java与c++数据类型占用内存对比

java

public class Main
{
    public static void main(String[] args)
    {
        System.out.println("byte类型大小:"+Byte.BYTES+"字节");
        System.out.println("short类型大小:"+ Short.BYTES+"字节");
        System.out.println("int类型大小:"+Integer.BYTES+"字节");
        System.out.println("long类型大小:"+ Long.BYTES+"字节");
        System.out.println("float类型大小:"+ Float.BYTES+"字节");
        System.out.println("double类型大小:"+ Double.BYTES+"字节");
        System.out.println("char类型大小:"+ Character.BYTES+"字节");
        System.out.println("boolean类型大小:"+1+"字节");
    }
}

c++

#include<iostream>
using namespace std;
int main()
{
    cout<<"short类型大小:"<<sizeof(short)<<endl;
    cout<<"int类型大小:"<<sizeof(int)<<endl;
    cout<<"long类型大小:"<<sizeof(long)<<endl;
    cout<<"long long类型大小:"<<sizeof(long long)<<endl;
    cout<<"float类型大小:"<<sizeof(float)<<endl;
    cout<<"double类型大小:"<<sizeof(double)<<endl;
    cout<<"long double类型大小:"<<sizeof(long double)<<endl;
    cout<<"char类型大小:"<<sizeof(char)<<endl;
    cout<<"bool类型大小:"<<sizeof(bool)<<endl;
    cout<<"string类型大小:"<<sizeof(string)<<endl;
    return 0;
}