Wrapper Class In Java

In Java language, it has two types of variables, primitive variable, and reference variable. In some cases, we want to use the primitive variable as an object to get the benefits of an object like allowing null or encapsulation. For those cases, we can use wrapper classes to do that thing. There are eight classes to wrap the primitive value in an object in Java language:

• java.lang.Byte wraps byte value
• java.lang.Short wraps short value
• java.lang.Integer wraps int value
• java.lang.Long wraps long value