IFTM University fresher Interview Questions and Answers

Write a program of sorting string

Q1. What is time complexity?
Ans. 
Time complexity refers to the amount of time taken by an algorithm to run as the input size increases.
• It is a measure of how efficient an algorithm is.

• It is usually expressed in Big O notation.

• The lower the time complexity, the better the algorithm.

• For example, an algorithm with O(n) time complexity will take longer as the input size increases compared to an algorithm with O(1) time complexity.
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Q2. What's static keyword?
Ans. 
Static keyword is used to declare a variable or method that belongs to the class and not to the instance of the class.
• Static variables are shared by all instances of a class

• Static methods can be called without creating an instance of the class

• Static blocks are used to initialize static variables

• Static keyword can also be used to create nested classes

• Example: public static int count;
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