Question

Write a C++ program to input 10 scores (range from 0-100), calculate the average, then display the student's name, and a letter grade such as A, B, C, D, or F. It shall have a Student class with necessary private data members and constructor and public methods, such as getName, getGrade, calcScore, convertToGrade, etc. Try to create a Student object in main(), then invoke its methods to perform the tasks.

Answer 1

#include <iostream>

using namespace std;

#define MAX 10

class student

{

private:

char name[30];

int total=0;

float avg,score[10];

char grade;

public:

void getName(void);

  

void getGrade(void);

  

void calcScore(void);

  

void convertToGrade(void);

};

//member function definition, outside of the class

void student::getName(void){

cout << "Enter name: " ;

cin >> name;}

void student::calcScore(void){

cout << "Enter total marks out of 100: ";

for(int i=0;i<10;i++)

cin >> score[i];

for(int i=0;i<10;i++)

total=total+score[i];

avg=(float)total/100*100;

}

void student::convertToGrade(void)

{

if(avg<=)

grade='F';

else if((avg>)&&(avg<=))

grade='E';

else if((avg>)&&(avg<=))

grade='D';

else if((avg>)&&(avg<=))

grade='C';

else if((avg>)&&(avg<=))

grade='B';

else if((avg>))

grade='A';

}

void student::getGrade(void){

cout << "Student details:\n";

cout << name <<" "<<grade;

}

int main()

{

student std[MAX];   

int j;

for(j=0;j< 10; j++){

std[j].getName();

std[j].calcScore();

std[j].convertToGrade();

}

cout << endl;

  

for(j=0;j< 10; j++){

cout << "Details of student " << (j+1) << ":\n";

std[j].getGrade();

}

return 0;

}

-> In the case where grade is alloted in the converttograde function

i have left the limits for you to have them as you desire . As you have not mentioned for what range what grades should be alloted. So you can have them edited as you want. Otherwise everything is as desired.

#you can ask if any doubt persists..