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nisargancnisarganc
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concepts+code
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‎OOPS/Bank.cpp

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#include <iostream>
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using namespace std;
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class Bank
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{
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private:
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float amount;
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public:
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void openAccount()
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{
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amount = 250;
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}
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void deposit(float amt)
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{
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if( amt >= 10000)
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amt = amt - ( amt * 0.02 ) ; // 2% education tax
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amount = amount + amt;
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}
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void withdraw( float amt )
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{
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if ( amount - amt < 250 )
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cout <<"Not enough balance" << endl;
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else
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amount = amount - amt;
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}
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void getBalance()
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{
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cout << "Balance = " << amount << endl;
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}
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};
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int main()
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{
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Bank sam , alan;
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sam.openAccount();
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alan.openAccount();
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sam.deposit(50000);
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sam.getBalance();
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alan.getBalance();
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return 0;
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}
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‎OOPS/Mobile.cpp

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#include <iostream>
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using namespace std;
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class Mobile
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{
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private:
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int curr;
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public:
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void activate()
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{
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curr = 10;
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}
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void recharge( int v )
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{
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curr = curr + v;
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}
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int myBalance()
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{
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return curr;
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}
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};
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int main()
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{
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Mobile s1 , s2;
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s1.activate(); // 10 rs
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s2.activate();
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s1.recharge( 10 );
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cout << s1.myBalance( );
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return 0;
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}
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‎OOPS/Time.cpp

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#include <iostream>
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using namespace std;
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class Time
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{
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private:
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int h , m , s;
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public:
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void setTime( int hour , int min , int sec )
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{
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if( hour <=24 )
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h = hour;
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else
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h = 0;
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if( min <= 60 )
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m = min;
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else
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m = 0;
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if( sec <= 60 )
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s = sec;
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else
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s = 0;
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}
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void printMessage()
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{
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if( h < 12 )
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cout << "Good morning" << endl;
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else if( h < 16 )
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cout << "Good afternoon" << endl;
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else
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cout << "Good evening" << endl;
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}
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};
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int main()
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{
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Time t;
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t.setTime( 10 , 29 , 30 );
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t.printMessage();
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return 0;
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}
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‎classes.cpp ‎basic-programs/classes.cpp

File renamed without changes.

‎main.cpp ‎basic-programs/main.cpp

File renamed without changes.

‎stl-array.cpp ‎basic-programs/stl-array.cpp

File renamed without changes.

‎stl-vector.cpp ‎basic-programs/stl-vector.cpp

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‎classes/compare_time.cpp

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#include<iostream>
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using namespace std;
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class Time
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{
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private:
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int h , m , s;
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void Increment()
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{
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s++;
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if( s == 60 )
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{
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s = 0;
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m++;
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if( m == 60 )
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{
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m = 0;
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h++;
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if( h == 24 )
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h = 0;
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}
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}
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}
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public:
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void setTime( int hour , int min , int sec )
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{
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h = hour;
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m = min;
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s = sec;
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}
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void operator ++( ) // preincrement
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{
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Increment();
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cout << h << ":" << m << ":" << s << endl;
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}
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void operator ++(int) // post increment
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{
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cout << h << ":" << m << ":" << s << endl;
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Increment();
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}
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void display()
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{
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cout << h << ":" << m << ":" << s << endl;
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}
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int operator == ( Time arg)
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{
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return h==arg.h && m==arg.m && s==arg.s ? 1 : 0;
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}
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};
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int main()
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{
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Time alarm , systime;
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alarm.setTime( 11 , 30 , 45 );
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systime.setTime( 23 , 20 , 50);
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for( ; ; )
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{
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systime++;
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systime.display();
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if( systime == alarm)
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{
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cout << "Ding dong....." << endl;
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break;
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}
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}
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}
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‎classes/constructor.cpp

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#include<iostream>
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using namespace std;
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class Myclass
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{
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public:
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Myclass(){
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cout<<"Non parameterized constructor called.. "<<endl;
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}
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Myclass(int a){
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cout<<"Parameterized constructor called.. "<<endl;
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}
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};
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int main()
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{
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Myclass m1;
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Myclass m2(10);
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}

‎classes/op_overloading.cpp

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#include<iostream>
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using namespace std;
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class Employ
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{
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private:
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int empno , sal , exp;
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public:
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friend istream& operator >> ( istream &in , Employ &arg)
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{
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cout << "Enter employ number, experience, and salary"<< endl;
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in >> arg.empno >> arg.exp >> arg.sal;
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return in;
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}
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friend ostream& operator << ( ostream &out , Employ &arg)
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{
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out << "---------------------------" << endl;
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out << "Employ number :" << arg.empno << endl;
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out << "Experience :" << arg.exp << endl;
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out << "Salary :" << arg.sal << endl;
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out << "---------------------------" << endl;
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return out;
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}
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int operator == ( Employ arg )
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{
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return exp == arg.exp ? 1 : 0;
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}
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int operator != ( Employ arg )
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{
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return exp != arg.exp ? 1 : 0;
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}
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int operator < ( Employ arg )
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{
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return exp < arg.exp ? 1 : 0;
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}
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int operator > ( Employ arg )
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{
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return exp > arg.exp ? 1 : 0;
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}
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void operator +=( int val )
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{
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sal = sal + val;
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}
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};
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int main()
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{
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Employ e1 , e2;
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cin >> e1 >> e2;
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if( e1 != e2 )
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{
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if( e1 > e2 )
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e1+=5000;
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else
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e2+=5000;
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}
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else
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{
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e1+=5000;
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e2+=5000;
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}
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cout << e1 << e2;
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return 0;
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}
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‎classes/op_overloadingbest.cpp

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#include<iostream>
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using namespace std;
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class Employ
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{
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private:
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int empno , sal , exp;
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public:
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void read()
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{
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cout << "Enter employ number, experience and salary"<< endl;
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cin >> empno >> exp >> sal;
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}
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void write()
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{
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cout << "---------------------------" << endl;
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cout << "Employ number :" << empno << endl;
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cout << "Experience :" << exp << endl;
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cout << "Salary :" << sal << endl;
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cout << "---------------------------" << endl;
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}
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int operator == ( Employ arg )
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{
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return exp == arg.exp ? 1 : 0;
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}
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int operator != ( Employ arg )
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{
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return exp != arg.exp ? 1 : 0;
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}
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int operator < ( Employ arg )
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{
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return exp < arg.exp ? 1 : 0;
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}
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int operator > ( Employ arg )
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{
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return exp > arg.exp ? 1 : 0;
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}
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void operator +=( int val )
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{
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sal = sal + val;
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}
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Employ operator + ( int val )
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{
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sal = sal + val;
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return *this;
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}
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};
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int main()
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{
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Employ e1 , e2;
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e1.read();
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e2.read();
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if( e1 != e2 )
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{
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if( e1 < e2 )
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e2+=5000;
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else
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e1+=5000;
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}
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else
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{
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e1+=5000;
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e2 = e2 + 5000;
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}
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e1.write();
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e2.write();
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return 0;
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}
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