if else statement in c

if else Statement in C Program

Definition Of if Statement : C Uses the keywords if  to implement the decision control instruction. The if statement like to be syntax .

if ( this condition true )

     execute statement here;

The Key of if tells the compiler time, when condition is true execute the given statement. Otherwise, Don't Perform The Operation Bellow Statement.If statement conditions like to be bellow.

• x==y      x is equal to y
• x!=y       x is not equal to y
• x<y        x is less than to y 
• x>y        x is greater than to y
• x<=y      x is less than or equal to y
• x>=y      x is greater than or equal to y

Example For if Statement : 

#include<stdio.h>
int main()
{
int x;
printf("Enter The Number must be 10");
scanf("%d",&x);
if( x==10 )
printf(" x  value is %d equal to 10",x);
}

Multiple Statement in if Statement

The Multiple Statement , it may be happen that in a program .we want to be more than one statement extra to be executed . if the expression following if is satisfied. if such multiple statements are to be executed then they must be placed with in a pair of braces .

Following The Example For Multiple Statement 

#include<stdio.h>
int main()
{
int bouns,cy,yoj,yr_of_ser;
printf("Enter the Current Year and Year Of Joining ");
scanf("%d%d",&cy,&yoj);

yr_or_ser=cy-yoj;
if( yr_or_ser>3 )

{
bouns=2500;
printf("Bouns=rs %d",bouns);
}
}

if - else Statement

The if Statement , itself will execute a single statement or multiple statement . When the expression following if evaluates to true. the statement will be executed. The expression is false , the else statement will be executed. For Following Syntax and Example Bellow.

Program For if - else

#include<stdio.h>

int main()

{

int a,b,c;

printf("Enter The a and b values :");

scanf("%d%d",&a,&b);

c=a+b;

if(c==10)

{

printf("C value equal to 10");

}

else

{

printf("C Value not equal to 10");

}

}

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