C++ Program to create a Calculator for Rectangle Operations | C++ Program | Class XI | CBSE

create a calculator through c++ coding to calculate rectangle operations easily and great results in no time. no errors. easy to understand. less coding more fun. according to cbse syllabus.

Write a C++ Program to calculate the rectangle operations

Rectangle Operations Calculator in C++ Programming Language

(Area, Perimeter, Length of Diagonals)

Code Sample 1 (for Dev C++ & CodeBlocks)

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#include<iostream> #include<math.h> #include<process.h> using namespace std; int main() { char response, choice; int l,b,a,p,d; Again: //go to statement cout<<"Enterr the rectangle function you want to work with:-"<<endl; cout<<"1. Area (Input 1)"<<endl; cout<<"2. Perimeter (Input 2)"<<endl; cout<<"3. Diagonals (Input 3)"<<endl; cout<<"4. Exit (Input 4)"<<endl; cin>>choice; if (choice=='1'||choice=='2'||choice=='3') { cout<<"Enter the length and the breadth respectively:-"<<endl; cout<<"(Put an enter between them)"<<endl; cin>>l>>b; } switch(choice) { case'1': a=l*b; cout<<"The area of the rectangle is:-"<<a<<"."; break; case'2': p=2*(l+b); cout<<"The perimeter of the rectangle is:-"<<p<<"."; break; case'3': d=sqrt(pow(l,2)+pow(b,2)); cout<<"The length of the diagonals is:-"<<d<<"."; break; case'4': cout<<"Exiting on your request..."; exit(0); default: cout<<"Wrong or Invalid choice."; cout<<"Try Again..."; cout<<"Exiting..."; exit(0); } cout<<endl<<"Want some more functions to work with."; cout<<endl<<"Enter your choice(Y/N):-\t"; cin>>response; if(response=='Y'||response=='y') goto Again; else { cout<<endl<<"Thank You"; exit(0); } return(0); }

Code Sample 2 (for Turbo C++)

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#include<iostream> #include<math.h> #include<process.h> void main() { char response, choice; int l,b,a,p,d; Again: //go to statement cout<<"Enterr the rectangle function you want to work with:-"<<endl; cout<<"1. Area (Input 1)"<<endl; cout<<"2. Perimeter (Input 2)"<<endl; cout<<"3. Diagonals (Input 3)"<<endl; cout<<"4. Exit (Input 4)"<<endl; cin>>choice; if (choice=='1'||choice=='2'||choice=='3') { cout<<"Enter the length and the breadth respectively:-"<<endl; cout<<"(Put an enter between them)"<<endl; cin>>l>>b; } switch(choice) { case'1': a=l*b; cout<<"The area of the rectangle is:-"<<a<<"."; break; case'2': p=2*(l+b); cout<<"The perimeter of the rectangle is:-"<<p<<"."; break; case'3': d=sqrt(pow(l,2)+pow(b,2)); cout<<"The length of the diagonals is:-"<<d<<"."; break; case'4': cout<<"Exiting on your request..."; exit(0); default: cout<<"Wrong or Invalid choice."; cout<<"Try Again..."; cout<<"Exiting..."; exit(0); } cout<<endl<<"Want some more functions to work with."; cout<<endl<<"Enter your choice(Y/N):-\t"; cin>>response; if(response=='Y'||response=='y') goto Again; else { cout<<endl<<"Thank You"; exit(0); } getch(); }

Sample Output:

Programs on conditional statements, loops, control structures and string manipulations under C++ Programming language are covered here.

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Know more about stuff related to this practical experiment (Important for Boards):-

• Difference between Dev C++ and Turbo C++.
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Reference:-

• Arora, Sumita. Computer Science with C++ for Class - 12
• Arora, Sumita. Computer Science with C++ for Class - 11
• C programming Interview questions and answers [http://www.cquestions.com/]
• The Crazy Programmer [https://www.thecrazyprogrammer.com/]

Comment down about what you think went wrong with your code, is this correctly working for you? What else do you need for your coding lust?

For latest syllabus, both theory and practical papers for class XII, check out the CBSE’s official site http://cbseacademic.in/ for more info.

For more awesome coding and programs related to this language log onto http://www.thecrazyprogrammer.com or https://www.w3schools.in/.

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