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 Java Wrapper Classes Interview Questions


What are Wrapper Classes? Describe the wrapper classes in Java.

Wrapper classes are classes that allow primitive types to be accessed as objects. Wrapper class is wrapper around a primitive data type.

Following table lists the primitive types and the corresponding wrapper classes:

Primitive

Wrapper

Boolean java.lang.Boolean
Byte java.lang.Byte
Char java.lang.Character
double java.lang.Double
Float java.lang.Float
Int java.lang.Integer
Long java.lang.Long
Short java.lang.Short
Void java.lang.Void

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