磕代码：输出不同整型数据类型在内存中占多大（字节）

c:

#include<stdio.h>
int main()
{
printf("The size of short is %d bytes.\n",sizeof(short));
printf("The size of int is %d bytes.\n",sizeof(int));
printf("The size of long is %d bytes.\n",sizeof(long));
printf("The size of long long is %d bytes.",sizeof(long long));
return 0;
}

注：字符串用双引号，字符用单引号。
C语言pirntf里用单引号会报错：数组越界。
sizeof的使用。
c++:

#include <bits/stdc++.h>
using namespace std;

int main() {
//使用sizeof运算符输出各种类型的大小
printf("The size of short is %d bytes.\n", sizeof(short));
printf("The size of int is %d bytes.\n", sizeof(int));
printf("The size of long is %d bytes.\n", sizeof(long));
printf("The size of long long is %d bytes.\n", sizeof(long long));
}

注：也可以用printf。
Java：

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.");
}
}

注：SIZE大写；
求的是位数，算字节数要再除以8；
println自带换行；
long和longlong是一样的？；