Introduction
If you are a programmer, then you already know how to use if else statements. If not, it’s time to learn! Understanding if else statements are essential in making sure your programs run properly and efficiently. It may seem intimidating at first, but with the right guidance and plenty of practice, programming logic can become second nature. After reading this article, you will have a fundamental understanding of what an if else statement is used for in C programming as well as some helpful examples to get you started on the right path!
What is If else program in C
If else program in C is a logic-based programming concept that can be used to control the flow of a program. This type of programming uses statements to evaluate conditionals and act based on the outcome. If the condition being tested is found to be true, then a certain code is executed; alternatively, if the condition is false, a different code is executed. If Else program in c allows developers to mandate different actions depending on their intended outcomes. If else programs are extremely useful for programming tasks since they allow for dynamic behavior with minimal effort and ensure that the program flows smoothly even if unexpected input or conditions arise.
Types of If else statements
There are three types of if else statements in C language, which are
- If statements in C
- If else statements in C
- If else if ladder statements in C
If statements in C
If statements in C form the structural foundation for many programs. If statements are used to execute only certain sections of code when a certain condition is met. If statements accept logical comparisons, such as greater than or less than, and can also perform complexity checks like comparing two strings. If conditions can be chained together, meaning that another if statement may be enclosed within an existing one - this allows power users to create complex programming paths while still making their code readable. If statements are one of the most important concepts any user will encounter when programming with C and should not be taken lightly.
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Syntax
if(expression){
//code to be executed
}
Example
#include<stdio.h>
int main(){
int number=0;
printf("Enter a number:");
scanf("%d",&number);
if(number%2==0){
printf("%d is even number",number);
}
return 0;
}
Output
Enter a number:8
8 is even number
enter a number:5
If else statement in C
If else statement in C might be one of the most versatile tools out there for programming. If else statements are operators that allow a programmer to write code that will return different outputs depending on certain conditions, ensuring that a program can take multiple paths according to circumstances. If else statements become very powerful when used in loops, where they can check if certain conditions change at each iteration and consequently result in completely different sets of code being run. If else statements serve as a cornerstone for elegantly written programs and it's no surprise that C remains one of the world's most popular programming languages - its functional reliance on If else statements play an essential part in this respect.
Syntax
if(expression){
//code to be executed if condition is true
}else{
//code to be executed if condition is false
}
Example
#include <stdio.h>
int main() {
int num = 10;
if(num < 5) {
printf("Number is less than 5\n");
}
else if(num < 10) {
printf("Number is between 5 and 9\n");
}
else {
printf("Number is 10 or greater\n");
}
return 0;
}
Output
Number is 10 or greater
If else if ladder statement in C
If else if ladder statement in C is a programming tool that can be used to execute different parts of code based on various conditions. This type of decision-making statement has multiple blocks of assertional logic, each resulting in one of two outcomes - true or false. If the first condition is evaluated as true, the block associated with it will be executed. If it returns false, the next condition will be evaluated, and so on until one of the conditions returns true and its associated code is triggered. If all criteria are false in If else if ladder statement in C, an optional “else” block at the end can be used to indicate what should happen. This invaluable tool allows multiple stages within a program's flow to be managed gracefully and efficiently ensuring code does not become overly bloated nor overly complex.
Syntax
if(condition1){
//code to be executed if condition1 is true
}else if(condition2){
//code to be executed if condition2 is true
}
else if(condition3){
//code to be executed if condition3 is true
}
...
else{
//code to be executed if all the conditions are false
}
Example
#include<stdio.h>
int main(){
int number=0;
printf("enter a number:");
scanf("%d",&number);
if(number==20){
printf("number is equals to 20");
}
else if(number==50){
printf("number is equal to 50");
}
else if(number==100){
printf("number is equal to 100");
}
else{
printf("number is not equal to 20, 50 or 100");
}
return 0;
}
Output
enter a number:5
number is not equal to 20, 50 or 100
enter a number:50
number is equal to 50
Summary
In conclusion, if else statements in C are a crucial part of writing an efficient program. They help to organize code and can account for a variety of conditions by means of comparison operators and logical operators. If used correctly, if else statements can save time instead of running through multiple lines of code, there's only one program that runs depending on whether a certain condition is true or false. Knowing how to use them properly is thus essential for any programmer! Thankfully, with the number of tutorials and resources available out there today, learning how to work with if else statements in C isn't too difficult. So test your knowledge and get yourself comfortable with using if else statements you'll thank yourself later when you're dealing with large-scale coding tasks!
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