Selenium Interview Question 53 – What is the purpose of using Wrapper classes in Java?

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What is the purpose of using Wrapper classes in Java?

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Notes used for explanation in this Youtube video are provided after the video:

Notes used in the above Youtube Video:

All the things in Java are object-oriented in nature except the following primitive data types:

1. byte
2. short
3. int
4. long
5. float
6. double
7. char
8. boolean

Java has been using these non-object oriented primitive data types with an intention of overcoming the performance issues which may occur by using objects for simple operations.

But there are some situations where we have to use these primitive data types as Objects in Java.

For using the primitive data types as Objects in Java, Java is providing the following Wrapper classes which can cover the primitive data types to the corresponding objects.

1. Byte
2. Short
3. Integer
4. Long
5. Float
6. Double
7. Character
8. Boolean

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