Conditional statements in C Programming with Example

Conditional statements in C Programming with Example

Conditional statements

     1. if     2. if else     3. if else if     4. switch statement     5. conditional operator or ternary operator     6. while     7. do while     8. for     9. go to    10. type conversion

If Program :

#include 

int main()
{
int a;
printf("Enter the value of a is:");
scanf("%d",&a);
if(a>=18)
{
printf("I am elgible for vote");
}
return 0;
}

Output :

Enter the value of a is:22                                                                                         
I am elgible for vote

If else Program :

else
printf("I am not eligible for vote");
}

Vowels Condition :

if((a=='a')||(a=='e')||(a=='i')||(a=='o')||(a=='u'))

If else if Program :

#include 

int main()
{
int a,b,c;
printf("Enter the value of a and b and c is:");
scanf("%d%d%d",&a,&b,&c);
if((a>b)&&(a>c))
printf("a is greater");
else if((b>a)&&(b>c))
printf("b is greater");
else
printf("c is greater");
return 0;
}

Output:

Enter the value of a and b and c is:4                                                                              
4                                                                                                                  
6                                                                                                                  
c is greater  

Switch Statement Program :

#include 

int main()
{
int a;
printf("Enter the value of  a is:");
scanf("%d",&a);
switch(a)
{
case 1:
{
int a,b,c,d;
printf("Enter the value of b and c is:");
scanf("%d%d",&b,&c);
d=b+c;
printf("The value of c is %d",d);
break;
}
case 2:
{
int b,c,d;
printf("Enter the value of b and c is:");
scanf("%d%d",&b,&c);
d=b-c;
printf("The value of d is %d",d);
break;
}
case 3:
{
int b,c,d;
printf("Enter the value of b and c is:");
scanf("%d%d",&b,&c);
d=b*c;
printf("The value of d is: %d",d);
break;
}
case 4:
{
int b,c,d;
printf("Enter the value of b and c is:");
scanf("%d%d",&b,&c);
d=b/c;
printf("The value of d is %d",d);
break;
}
default:
{
printf("You are enter the wrong number");
break;
}
return 0;
}
}

Output :

Enter the value of  a is:2                                                                                         
Enter the value of b and c is:23                                                                                   
2                                                                                                                  
The value of d is 21 

Conditional Operator :
Symbol - ?, :

Program :

#include 

int main()
{
int a,b,c;
printf("Enter the value of a and b is:");
scanf("%d%d",&a,&b);
c=a>b?a:b;
printf("The value of c is %d",c);
return 0;
}

Output :

Enter the value of a and b is:3                                                                                    
6                                                                                                                  
The value of c is 6 

While Program :

#include 

int main()
{
    int a;
printf("Enter the a is:");
scanf("%d",&a);
while(a<=10)
{
printf("\n arun");
a++;
}

    return 0;
}

Output :

Enter the a is:4                                                                                                     
                                                                                                                     
 arun                                                                                                                
 arun                                                                                                                
 arun                                                                                                                
 arun                                                                                                                
 arun                                                                                                                
 arun                                                                                                                
 arun

Do while Program :

#include 

int main()
{
    int a;
printf("Enter the value of a is:");
scanf("%d",&a);
do
{
printf("\narun");
a++;
}
while(a<=10);
    return 0;
}

Output :

Enter the value of a is:3                                                                                            
                                                                                                                     
arun                                                                                                                 
arun                                                                                                                 
arun                                                                                                                 
arun                                                                                                                 
arun                                                                                                                 
arun                                                                                                                 
arun                                                                                                                 
arun   

For
1. intialization
2. conditional
3. increment(or)decrement

Program :

#include 

int main()
{
    int i,n;
printf("Enter the value of n is:");
scanf("%d",&n);
for(i=1;i<=n;i++)
{
printf("\n%d",i);
}
    return 0;
}

Output :

Enter the value of n is:2                                                                                            
                                                                                                                     
1                                                                                                                    
2  

Type conversion : 
1. float-int
2. int-float

Program :

#include 

int main()
{
    float a,b;
int c;
printf("Enter the value of a and b is:");
scanf("%f%f",&a,&b);
c=(int)a*(int)b;
printf("The value of c is%d",c);
    return 0;
}

Output :

Enter the value of a and b is:3                                                                                      
5                                                                                                                    
The value of c is15  

Go to
Program :

#include
#include
void main()
{
int a,b,c;
clrscr();
go to arun;
selva:
printf("The value of c is %d",c);
go to end;
kumar;
c=a+b;
go to selva;
arun;
printf("Enter the value of a and b is :");
scanf("%d%d",&a,&b);
go to kumar;
end:
getch();
}

Output :

Enter the value of a and b is : 2
2
The value of c is 4

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