Byte class « Byte « Numbers « Development

Byte class provides several methods for converting a byte to a String and a String to a byte.


public final class Byte
extends Number
implements Comparable<Byte>

Byte's constant values

Type	Field	Summary
static byte	MAX_VALUE	A constant holding the maximum value a byte can have, 2⁷-1.
static byte	MIN_VALUE	A constant holding the minimum value a byte can have, -2⁷.
static int	SIZE	The number of bits used to represent a byte value.
static Class<Byte>	TYPE	The Class instance representing the primitive type byte.

Byte's constructors

Constructor	Summary
Byte(byte value)	Creates a Byte object for byte value.
Byte(String s)	Creates a Byte object for the byte value indicated by the String parameter.

The following table shows the methods we can use to convert a Byte object to primitive byte value, double value, float value, int value, long value and short value.

Return	Method	Summary
byte	byteValue()	Returns the value of this Byte as a byte.
double	doubleValue()	Returns the value of this Byte as a double.
float	floatValue()	Returns the value of this Byte as a float.
int	intValue()	Returns the value of this Byte as an int.
long	longValue()	Returns the value of this Byte as a long.
short	shortValue()	Returns the value of this Byte as a short.

The table below lists the methods which convert string or byte value to byte value or Byte object.

Return	Method	Summary
static Byte	decode(String nm)	Decodes a String into a Byte.
static byte	parseByte(String s)	Parses string argument to byte.
static byte	parseByte(String s, int radix)	Parses string argument to byte in the radix.
static Byte	valueOf(byte b)	Converts byte value to Byte.
static Byte	valueOf(String s)	Converts string to byte.
static Byte	valueOf(String s, int radix)	Converts string to byte in radix.

Return	Method	Summary
static String	toString(byte b)	Returns a new String object representing the specified byte.
String	toString()	Returns a String object representing this Byte's value.

To compare two byte values from two different Byte objects we use compareTo method:

Return	Method	Summary
int	compareTo(Byte anotherByte)	Compares two Byte objects numerically.
boolean	equals(Object obj)	Compares this object to the specified object.

Return	Method	Summary
int	hashCode()	Returns a hash code for this Byte.