Astack is a type of data collection on which things can be "pushed" and "popped". for example, a stack of plates can have a plate added (or "pushed") onto the stack, and a plate removed (or "popped") from the stack. plates are pushed onto or popped off of the stack one at a time. the last plate pushed onto the stack is the first plate popped off of the stack. this type of structure is known as "lifo" – last in, first out.

in this project, you will create a stack that will hold objects of type person. the stack itself will be in a class named personstack.

when manipulating the stack, three types (or classes) of exceptions can be thrown. each exception class will contain two constructors, one which provides a default message for the exception, and one which takes a string as an argument and sets the exception message to that string.

the three exception classes in this project are:

answer: i have no clue tbh

explanation:

it happens to me to tho

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)

the blue one

Explanation:

get aids and die