A class that contains the primitive data types is known as a Wrapper class. It provides a way to use primitive data types as objects. An object is required to support synchronization in multi-threading, serialization and useful in the collection framework. Following are the eight wrapper classes given below –
| Primitive data type | Wrapper class |
|---|---|
| int | Integer |
| char | Char |
| byte | Byte |
| short | Short |
| long | Long |
| float | Float |
| double | Double |
| boolean | Boolean |
In this section, the below-mentioned topics we will be covered:
- Autoboxing & Unboxing
- Typecasting