Define a MathOp interface that has four methods for add, subtract, multiply, and divide. These methods only work with integers.
Implementation
You will write a class that implements MathOp to support arithmetic operations. Each method should have two parameters. The divide method will throw an exception if the divisor is 0.
Write a program that uses the interface and implementation to allow the users to perform some arithmetic.
Sample run (text marked as bold are user inputs):

run:
1)add, 2)sub, 3)multiply, 4) divide, 5) exit:1
Enter operands:2 4
6
1)add, 2)sub, 3)multiply, 4) divide, 5) exit:2
Enter operands:4 2
2
1)add, 2)sub, 3)multiply, 4) divide, 5) exit:3
Enter operands:2 3
6
1)add, 2)sub, 3)multiply, 4) divide, 5) exit:4
Enter operands:3 2
1
1)add, 2)sub, 3)multiply, 4) divide, 5) exit:4
Enter operands:2 1
2
1)add, 2)sub, 3)multiply, 4) divide, 5) exit:4
Enter operands:3 0
Division by zero error!
1)add, 2)sub, 3)multiply, 4) divide, 5) exit:5
Bye!

answer:

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answer:

// here is code in C++.

#include <bits/stdc++.h>

using namespace std;

//main function

int main()

{

  // variable

 int n;

 cout<<"enter a number:";

 // read the input

 cin>>n;

 // find the square root of the absolute value

 float square_root=sqrt(abs(n));

 // print the square_root

 cout<<"square root of "<<n<<" is: "<<square_root<<endl;

  return 0;

}

Explanation:

Read a number from user and assign it to "n".Then find its absolute value with abs() function.Then calculate the square root of the absolute value with sqrt() function.Print the square root of the number.

Output:

enter a number:-17

square root of -17 is: 4.12311

                                                         This is easy

                                                     sinserly Natalie 7 grader (this is not that hard)

0.76kg

Explanation:

0.76kg

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