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Hi this is my question , and I have some error in my code ,and I cant correct them ,and I am asking if you could help me ? this is the question : Create a class called BloodDonor that maintains information about blood donors in a blood bank having …

Hi, could you explain how can I do the next ? A Member function named isVolumeBigger that takes as parameter a Box(Box class) object named another and returns bool value. The function compares the volume of the object with the volume of another and returns true if its volume is …

how can I check the donor if valid by using switch function Is_BloodBroup_Valid // takes a string as parameter and return true if it is a valid group and false if not. The only possible blood groups are A+, A-, B+, B-, 0+, 0-, AB+, AB-. also if I have …

hi , my program calculate the area of rectangle , and I have some errors , and dont know how to correct them . this is the program , [CODE] #include<iostream> using namespace std; class Rectangle { private: double length ,width ; public: double getW(); double getL(); void setW(); void …

[CODE]#include <iostream> using namespace std; void intialize(char array[][6]){ for(int i=0;i<13;i++) for(int j=0;j<6;j++) array[i][j]='*'; } void menu (char array [][6]){ cout <<endl; cout<<"\tA\tB\tC\tD\tE\tF"<<endl; for (int i =0; i<13 ;i++){ cout<<"Row "<<i+1<<'\t'; for(int j=0;j<6;j++){ cout<<array[i][j]<<"\t"; } cout<<endl; } cout<<endl; } void main(){ char array[13][6]; intialize(array); char smoking,type,exit,column; int row,col; do{ smoking = …

I want to know what is the differnt between continue and the break ?

I have these question and I need some help from you : Assume that the maximum number of students in a class is 50. Write a program that reads students' names followed by their test score from a file and outputs the following: a. class average b. Names of all …

hello , I want to know what is the difference between passing by value and reference , and if you can put an example with simple out put .

hello , I want any thing about enumration and string .

hello ,Im a new member and Im not very good in english , so please excuse me , I have question : write a C++ program that declares an array alpha of 50 component of type double . Initialize the array so that the first 25 components are equal to …