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SEE THE Q3 for actual question, The first Two are Q1 and Q2 answers . Q1...

SEE THE Q3 for actual question, The first Two are Q1 and Q2 answers .

Q1

#include<iostream>
using namespace std;
// add function that add two numbers
void add(){
   int num1,num2;
   cout << "Enter two numbers "<< endl;
   cout << "First :";
   cin >> num1;
   cout << "Second :";
   cin >>num2;
   int result=num1+num2;
   cout << "The sum of " << num1 << " and "<< num2 <<" is = "<< result;
   return;
}
// subtract function that subtract two numbers
void subtract(){
   int num1,num2;
   cout << "Enter two numbers "<< endl;
   cout << "First :";
   cin >> num1;
   cout << "Second :";
   cin >>num2;
   int result=num1-num2;
   cout << "The subtract of " << num1 << " and "<< num2 <<" is = "<< result;
   return;
}
// multiply function that multiply two numbers
void multiply(){
   int num1,num2;
   cout << "Enter two numbers "<< endl;
   cout << "First :";
   cin >> num1;
   cout << "Second :";
   cin >>num2;
   int result=num1*num2;
   cout << "The multipication of " << num1 << " and "<< num2 <<" is = "<< result;
   return;
}

// divide function that divide two numbers
void divide(){
   int num1,num2;
   cout << "Enter two numbers "<< endl;
   cout << "First :";
   cin >> num1;
   cout << "Second :";
   cin >>num2;
   if(num2 ==0){// check denominator is zero or not
       cout << "Denominator can not be zero. Please enter the valid denominator "<< endl;
       cin >> num2;// if zero then ask valid denominator from user
   }
   float result=num1/num2;
   cout << "The division of " << num1 << " and "<< num2 << " is = "<< result;
   return;
}
//main function
int main(){
   cout << "Hello" << endl;//hello message
   cout << "======================================================================="<<endl;
   cout << "Menu "<< endl;//menu
   cout << "======================================================================="<<endl;
   cout << "a/A To add two numbers "<< endl;
   cout << "b/B To subtract two numbers "<< endl;
   cout << "c/C To multiply two numbers "<< endl;
   cout << "d/D To divide two numbers "<< endl;
   cout << "x/X Exit "<< endl;
   cout << "======================================================================="<<endl;
   char ch;
   cin >> ch;// taking options from user
   switch(ch){
       case 'a' : add();
                   break;
        case 'A' : add();
                   break;
       case 'b' : subtract();
                   break;
        case 'B' : subtract();
                   break;
       case 'c' : multiply();
                   break;
        case 'C' : multiply();
                   break;              
       case 'd' : divide();
                   break;
        case 'D' : divide();
                   break;
       case 'x' : cout << "Good Bye " << endl;
                          return 0;
        case 'X' : cout << "Good Bye " << endl;
                          return 0;
       default: cout << "Error: Invalid option "<< endl;// if invalid options
   }
return 0;                          
}

///////////////////////////////////////////////////////////////////////////////////////////////////////////////

Q 2

#include<iostream>
using namespace std;
// add function that add two numbers
void add(){
   int num1,num2;
   cout << "Enter two numbers "<< endl;
   cout << "First :";
   cin >> num1;
   cout << "Second :";
   cin >>num2;
   int result=num1+num2;
   cout << "The sum of " << num1 << " and "<< num2 <<" is = "<< result<< endl;
   cout << "======================================================================="<<endl;
   return;
}
// subtract function that subtract two numbers
void subtract(){
   int num1,num2;
   cout << "Enter two numbers "<< endl;
   cout << "First :";
   cin >> num1;
   cout << "Second :";
   cin >>num2;
   int result=num1-num2;
   cout << "The subtract of " << num1 << " and "<< num2 <<" is = "<< result<< endl;
   cout << "======================================================================="<<endl;
   return;
}
// multiply function that multiply two numbers
void multiply(){
   int num1,num2;
   cout << "Enter two numbers "<< endl;
   cout << "First :";
   cin >> num1;
   cout << "Second :";
   cin >>num2;
   int result=num1*num2;
   cout << "The multipication of " << num1 << " and "<< num2 <<" is = "<< result<<endl;
   cout << "======================================================================="<<endl;
   return;
}

// divide function that divide two numbers
void divide(){
   int num1,num2;
   cout << "Enter two numbers "<< endl;
   cout << "First :";
   cin >> num1;
   cout << "Second :";
   cin >>num2;
   if(num2 ==0){// check denominator is zero or not
       cout << "Denominator can not be zero. Please enter the valid denominator "<< endl;
       cin >> num2;// if zero then ask valid denominator from user
   }
   float result=num1/num2;
   cout << "The division of " << num1 << " and "<< num2 << " is = "<< result<< endl;
   cout << "======================================================================="<<endl;
  
   return;
}
//main function
int main(){
   cout << "Hello" << endl;//hello message
   cout << "======================================================================="<<endl;
   cout << "Menu "<< endl;//menu
   cout << "======================================================================="<<endl;
   cout << "a/A To add two numbers "<< endl;
   cout << "b/B To subtract two numbers "<< endl;
   cout << "c/C To multiply two numbers "<< endl;
   cout << "d/D To divide two numbers "<< endl;
   cout << "x/X Exit "<< endl;
   cout << "======================================================================="<<endl;
  
   char ch;
   cin >> ch;// taking options from user
   while(ch!='x'||ch!='X'){
      
       switch(ch){
           case 'a' : add();
                       break;
            case 'A' : add();
                       break;
           case 'b' : subtract();
                       break;
            case 'B' : subtract();
                       break;
           case 'c' : multiply();
                       break;
            case 'C' : multiply();
                       break;              
           case 'd' : divide();
                       break;
            case 'D' : divide();
                       break;
           case 'x' : cout << "Good Bye " << endl;
                              return 0;
            case 'X' : cout << "Good Bye " << endl;
                              return 0;
           default: cout << "Error: Invalid option "<< endl;// if invalid options
       }
   cout << endl;
    cin >> ch;
}
return 0;                          
}

//////////////////////////////////////////////////////////////////////////////////////////////////////////////////

Question 3

Create a new file (in Dev C++) and save it

Modify the program written for Q2 to use functions. All other criteria from Q1 and Q2 must still be met in Q34. Also, add a new menu option for modulus (%).

SUGGESTED FUNCTIONS (some or all of these functions may be used; additional ones may be used if desired):

  • getMenuChoice() - presents menu and prompts for choice; returns valid menu choice
  • getNumber() - prompts user for numeric input
  • displayMessage() - displays hello/goodbye/error message
  • add() - adds two numbers and displays result
  • subtract() - subtracts two numbers and displays result
  • multiply() - multiplies two numbers and displays result
  • divide() - divides two numbers and displays result
  • modulus() - divides two integers and displays remainder as result
  • displayResult() - displays result of an operation
engineering   Computer-Science   
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Homework Answers

Answer #1

/***********************Q3.cpp*******************************/

#include<iostream>
using namespace std;
void getMenuChoice(){
  
cout << "Hello" << endl;//hello message
cout << "======================================================================="<<endl;
cout << "Menu "<< endl;//menu
cout << "======================================================================="<<endl;
cout << "a/A To add two numbers "<< endl;
cout << "b/B To subtract two numbers "<< endl;
cout << "c/C To multiply two numbers "<< endl;
cout << "d/D To divide two numbers "<< endl;
cout << "m/M To modulus two numbers "<<endl;
cout << "x/X Exit "<< endl;
cout << "======================================================================="<<endl;
  
}
// add function that add two numbers
void add(){
int num1,num2;
cout << "Enter two numbers "<< endl;
cout << "First :";
cin >> num1;
cout << "Second :";
cin >>num2;
int result=num1+num2;
cout << "The sum of " << num1 << " and "<< num2 <<" is = "<< result<< endl;
cout << "======================================================================="<<endl;
getMenuChoice();
return;
}
// subtract function that subtract two numbers
void subtract(){
int num1,num2;
cout << "Enter two numbers "<< endl;
cout << "First :";
cin >> num1;
cout << "Second :";
cin >>num2;
int result=num1-num2;
cout << "The subtract of " << num1 << " and "<< num2 <<" is = "<< result<< endl;
cout << "======================================================================="<<endl;
getMenuChoice();
return;
}
// multiply function that multiply two numbers
void multiply(){
int num1,num2;
cout << "Enter two numbers "<< endl;
cout << "First :";
cin >> num1;
cout << "Second :";
cin >>num2;
int result=num1*num2;
cout << "The multipication of " << num1 << " and "<< num2 <<" is = "<< result<<endl;
cout << "======================================================================="<<endl;
getMenuChoice();
return;
}

// divide function that divide two numbers
void divide(){
int num1,num2;
cout << "Enter two numbers "<< endl;
cout << "First :";
cin >> num1;
cout << "Second :";
cin >>num2;
if(num2 ==0){// check denominator is zero or not
cout << "Denominator can not be zero. Please enter the valid denominator "<< endl;
cin >> num2;// if zero then ask valid denominator from user
}
float result=num1/num2;
cout << "The division of " << num1 << " and "<< num2 << " is = "<< result<< endl;
cout << "======================================================================="<<endl;
getMenuChoice();
  
return;
}
void calModulus(){
int num1,num2;
cout << "Enter two numbers "<< endl;
cout << "First :";
cin >> num1;
cout << "Second :";
cin >>num2;
int result=num1%num2;
cout << "The modulus of " << num1 << " and "<< num2 <<" is = "<< result<<endl;
cout << "======================================================================="<<endl;
getMenuChoice();
return;
}

//main function
int main(){

getMenuChoice();
char ch;
cin >> ch;// taking options from user
while(ch!='x'||ch!='X'){
  
switch(ch){
case 'a' : add();
break;
   case 'A' : add();
break;
case 'b' : subtract();
break;
case 'B' : subtract();
break;
case 'c' : multiply();
break;
case 'C' : multiply();
break;
case 'd' : divide();
break;
case 'D' : divide();
break;
case 'm' : calModulus();
           break;
case 'M' : calModulus();
           break;
case 'x' : cout << "Good Bye " << endl;
return 0;
case 'X' : cout << "Good Bye " << endl;
return 0;
default: cout << "Error: Invalid option "<< endl;// if invalid options
}
cout << endl;
cin >> ch;
}
return 0;
}

/**************************output****************************/

Hello
=======================================================================
Menu
=======================================================================
a/A To add two numbers
b/B To subtract two numbers
c/C To multiply two numbers
d/D To divide two numbers
m/M To modulus two numbers
x/X Exit
=======================================================================
m
Enter two numbers
First :12
Second :4
The modulus of 12 and 4 is = 0
=======================================================================
Hello
=======================================================================
Menu
=======================================================================
a/A To add two numbers
b/B To subtract two numbers
c/C To multiply two numbers
d/D To divide two numbers
m/M To modulus two numbers
x/X Exit
=======================================================================

m
Enter two numbers
First :13
Second :2
The modulus of 13 and 2 is = 1
=======================================================================
Hello
=======================================================================
Menu
=======================================================================
a/A To add two numbers
b/B To subtract two numbers
c/C To multiply two numbers
d/D To divide two numbers
m/M To modulus two numbers
x/X Exit
=======================================================================

x
Good Bye
D:Filelcal.exe Hello enu a/A To add two numbers b/B To subtract two numbers c/C To multiply two numbers d/D To divide two num

Select DAFilelcal.exe Enter two numbers First :13 Second:2 The modulus of 13 and 2 is = 1 Hello enu a/A To add two numbers b/

Thanks a lot, Please let me know if you have any problem....................

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