答案:

public class Main
{
    public static void main(String[] args)
    {
        System.out.println("The size of short is " + Short.SIZE/8 + " bytes.");
        System.out.println("The size of int is " + Integer.SIZE/8 + " bytes.");
        System.out.println("The size of long is " + Long.SIZE/8 + " bytes.");
        System.out.println("The size of long long is " + Long.SIZE/8 + " bytes.");
    }
}