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#include < iostream >
#include < string >
#include < vector >
using namespace std;
class Person{
public:
Person();
Person(string pname, string pdob);
virtual void print() const;
protected:
string name;
string dob;
};
class Employee: public Person{
public:
Employee();
Employee(string pname, string pdob, double psalary);
virtual void print() const;
protected:
double salary;
};
class Executive: public Employee{
public:
Executive();
Executive(string pname, string pdob, double psalary, string pdepartment);
virtual void print() const;
private:
string department;
};
Person::Person(): name(""), dob("") {}
Person::Person(string pname, string pdob): name(pname), dob(pdob) {}
void Person::print() const{
cout << "name : " << name << " dob : " << dob << endl;
}
Employee::Employee(): Person()
{
salary = 0;
}
Employee::Employee(string pname, string pdob, double psalary): Person(pname, pdob)
{
salary = psalary;
}
void Employee::print() const{
cout << "name : " << name << " dob : " << dob << " salary : " << salary << endl;
}
Executive::Executive(): Employee()
{
department = "";
}
Executive::Executive(string pname, string pdob, double psalary, string pdepartment): Employee(pname, pdob, psalary)
{
department = pdepartment;
}
void Executive::print() const{
cout << "name : " << name << " dob : " << dob << " salary : " << salary << " department : " << department << endl;
}
int main()
{
vector< Person* > v;
v.push_back(new Person("John", "1111"));
v.push_back(new Employee("Paul", "2222", 100));
v.push_back(new Executive("George", "3333", 200, "PIC"));
v[0]->print();
v[1]->print();
v[2]->print();
for(int i=0;i<3;++i){
delete v[i];
}
}
Enter password:
Enter password:
#include < iostream >
#include < fstream >
#include < string >
using namespace std;
int count_characters(ifstream& infile){ // include spaces
int count = 0;
char x;
while(infile.get(x)){
count++;
}
infile.clear();
infile.seekg(0, ios::beg);
return count;
}
int count_words(ifstream& infile){
int count = 0;
string s;
while(infile >> s){
count ++;
}
infile.clear();
infile.seekg(0, ios::beg);
return count;
}
int count_lines(ifstream& infile){
int count = 0;
string s;
while(getline(infile,s)){
count++;
}
infile.clear();
infile.seekg(0, ios::beg);
return count;
}
int main()
{
ifstream infile; // ifstream if you are reading the file
while(true)
{
string filename;
cout << "File name (Q to quit) : ";
getline(cin, filename);
if(cin.fail()){
cout << "Wrong file name" << endl;
return 0;
}
if(filename == "Q"){
return 0;
}
infile.open(filename.c_str());
if(infile.fail()){
cout << "Wrong file" << endl;
return 0;
}
infile.clear();
int num_lines = count_lines(infile);
int num_characters = count_characters(infile);
int num_words = count_words(infile);
ofstream outfile;
outfile.open("output.txt");
outfile << "HEFLELFLLA LHAHAHHAHHA" << endl;
outfile << "num of char : " << num_characters << endl;
outfile << "num of words : " << num_words << endl;
outfile << "num of lines : " << num_lines << endl;
outfile.close();
}
infile.close();
}
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