Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

iOS Objective-C Basics More Operators! Logical Operators: AND, OR and NOT (Part 2)

Jabor Al thani
Jabor Al thani
2,926 Points

If and Else if differences?

Im trying to get my mind to understand the differences between If statements and else if statements ?

2 Answers

William Li
PLUS
William Li
Courses Plus Student 26,868 Points
if (condition1) {
  statement1
} else if (condition2) {
  statement2
}

In this if..else if examples, if the condition1 happens to be true, the program execution will skip checking the condition2. That's the nature of the else keyword, else clause of the conditional will be checked only in the case when the if clause happens to be false.

if (condition1) {
  statement1
}
if (condition2) {
  statement2
}

In this example we use multiple if statements instead of if.. else if. By writing it this way, each if statement becomes individual codeblock on its own, and they have no connection to each other. Here, the condition2 will ALWAYS be checked regardless of the truthy value of condition1.

Hope this helps.

George Vardikos
George Vardikos
6,889 Points

Pretty much William Li answer just briefly:

if (something == ball) { go play football } else { go swim } //if something is true then execute otherwise go swim

if(something) {execute} else if (someone) {execute 2} else {shut down} // if something is true execute EXCEPT if someone is true where you will execute 2 BUT if all are false then shut down.