The explanation of different types of wrapper classes in Java
Primitive | Wrapper Class |
---|---|
boolean | Boolean |
int | Integer |
float | Float |
char | Character |
byte | Byte |
long | Long |
short | Short |
Wrapper classes in Java are used to encapsulate primitive data types and convert them into objects. They provide a way to treat primitive types as objects, enabling them to be used in scenarios that require objects, such as collections, generics, and methods that expect objects as arguments.
Boolean
: This wrapper class is used to encapsulate the boolean
primitive type. It provides methods for working with boolean values, such as converting strings to booleans and performing logical operations.
Integer
: The Integer
class wraps the int
primitive type. It provides various methods for converting strings to integers, performing arithmetic operations, and working with integer values.
Float
: The Float
class wraps the float
primitive type. It offers methods for converting strings to floating-point numbers and performing arithmetic operations.
Character
: This wrapper class is used for encapsulating the char
primitive type. It provides methods for working with individual characters, converting characters to strings, and performing character-related operations.
Byte
: The Byte
class wraps the byte
primitive type. It is useful for converting strings to bytes and performing byte-related operations.
Long
: The Long
class wraps the long
primitive type. It offers methods for converting strings to long integers and performing arithmetic operations with long values.
Short
: This wrapper class is used for encapsulating the short
primitive type. It provides methods for converting strings to short integers and performing short-related operations.
By using wrapper classes, we can use primitives wherever objects are required and take advantage of the additional functionality provided by the wrapper classes.