[Solved] What does the Contains method do when used on a string in C#? - Ans: Checks if a substring exists within the string | C Sharp (C#)

C Sharp (C#) - Strings and StringBuilder

What does the Contains method do when used on a string in C#?

AReplaces a substring with another string

BReturns the position of a substring

CExtracts a substring from the string

DChecks if a substring exists within the string

Step-by-Step Solution

Solution:

Step 1: Understand the purpose of Contains method
The Contains method checks if a specified substring is present anywhere inside the string and returns a boolean value.
Step 2: Compare with other string methods
Unlike IndexOf which returns position, Contains only returns true or false if substring exists.
Final Answer:
Checks if a substring exists within the string -> Option D
Quick Check:
Contains method = boolean check [OK]

Quick Trick: Contains returns true/false if substring is found [OK]

Common Mistakes:

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What does the Contains method do when used on a string in C#?