Casting for Primitives

Casting	int
float	float f = 6.1; int i = (int)f;
double	double d = 25.0; int i = (int)d;
long	long l = 25.0; int i = (int)l;
String	String str = "25"; int i = Integer.valueOf(str).intValue(); or int i = Integer.parseInt(str);

Casting	float
int	int i = 6; float f= (float)i;
double	double d = 25.0; float f = (float)d;
long	long l = 25.0; float f = (float)l;
String	float f = Float.valueOf(str).floatValue();

Casting	double
int	int i = 6; double d =(double)i;
float	float f = 6.1; double d =(double)f;
long	long l = 25.0; double d = (double)l;
String	double d = Double.valueOf(str).doubleValue();

Casting	long
int	int i = 6; long l = (long)i;
float	float f = 6.1; long l = (long)f;
double	double d =25.0; long l= (long)d;
String	long l = Long.valueOf(str).longValue(); or Long l = Long.parseLong(str);

Casting	String
int	int i = 42; String str = Integer.toString(i); or String str = "" + i;
float	String str = Float.toString(f);
double	String str = Double.toString(i);
long	String str = Long.toString(l);