Question

Write a complete C++ program named “CheckAmount" that accepts command line arguments. It checks whether there is a command line argument of"-amount" followed by an amount number. It will print out that number amount. For all other cases, it will print out -1. For example, if you run this program with correct arguments as follows, it will print out 1.99, 0.75 and 1.1 respectively CheckAmount -amount 1.99 CheckAmount -help -amount 0.75 CheckAmount -help -check -amount 1.1 -verbose And if you run the program with invalid arguments, it will print -1 in all cases CheckAmount amount -verbose CheckAmount -help -amount CheckAmount -amount CheckAmount amount 1.0 CheckAmount

Make sure it is able to print everything and uses the command line

Answer 1

ANSWER;

Source Code:

#include<iostream>
using namespace std;
int main(int argc, char** argv)
{
if(argc==4)
{
cout<<"CheckAmount -amount="<<argv[1]<<endl;
cout<<"CheckAmount -help -amount="<<argv[2]<<endl;
cout<<"CheckAmount -help -check- amount="<<argv[3]<<endl;
}
else
{
cout<<"CheckAmount -amount="<<"-1 "<<endl;
cout<<"CheckAmount -help -amount="<<"1"<<endl;
cout<<"CheckAmount -help -check- amount="<<"1"<<endl;
}
return 0;
}

OUTPUT

= - O G a sirilsiju98@sirilsiju98-Aspire-A515-52:- sirilsiju98@sirilsiju98- Aspire-A515-52:-$ 9++ amt.cpp, sirilsiju98@sirilsiju98-Aspire-A515-52: $ ./a.out CheckAmount -amount=-1 CheckAmount -help -amount=1 CheckAmount -help -check- amount=1 sirilsiju98@sirilsiju98 -Aspire-A515-52: $ ./a.out 1.95 0.75 1.1 CheckAmount -amount=1.95 CheckAmount -help - amount=0.75 CheckAmount -help -check- amount=1.1 sirilsiju98@sirilsiju98-Aspire-A515-52: $1