ExceptionHandling3, C++ (gcc)

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//g++  7.4.0

///////////////////////////////////////////////////////////////////////////////ExceptionHandling3: C++ exception handling
//this code is created by Rezaul Hoque on June 10,2022;
//contact:jewelmrh@yahoo.com;Dhaka,Bangladesh;https://rezaulhoque.wordpress.com,https://hoquestake.blogspot.com
//note: codes shared by Rezaul Hoque on rextester are not for sale; they are created and shared to facilitate the algorithm learning process; many like Hoque use this platform to practice programming ;Rezaul hopes his contribution helps others to fine tune their learning;
/////////////////////////////////////////////////////////////////////////////

#include <iostream>
#include <string>

class Name{
std::string nam;
public:
Name(std::string n){if(n==" ") 
throw " Name field can't be empty!";
else 
nam=n;
}
~Name(){}
std::string getNam(){return nam;}
void disp(){std::cout<<getNam();}
};

int main()
{
try{
    Name a(" ");
a.disp();
}
catch(const char*  text){
std::cerr<<text;
}
return 0;
}

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Compilation time: 0.62 sec, absolute running time: 0.16 sec, cpu time: 0 sec, memory peak: 5 Mb, absolute service time: 0,82 sec