Add Practise Programs

Added Practise Programs

Introduction to C++/Practise Programs/employ.cpp

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+#include <iostream>
+using namespace std;
+class Employee
+{
+    private:
+    char name[20];
+    int id, salary;
+    public:
+    int read()
+    {
+        cout<<"Enter Employee id, salary, name: ";
+        cin>>id>>salary>>name;
+        return 0;
+    }
+    int display()
+    {
+        cout<<"Employee ID: \n"<<id<<"\nSalary: \n"<<salary<<"\nName: \n"<<name;
+    }
+};
+
+int main()
+{
+    Employee e1;
+    e1.read();
+    e1.display();
+}

Introduction to C++/Practise Programs/employee2.cpp

@@ -0,0 +1,42 @@
+#include <iostream>
+using namespace std;
+class Employee
+{
+    private:
+    int id;
+    char name[20];
+    int salary;
+    public:
+    int read()
+    {
+        cout<<"Enter Employee id, salary, name: ";
+        cin>>id>>salary>>name;
+        return (0);
+    }
+    int display()
+    {
+        cout<<"Employee ID: \n"<<id<<"\nSalary: \n"<<salary<<"\nName: \n"<<name;
+        return (0);
+    }
+    int getSalary()//Need to access private data member-public member function
+    { 
+        return salary;
+    }
+};
+
+int main()
+{
+    Employee e1, e2;
+    e1.read();
+    e2.read();
+
+    if(e1.getSalary()>e2.getSalary())
+    {
+        e1.display();
+    }
+    else
+    {
+            e2.display();
+    }
+    return (0);
+}

Introduction to C++/Practise Programs/frndFn.cpp

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+#include <iostream>
+using namespace std;
+/*forword declaration--Let the compiler know of an other class coming later*/
+class test2;
+class test1{
+     int sub1;
+     int sub2;
+    public:
+    void read(int m1,int m2){
+        sub1=m1;
+        sub2=m2;
+    }
+    void display(){
+        cout<<sub1<<"\t"<<sub2;
+    }
+    friend void avgMarks(test1 t1, test2 t2);
+    //Use this frnd function as a common function between two classes test1 and test2
+};
+class test2{
+    private:
+    int sub1, sub2;
+    public:
+    void read(int n1, int n2)
+    {
+        sub1=n1;
+        sub2=n2;
+    }
+    void display()
+    {
+        cout<<sub1<<"\t"<<sub2;
+    }
+    friend void avgMarks(test1 t1, test2 t2);
+};
+//frnd fn definition--normal fn definition. Used to declare a function which will be shared between two or multiple classes, for example in our case, avgMarks will access the pvt. data between two classes
+void avgMarks(test1 t1, test2 t2)
+{
+    float avg = (t1.sub1+t1.sub2+t2.sub1+t2.sub2)/4.0;
+    cout<<"\nAverage of two tests:"<<avg<<"\n";
+}
+int main(){
+    test1 T1;
+    test2 T2;
+    cout<<"Read data for Test1\n";
+    T1.read(45,34);
+    cout<<"Read data for Test2\n";
+    T2.read(45,43);
+    cout<<"Test Marks\n Sub1\tSub2\n";
+    T1.display();
+    cout<<"\n";
+    T2.display();
+    avgMarks(T1,T2); //Frnd function
+    return 0;
+}

Introduction to C++/Practise Programs/odd.cpp

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+#include <iostream>
+using namespace std;
+int main()
+    {
+        int i;
+        int sum=0;
+        for(i=1;i<=100;i=i+2)
+        {
+        sum=sum+i;
+        }
+        cout<<"Sum of First 100 odd numbers:    "<<sum;
+        return 0;
+    }

Introduction to C++/Practise Programs/prime.cpp

@@ -0,0 +1,23 @@
+#include<iostream>
+using namespace std;
+int main(){
+    double a,c=0;   
+    int i;
+    cout<<"Enter a no: ";
+    cin>>a;
+    for(i=0;i<=a;i++)
+    {
+        if(a%i==0)
+        {
+            c++;
+        }
+    }
+    if(c==2)
+    {
+        cout<<"Prime Number:    "<<a;
+    }
+    else{
+        cout<<"Not a prime";
+    }
+    return 0;
+}

Introduction to C++/Practise Programs/runtimeIni.cpp

@@ -0,0 +1,37 @@
+#include<iostream>
+using namespace std;
+class ArrOfObjEmp{
+    private:
+    char name[20];
+    int id, salary;
+    public:
+    int read()
+    {
+        cin>>id>>salary>>name;
+        return 0;
+    }
+    int display()
+    {
+        cout<<id<<"\t"<<salary<<"\t"<<name<<endl;
+        return 0;
+    }
+}; //End
+int main(){
+    //array of objects
+    //Declaration
+    ArrOfObjEmp A[5];
+    //Initialize--Read Fn--For Loop
+    for(int i=0;i<5;i++)
+    {
+        cout<<"Enter Employee id: "<<i+1<<"\tName, "<<"Salary";
+        A[i].read();
+    }
+     //Display
+    cout<<"Employee Details\n";
+    cout<<"Emp IDs\tEmpName\tEmpSal\n";
+    for(int i=0;i<5;i++)
+    {
+        A[i].display();
+    }
+
+}

Introduction to C++/Practise Programs/runtimeType2.cpp

@@ -0,0 +1,38 @@
+#include<iostream>
+using namespace std;
+class ArrOfObjEmp{
+    private:
+    char name[20];
+    int id, salary;
+    public:
+    int read()
+    {
+        cin>>id>>salary>>name;
+        return 0;
+    }
+    int display()
+    {
+        if(salary>10000)
+        cout<<id<<"\t"<<salary<<"\t"<<name<<endl;
+        return 0;
+    }
+}; //End
+int main(){
+    //array of objects
+    //Declaration
+    ArrOfObjEmp A[5];
+    //Initialize--Read Fn--For Loop
+    for(int i=0;i<5;i++)
+    {
+        cout<<"ID:"<<i+1<<" Name, "<<"Salary";
+        cout<<"\n";
+        A[i].read();
+    }
+     //Display
+    cout<<"Employee Details\n";
+    cout<<"Emp IDs\tEmpName\tEmpSal\n";
+    for(int i=0;i<5;i++)
+    {
+        A[i].display();
+    }
+}

Introduction to C++/Practise Programs/simpleInterest.cpp

@@ -0,0 +1,27 @@
+#include<iostream>
+using namespace std;
+class simp{
+    double pamt;
+    int noyears;
+    double rateofinterest;
+    double si;
+    public:
+        void read(){
+            cout<<"Enter P.Amount, No. of years, Rate of Interest \n";
+            cin>>pamt>>noyears>>rateofinterest;
+        }
+        void display(){
+            cout<<"P. amount:   Rs"<<pamt<<"\t No.years:"<<noyears<<"\t Rate of Interest:"<<rateofinterest<<"%"<<endl;
+        }
+        void getamount(){
+            si=(pamt*noyears*rateofinterest)/100;
+            cout<<"Interest in Amt. is: "<<si;
+        }
+};
+int main(){
+    simp s;
+    s.read();
+    s.display();
+    s.getamount();
+    return 0;
+}

Introduction to C++/Practise Programs/sumOfDigits.cpp

@@ -0,0 +1,16 @@
+#include<iostream>
+using namespace std;  
+ int main()    
+{    
+    int n,sum=0,m;    
+    cout<<"Enter a number:  ";    
+    cin>>n;    
+    while(n>0)    
+    {    
+        m=n%10;    
+        sum=sum+m;    
+        n=n/10;    
+     }    
+    cout<<"Sum is: "<<sum;    
+    return 0;  
+}   

Introduction to C++/Practise Programs/time.cpp

@@ -0,0 +1,43 @@
+#include <iostream>
+using namespace std;
+class Time{
+     int hrs, min;
+     public:
+        void read(int h, int m)
+        {
+            hrs=h;
+            min=m;
+        }
+        void display()
+        {
+            cout<<hrs<<":"<<min;
+        }
+        void add(Time t1, Time t2)
+        {
+            min = t1.min+t2.min;
+            hrs =t1.hrs+t2.hrs+ (min/60);
+            min = min%60;
+
+        }
+};
+
+int main()
+{
+
+    Time T1,T2,T3;
+    cout<<"Read data for Time T1\n";
+    T1.read(4,34);
+    cout<<"Read data for Time T2\n";
+    T2.read(4,43);
+    cout<<"\nTime T1\n";
+    T1.display();
+    cout<<"\nTime T2\n";
+    T2.display();
+    cout<<"\n";
+
+    T3. add (T1,T2);
+    cout<<"\nTime T3\n";
+    T3.display();
+    return 0;
+
+}

Introduction to C++/Practise Programs/type3c.cpp

@@ -0,0 +1,59 @@
+#include <iostream>
+using namespace std;
+class Employee
+{
+    private:
+    int id;
+    char name[20];
+    int salary;
+    public:
+    int read()
+    {
+        //cout<<"Enter Employee id, salary, name: ";
+        cin>>id>>salary>>name;
+        return (0);
+    }
+    int display()
+    {
+        cout<<"Employee ID: \n"<<id<<"\nSalary: \n"<<salary<<"\nName: \n"<<name;
+        return (0);
+    }
+    int getSalary()//Need to access private data member-public member function
+    { 
+        return salary;
+    }
+};
+
+int main()
+{
+   int i;
+   //array of objects
+    //Declaration
+    Employee A[5];
+    //Initialize--Read Fn--For Loop
+    for(i=0;i<5;i++)
+    {
+        cout<<"Enter Employee"<<i+1<<"Id, Name and Salary\n";
+        A[i].read();
+    }
+
+   int max = A[0].getSalary(); //assumption
+    for(i=1;i<5;i++)
+    {
+        if(A[i].getSalary()>max)
+        {
+            max=A[i].getSalary();
+        }
+    }
+
+     //Display
+    cout<<"Employee Details\n";
+
+    for(int i=0;i<5;i++)
+    {
+        if(A[i].getSalary()==max)
+        A[i].display();
+    }
+
+return 0;
+}