TYPE CASTING

The process of converting one data type to another is called type casting

Examples:

int m=50;

byte n=(byte)m;

long count=(long) m;

class Typecasting

{

public static void main(String args[])

{

System.out.println("variales created");

char c='x';

byte b=50;

short s=1996;

int i=123456789;

long l=1234567654321L;

float f1=3.142F;

float f2=1.2e-5F;

double d2=0.000000987;

System.out.println(" c="+c);

System.out.println(" b ="+b);

System.out.println(" s= "+s);

System.out.println(" i="+i);

System.out.println(" l="+l);

System.out.println(" f1= "+f1);

System.out.println(" f2="+f2);

System.out.println("d2 ="+d2);

System.out.println(" ");

System.out.println(" Types converted");

short s1=(short)b;

short s2=(short)i;

float n1=(float)l;

int m1=(int)f1;

System.out.println(" (short)b ="+s1);

System.out.println(" (short)i ="+s2);

System.out.println(" (float)l= "+n1);

System.out.println(" (int)f1= - "+m1);

}

}

Note : floating point constants have a default type of double

For example when we want to declare a float variable and initializing it to constant

float x=7.56;

This will give “incompatible type for declaration. Explicit cast needed to convert double to

float.”

This should be written as

float x=7.56F