This program shows how you can print the size of any data type available in Java language. Unlike C and C++ here we don’t have any built-in operator like sizeof to calculate the size of the data type. But we can use static variable BYTES of Non-primitive data type to find the size for almost every data type.

Program

SizeOfDataTypes.javaCopy
public class SizeOfDataTypes {

    public static void main(String[] args) {

        System.out.println("Type          Size (bytes)");
        System.out.println("Character       " + Character.BYTES);
        System.out.println("Byte            " + Byte.BYTES);
        System.out.println("Integer         " + 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);
    }
}
Try It

Output

Type          Size (bytes)
Character       2
Byte            1
Integer         4
Long            8
Short           2
Double          8
Float           4