If…else statement in C
If…else statement Definition :
In C, the If…else statement is used to carry out operations depending on a particular situation. If and only if the provided condition is true, the operation described in the if block are carried out otherwise else block is carried out.
Syntax:
if(condition){
// statements to be executed if condition is true;
}
else{
// statements to be executed if condition is false;
}
Working of if…else statement :
- Step 1 : In the first step, condition/expression is checked whether it is true or false.
- Step 2 : If statement is True, if block will be executed for performing the operations.
- Step 3 : If the condition is false , else block will be executed for performing the executions
Example 1:
#include<stdio.h>
int main() {
int i=5;
if(i>1){ // checking the condition and take decision
printf("PrepInsta is one of the best for placement preparation");
}
else{
printf("PrepInsta");
}
return 0;
}
Output:
In the above example , the value of i initialize as 5 and when the condition of if (i>1) is checked , this is taken as true and block if is executed and “PrepInsta is one of the best for placement preparation” will be print on the output screen.
Example 2:
#include<stdio.h>
int main() {
int i=5;
if(i<1){ // checking the condition and take decision
printf("PrepInsta is one of the best for placement preparation");
}
else{
printf("PrepInsta");
}
return 0;
}
Output:
In the above example , the value of i initialize as 5 and when the condition of if (i<1) is checked, this is taken as false and block else is executed and “PrepInsta” will be print on the output screen.
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