Conditional and Decision making in C++

If Condition:

#include<iostream.h>

#include<conio.h>

void main()

{

int i,j;

clrscr();

cout<<”Input first value:”;

cin>>i;

cout<<”Input second value:”;

cin>>j;

if(i>j)

cout<<”First value is greater”;

if(j>i)

cout<<”Second value is greater”;

getch();

}

Else if:

#include<iostream.h>

#include<conio.h>

void main()

{

int i,j;

clrscr();

cout<<”Input first value:”;

cin>>i;

cout<<”Input second value:”;

cin>>j;

if(i>j)

cout<<”First value is greater”;

else

cout<<”Second value is greater”;

getch();

}

Switch case statements:

#include<iostream.h>

#include<conio.h>

void main()

{

char ecode;

clrscr();

cout<<”Enter the ecode[a/m/p]:”;

cin>>ecode;

switch(ecode)

{

case ‘a’:

cout<<”Apprentice staff”;

break;

case ‘m’:

cout<<”Management staff”;

break;

case ‘p’:

cout<<”Permanent staff”:

break;

default:

cout<<”Invalid employee code”;

break;

}

getch();

}

For Loop:

#include<iostream.h>

#include<conio.h>

void main()

{

int i;

clrscr();

cout<<”Number Square”<<endl;

for(i=1;i<=5;i++)

{

cout<<i<<”\t”<<i*i<<endl;

}

getch();

}

While loop:

#include<iostream.h>

#include<conio.h>

void main()

{

int radius;

float area;

char wish=’y’;

while(wish= =’y’)

{

cout<<”Enter the radius of the circle:”;

cin>>radius;

area=3.14*radius*radius;

cout<<”Area is:”<<area<<endl;

cout<<”Wish to calculate area of another circle[y/n]:”;

cin>>wish;

}

getch();

}

Continue:

#include<iostream.h>

#include<conio.h>

void main()

{

int i;

clrscr();

cout<<”The following number are divisible by 5:”;

for(i=1;i<=25;i++)

{

if(i%5!=0)

continue;

cout<<i<<”\t”;

}

getch();

}