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137. Using indexOf( ) method







indexOf( ) searches Index value for the first occurrence of a character.

Example- "This is a test statement".indexOf('a')   // 'a' is the character to be searched for in the provided text

indexOf( ) searches Index value for the first occurrence of a substring.

Example - "This is a test statement". indexOf("test")   // "test" is the substring to be searched for in the provided text

Lets implement this on Eclipse IDE:

1. Create 'indexOfDemo' class under any project as shown below:



2. Save and Run the 'indexOfDemo' class
3. Observe that the output is displayed in the console as shown below:



Download this project:

Click here to download the project containing the class file used in this post (You can download this project and import into Eclipse IDE on your machine)



Please comment below to feedback or ask questions.

Using lastIndexOf( ) method will be explained in the next post



2 comments:

Vijaykumar Mohith said...
This comment has been removed by the author.
Vijaykumar Mohith said...

Going through these different types of String Handling methods and one question is rotating in my mind.
In real time, when do we need these ?
Understanding the purpose of the methods through this blog but having real time scenarios will help beginners like me, so we can relate.

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