by Hey guys, what is up. In this particular post, we will be talking about questions on a conditional statement.
Updated on (27/9/2021)
KEY POINTS
#include<iostream.h>
#include<conio.h>
void main()
{
clrscr();
int n;
float a,b,c;
cout<<“CALCULATOR \n 1.) ADDITION \n 2.) SUBTRACTION \n 3.) MULTIPLICATION \n 4.) DIVISION”;
cout<<“\nENTER A = “;
cin>>a;
cout<<“ENTER B = “;
cin>>b;
cout<<“\nENTER YOUR CHOICE BETWEEN 1-4 = “;
cin>>n;
if(n<1 && n>4)
{
cout<<“INVALID CHOICE”;
}
else if(n==1)
{
c=a+b;
cout<<“ADDITION = “<<c;
}
else if(n==2)
{
c=a-b;
cout<<“SUBTRACTION = “<<c;
}
else if(n==3)
{
c=a*b;
cout<<“MULTIPLICATION = “<<c;
}
else
{
c=a/b;
cout<<“DIVISION = “<<c;
}
getch();
}
OUTPUT:
Ques2: To print the grade of a student taking all the values from the user using a conditional statement.
#include<iostream.h>
#include<conio.h>
void main()
{
clrscr();
float english, maths, science, social, hindi, total, percentage;
cout<<“ENTER VALUES OF ALL THE SUBJECTS: “;
cout<<“\nENGLISH= “;
cin>>english;
cout<<“MATHS= “;
cin>>maths;
cout<<“SCIENCE= “;
cin>>science;
cout<<“SOCIAL= “;
cin>>social;
cout<<“HINDI= “;
cin>>hindi;
total=english + hindi + maths + social + science;
percentage= (total/500) * 100;
if (percentage>90 && percentage<=100)
{
cout<<“\nGRADE A”;
}
else if (percentage>80 && percentage<=90)
{
cout<<“\nGRADE B”;
}
else if (percentage>70 && percentage<=80)
{
cout<<“\nGRADE C”;
}
else if (percentage>60 && percentage<=70)
{
cout<<“\nGRADE D”;
}
else if (percentage>50 && percentage<=60)
{
cout<<“\nGRADE E”;
}
else
{
cout<<“\nFAIL”;
}
getch();
}
Ques3: To calculate the area and perimeter of circle, square, and rectangle using conditional statement.
#include<iostream.h>
#include<conio.h>
void main()
{
clrscr();
int option, side, length, breadth, radius;
float area,perimeter;
cout<<” AREA \n 1.) SQUARE \n 2.) RECTANGLE \n 3.) CIRCLE \n PERIMETER \n 4.) SQUARE \n 5.) RECTANGLE \n 6.) CIRCLE “;
cout<<“\nENTER OPTION FROM 1 TO 6 WHICH YOU WANT TO PERFORM: “;
cin>>option;
if(option<1 && option>6)
{
cout<<“\n INVALID OPTION”;
}
else if(option==1)
{
cout<<“\n ENTER SIDE OF SQUARE= “;
cin>>side;
area= side*side;
cout<<“\n AREA OF SQUARE= “<<area;
}
else if(option==2)
{
cout<<“\n ENTER LENGTH AND BREADTH OF RECTANGLE= “;
cout<<“\n LENGTH= “;
cin>>length;
cout<<“\n BREADTH= “;
cin>>breadth;
area= length*breadth;
cout<<“\n AREA OF RECTANGLE= “<<area;
}
else if(option==3)
{
cout<<“\n ENTER RADIUS OF CIRCLE= “;
cin>>radius;
area= 3.14*radius *radius;
cout<<“\n AREA OF CIRCLE= “<<area;
}
else if(option==4)
{
cout<<“\n ENTER SIDE OF SQUARE= “;
cin>>side;
perimeter= 4*side;
cout<<“\n PERIMETER OF SQUARE= “<<perimeter;
}
else if(option==5)
{
cout<<“\n ENTER LENGTH AND BREADTH OF RECTANGLE= “;
cout<<“\n LENGTH= “;
cin>>length;
cout<<“\n BREADTH= “;
cin>>breadth;
perimeter= 2*(length+breadth);
cout<<“\n PERIMETER OF RECTANGLE= “<<perimeter;
}
else if(option==6)
{
cout<<“\n ENTER RADIUS OF CIRCLE= “;
cin>>radius;
perimeter= 2*3.14*radius;
cout<<“\n PERIMETER OF CIRCLE= “<<perimeter;
}
getch();
}
QUES4: To calculate the tax a person has to pay based on his salary.
#include<iostream.h>
#include<conio.h>
void main()
{
clrscr();
float sal, tax;
cout<<“ENTER SALARY = “;
cin>>sal;
if(sal<=10000)
{
cout<<“NO TAX”;
}
else if(sal>10000 && sal<=20000)
{
tax = (0.10*sal);
cout<<“TAX = “<<tax;
}
else if(sal>20000 && sal<= 30000)
{
tax = (0.20*sal);
cout<<“TAX = “<<tax;
}
else
{
tax = (0.25*sal);
cout<<“TAX = “<<tax;
}
getch();
}
In the upcoming post, you will be getting information related to technology and switch statement in C++. If you haven’t read about what is if else in c++ then go and read this. Also, stay tuned for the upcoming post
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