Is there any sizeof-like method in Java?

Question

Is there any built-in method in Java to find the size of any datatype? Is there any way to find size?

Answer 1

There is a contemporary way to do that for primitives. Use BYTES of types.

System.out.println("byte " + Byte.BYTES);
System.out.println("char " + Character.BYTES);
System.out.println("int " + Integer.BYTES);
System.out.println("long " + Long.BYTES);
System.out.println("short " + Short.BYTES);
System.out.println("double " + Double.BYTES);
System.out.println("float " + Float.BYTES);

It results in,

byte 1
char 2
int 4
long 8
short 2
double 8
float 4