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 theboolean
primitive type. It provides methods for working with boolean values, such as converting strings to booleans and performing logical operations.Integer
: TheInteger
class wraps theint
primitive type. It provides various methods for converting strings to integers, performing arithmetic operations, and working with integer values.Float
: TheFloat
class wraps thefloat
primitive type. It offers methods for converting strings to floating-point numbers and performing arithmetic operations.Character
: This wrapper class is used for encapsulating thechar
primitive type. It provides methods for working with individual characters, converting characters to strings, and performing character-related operations.Byte
: TheByte
class wraps thebyte
primitive type. It is useful for converting strings to bytes and performing byte-related operations.Long
: TheLong
class wraps thelong
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 theshort
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.
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