IF ELSE IF in C++

 IF ELSE IF

If there are more than three alternatives & indentation is not consistent ,it may be difficult to determine the logical structure of the if statement. in such situations, if statement with multiples alternatives (if-else if)

can be a good option.

The general format of if else if is:

if(condition)

    statement;

else if(condition)

    statement;

else if(condition)

    statement;

else    

    statement;

Program:

#include <iostream>

using namespace std;

void main()

{

float pf,iict,cs,ds,percent,ob_marks=0.0; //variable initializaton & declaration...

cout<<"Enter Obtained Marks of 'PF':"; //show msgs & take input...

cin>>pf;

cout<<"Enter Obtained Marks of 'IICT':";

cin>>iict;

cout<<"Enter Obtained Marks of 'DS':";

cin>>ds;

cout<<"Enter Obtained marks of 'Communication Skills':";

cin>>cs;

ob_marks=pf+iict+cs+ds;

percent=(ob_marks/400)*100;

cout<<"Percentage:"<<percent<<endl;

if(percent>=90 && percent<=100)

cout<<"Grade:A+"<<endl;

else if(percent>=80 && percent<=89)

cout<<"Grade:A"<<endl;

else if(percent>=70 && percent<=79)

cout<<"Grade:B"<<endl;

else if(percent>=60 && percent<=69)

cout<<"Grade:C"<<endl;

else if(percent>=50 && percent<=59)

cout<<"Grade:D"<<endl;

else if(percent>=0 && percent<=40)

cout<<"Grade:F"<<endl;

else

cout<<"Invalid Input";

system("pause");

}