Int: 4 字节
Short: 2字节
Long: 8字节
Byte: 1字节
Character: 2字节
Float: 4字节
Double: 8字节
Boolean：系统没有提供Size方法；
public class Calcsizof {
/**
* @param args
*/
private static void calSize() {
System.out.println("Integer: " + Integer.SIZE/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 stub
Calcsizof calcsizof= new Calcsizof();
Calcsizof.calSize();
}
}
运行结果：console 输出
Integer: 4
Short: 2
Long: 8
Byte: 1
Character: 2
Float: 4
Double: 8
Boolean: false
更多地封装后的Object的占用空间的分析 请参考
http://blog.csdn.net/ithomer/article/details/7310008