Number of bytes in Java for each basic data type

Int:4 bytes
Short:2 bytes
Long:8 bytes
Byte:1 bytes
Character:2 bytes
Float:4 bytes
Double:8 bytes

Boolean: The system does not provide a size method;

public class Calcsizof {/** * @param args */private static void Calsize () {  System.out.println ("Integer:" + INTEGER.S IZE/8);           4  System.out.println ("short:" + SHORT.SIZE/8);               2      System.out.println ("Long:" + long.size/8);                 8  System.out.println ("Byte:" + byte.size/8);                 1  System.out.println ("Character:" + character.size/8);       2  System.out.println ("Float:" + float.size/8);               4  System.out.println ("Double:" + double.size/8);             8  System.out.println ("Boolean:" + boolean.tostring (false));  } public static void Main (string[] args) {//TODO auto-generated method stubcalcsizof calcsizof= new Calcsizof (); Calcsizof.calsize ();}}

Operation Result: Console output

Integer:4
Short:2
Long:8
Byte:1
Character:2
Float:4
Double:8
Boolean:false

For more information on the footprint of the encapsulated object, please refer to

http://blog.csdn.net/ithomer/article/details/7310008

Number of bytes in Java for each basic data type