A circuit Answer: (B)… Read More

ISRO

LinkedList getFirst() Method in Java

Linked List is a part of the Collection framework present in java.util package. This class is an implementation of the LinkedList data structure which is… Read More

Java-Collections

java-LinkedList

Java

Challenge Handshake Authentication Protocol (CHAP)

Challenge Handshake Authentication Protocol (CHAP) is a Point-to-point protocol (PPP) authentication protocol developed by IETF (Internet Engineering Task Force). It is used at the initial… Read More

Computer Networks-Network Layer

Computer Networks

Proof that Hamiltonian Path is NP-Complete

Prerequisite : NP-Completeness The class of languages for which membership can be decided quickly fall in the class of P and The class of languages… Read More

Misc

Theory of Computation

Delhivery Interview Experience | Set 4 (Off-Campus)

There were 4 rounds in total . 3 Technical + 1 HR . Every round is elimination round Round 1: He asked my 2 algorithmic… Read More

Experiences

Interview Experiences

JRadioButton | Java Swing

We use the JRadioButton class to create a radio button. Radio button is use to select one option from multiple options. It is used in… Read More

java-swing

Java

Interface 8255 with 8085 microprocessor for addition

Problem – Interface 8255 with 8085 microprocessor and write an assembly program that determines the addition of contents of port A and port B and… Read More

microprocessor

system-programming

Computer Organization & Architecture