Type Casting in Java

Type Casting in Java

getting the value/output in the desired datatype for the value/variable which is not in the desired datatype. Such as , 3.1416 is not in int but we want the integer value of this value then

int i = (int) 3.1416

float  f = 4.894f

double k = (double) f

int  x = (double) f

Type casting could be implicit or explicit

Type casting not possible for boolean data type

implicit:

changing small datatype to larger datatype

such as long l = (int) Value  , long is 64 bit and int is 32bit

Implicit casting is done by compiler itself/automatically.

Which dataType is bigger? see below pic:

Note: Float is larger than long. It depends on the range of values of the datatypes.

Explicit :

changing larger datatype(higher range datatype) to smaller datatype(lower range datatype)

int i = (int) LongValue

There might be data loss or truncation of data in explicit casting such as

Truncation of data:

int i = (int) 3.14

OUTPUT:

i = 3

DataLoss (out of range)

long l = 123456789 l

byte b = (byte) l