Loop Programs
Programs using for, while, do-while loops and array methods
6 program solutions
Program Solutions
Multiplication Table
Program to print multiplication table
Sum of n Natural Numbers
Program to calculate sum of first n natural numbers
Factorial of a Number
Program to calculate factorial of a number
Reverse a Number
Program to reverse digits of a number
Palindrome Check
Program to check if a number or string is palindrome
Prime Number Check
Program to check if a number is prime
Topic Strategy: Loop Programs
This topic is best practiced through repetition with variation. Solve each program, then modify constraints and test alternate approaches so you understand why one solution performs better than another.
During interviews, explain the approach before coding: input assumptions, core logic, complexity, and edge cases. Clear reasoning often matters as much as final code correctness.
Once comfortable, time-box each question and target clean, readable code with meaningful variable names and a quick dry run explanation.