 So what happens if I now want to create an array, but I don't know The values yet. I do know how big I want to make it, but I don't know the values Let's stay with the idea of say for example a days of the week because I can Now instead of saying the curly brace and adding in my days I actually throw in a new keyword. I throw in a new five-dollar Java keyword new Now what new does is because We're actually dealing with something known as a complex data type. We've been only working with primitive data types as of late But this new this actually kind of creates a little funkiness to it because obviously we're saying this Thing this array this collection is gonna have some values in it I just don't know what they are right now and so I then come in and I say what the data type is But then I add in those square brackets again and this time I actually put a number inside here Now what this number is going to indicate is the length of This new array that I'm creating. So how do I access any of the elements? How do I start to populate my array? Again, I actually I'm going to be using that square bracket again The first thing I need to do is I specify By using my variable name. I said that I was going to name this array variable Name I was going to name this variable array days Now if I want to access any particular Element inside that array. I use the square brackets and I put its Index inside it. So say for example days zero right now. That's empty, but I can fill that up now with Sunday and I can go through and I can continue to do that with each one of these until I get to days six equals Saturday Now I want to throw a little question at you. What's going to happen if I do days at seven? All right. Well, hopefully maybe take a second pause video. Maybe put it in there and see what happens What will happen is that this is Gonna error Why because we only said that we were going to have a length of seven length of seven means that I start counting at zero again zero One two three four five six we count those numbers. That's one two three four five six seven It's a little bit of a confusing a confusion, but I have seven elements with an index of zero two six