Question

Write a program that prompts the user to enter two characters and displays the major and status represented in the characters. The first character indicates the major and the second is number character 1, 2, 3, 4, which indicates whether a student is a freshman, sophomore, junior, or senior. Suppose the following characters are used to denote the majors: 

M: Mathematics

C: Computer Science 

T: Testing and Certification

Answer 1

Program Plan:

• Declare char, string and bool type variables

• Read 2 character from user.

• Use else if statement to concatenate string in result string variable accordingly. Also reset value of b1 and b2 variable.

• Use another if else if statements to display major and status according to value of bool variable.

Program:

/**********************************************************

* Program to display student major and status *

**********************************************************/

//Header file

#include

#include

using namespace std;

int main()

{

//declare char, string and bool type variables

char first,second;

string result;

bool b1=true,b2=true;

cout<<"Enter two characters: ";

//read two character from user

cin>>first;

cin>>second;

Use else if statement to concatenate string in result string variable accordingly.

//check value of first variable

if(first=='M')

//concatenate value in string variable

result="Mathematics";

else if(first=='C')

result="Computer Science";

else if(first=='I')

result="Information Technology";

else

//reset value of b1 variable

b1=false;

//check value of second variable

if(second=='1')

//concatenate value in string variable

result=result+" Freshman";

else if(second=='2')

result=result+" Sophomore";

else if(second=='3')

result=result+" Junior";

else if(second=='4')

result=result+" Senior";

else

//reset value of b1 variable

b2=false;

Use if else if statement to display major and status according to value of bool variable.

if(b1==false&&b2==false)

cout<<"Invalid major and status code"<<endl;

else if(b1==true&&b2==false)

cout<<"Invalid status code"<<endl;

else if(b1==false&&b2==true)

cout<<"Invalid major code"<<endl;

else

//display major and status code

cout<<result<<endl;

system("pause");

return 0;

}

Sample Output:

Enter a year: 2001

Enter two characters: M9

Invalid status code

Press any key to continue . . .