TYPE CASTING

Its the process of allocating the data value from one type to another. while assigning the value there may

be a chance that two data type is not compatible.

Type casting is classified into two types:

(1) Implicit type casting (widening or automatic type casting).

(2) Explicit type casting (narrowing or manually type casting)

Implicit type casting :-

-> when two types are compatible then this type casting is take place.

-> this type casting is done automatically (done by compiler).

-> This type casting is done from smaller type two larger type.

byte -> short -> char -> int -> long -> float -> double

eg:-

int i = 100;

long l = i;

float f = l;

System.out.println("int value :"+i);

System.out.println("long value :"+l);

System.out.println("float value :"+f);

output:-

int value :100

long value :100

float value :100.0

Explicit type casting :-

-> when two types are not compatible then explicit type casting take place.

-> This type casting is done manually (done by programmer).

-> This type casting is done from larger type to smaller type.

double -> float -> long -> int -> char -> short -> byte

eg:-

double d = 100.04;

long l = (long)d;

int i = (int)l;

System.out.println("double value :"+d);

System.out.println("long value :"+l);

System.out.println("int value :"+i);

output:-

double value :100.04

long value :100

int value :100