Answer to Question #188106 in C++ for MULE CHINTU

Question

Write a program which has a class called String containing a character array as a data member. The class should contain constructor for input and an appropriate member function for throwing an exception in case the ASCII value of a character is prime. You may use any other data members or member functions you deem necessary for computing the answer

Answer 1

#include <iostream>
#include <string>




using namespace std;


class String{


private:
	//a character array as a data member.
	char character[1000];
	//This function checks if the number is prime
	bool isPrime(int number){
		if (number == 0 || number == 1) {
			return false;
		}else {
			for (int i = 2; i <= number / 2; ++i) {
				if (number % i == 0) {
					return false;
				}
			}
		}
		return true;
	}
public:
	//The class should contain constructor for input 
	String(char character[]){
		strcpy(this->character,character);
	}
	//throwing an exception in case the ASCII value of a character is prime. 
	void checkString(){
		for (int i = 0; i <strlen(this->character); ++i) {
			if(isPrime(int(this->character[i]))){
				cout<<"Value is: "<<this->character[i]<<", ASCII value is: "<<int(this->character[i])<<"\n";
				throw invalid_argument("The ASCII value of a character is prime");
			}
		}
	}
	
};


int main(){
	//test String class
	char inputString[1000];
	//get string from the user
	cout<<"Enter a string: ";
	cin.get(inputString, 1000);
	try {
		String _string(inputString);
		_string.checkString();
	}
	catch(exception& e ) {
		cout<<e.what()<<"\n\n";	
	}


	//delay
	system("pause");
	return 0;
}