yego.me
💡 Stop wasting time. Read Youtube instead of watch. Download Chrome Extension

Objective-C iPhone Programming Lesson 1 | Part 2


less than 1m read
·Nov 3, 2024

Hey guys, this is Mids And1 with part two of Objective C lesson one.

And so, if we run this, it will semi do what we wish, then not completely. All right, so we can type Alex, click hi; that now says Alex.

The thing is, it doesn't say "Hello Alex." So to do this, we're going to do a bit more complicated code. Um, I'm not going to explain this to you right yet.

All right, so this is basically saying take the piece of text "Hello," append our text. All right? What you have to understand is this right here, this line of code represents a piece of text.

This line of code represents a piece of text. This line of code together represents a piece of text. When you do setText: you have to have something that represents a piece of text.

After a piece of text, just like a UI label or UI text field, have something called on it called setText:. Text itself can have something called on it called stringByAppendingString:, which adds more text onto it.

So, we're going to take the text "Hello " and add on to the end of it the text of our text field. Now, if we run this, Alex, hello Alex! Right?

I can type bill. Right. Um, so this is our first hello world application for the iPhone. You can experiment with some of the stuff I've taught you: do multiple labels, uh, stuff like that.

Um, expect to hear from me shortly on my next uh, tutorial. So, thanks for watching M kids in one. Subscribe and goodbye. Bye!

More Articles

View All
Charlie Munger's HUGE Warning of a “Lost Decade” for the Stock Market (2022-2032)
It is no secret that the stock market is at all-time highs. This current bull market has been the longest and strongest in the history of the stock market, and this has people thinking that the good times and strong stock market returns will last forever.…
International Women's Day Livestream: Women In Technology For Good
Hello and welcome to Khan Academy’s International Women’s Day fireside chat! I am Rachel Cook, the Senior Communications Manager here at Khan Academy, and you are in for a treat today because we have an amazing conversation on deck with two badass tech ch…
Rental Income Podcast Interview: How I bought 3 properties by 22 years old
Inspiring interviews with today’s top landlords. This is the Rental Income Podcast. And now, Damle. My guest on the podcast today had incredible timing when he decided to start buying rental properties. He bought three properties at what, looking back on…
Solubility and intermolecular forces | AP Chemistry | Khan Academy
In this video, we’re going to talk about solubility, which is just a way of describing how well certain solutes can dissolve in certain solvents. Just as an example, we could go to our old friend sodium chloride and think about why it dissolves well in wa…
Molarity | Intermolecular forces and properties | AP Chemistry | Khan Academy
In this video, we’re going to talk about one of the most common ways to measure solute concentration in a solution, and that is molarity. Molarity is defined as the number of moles of solute (the thing that we are dissolving in a solvent) divided by the l…
Graphing square and cube root functions | Algebra 2 | Khan academy
We’re told the graph of ( y ) is equal to (\sqrt{x}) is shown below. Fair enough, which of the following is the graph of ( y ) is equal to ( 2\times\sqrt{-x}-1 )? They give us some choices here, and so I encourage you to pause this video and try to figure…