Heads up! To view this whole video, sign in with your Courses account or enroll in your free 7-day trial. Sign In Enroll
Well done!
You have completed Practice Java Objects!
You have completed Practice Java Objects!
Preview
See how I solve the challenge!
This video doesn't have any notes.
Related Discussions
Have questions about this video? Start a discussion with the community and Treehouse staff.
Sign upRelated Discussions
Have questions about this video? Start a discussion with the community and Treehouse staff.
Sign up
All right, how did you do?
0:00
Don't worry if everything
didn't click right away.
0:02
That's totally normal and it certainly
happened to me when I was learning Java.
0:05
Any who, here's how I solved the problem.
0:09
First, we create a new class named Cow.
0:12
Then we need to add a closing
bracket down at the bottom.
0:18
Next, we will create a private
string variable called
0:23
name private String name
,don't forget the semicolon.
0:27
And to make sure that we will
never able to change it once it
0:32
is been set ,we'll also make it final.
0:35
For step three, we need to add
a constructor that takes on a string
0:41
argument and use this string argument
to populate our name variable.
0:45
So let's type public Cow,
we'll add the string
0:51
parameter And then enter brackets.
0:56
And inside the function,
We should set this.name = name.
1:03
In this case, this.name refers
to the name on our Cow object.
1:12
And name here refers
to the name parameter.
1:18
You can use different names if you'd like,
but
1:21
this is a fairly normal way of doing it.
1:24
For step four, we need to create
a getter to return the name of the Cow.
1:26
This function will be returning a string.
1:31
So we'll start with a return value and
then the name of the function,
1:34
which would be get followed by the name
of the variable, hich is name.
1:39
Inside this function,
all we need to do is return the name.
1:47
Then let's save the file and
move over to main.java.
1:52
Over in main.java, let's start by
creating a new cow named Larry.
1:56
Cow cow = new Cow, and for
the name argument, pass in Larry.
2:01
For the last step, we just need to
print out the name of our Cow object.
2:12
Let's type console and
use the printf function to print it out.
2:16
And while we can just print the name,
since this is an example,
2:21
I'll go ahead and use complete sentences.
2:25
The cow is named, and
we'll use %s for our place holder.
2:28
Then add a period.
2:34
I'll also add %n to give us
a new line in our console.
2:36
That way it'll be a little easier to read.
2:40
Then let's add a closing quotation mark.
2:43
And for the parameter to fill in our %s,
2:46
let's use cow.getName to
retrieve the name of our cow.
2:48
Finally, we just need to run the program.
2:55
If you don't remember how to do this,
start by clearing the screen.
2:58
Then you'll need to compile it, And
use the java command to run it.
3:03
And there we go.
3:12
The cow is named Larry.
3:13
You need to sign up for Treehouse in order to download course files.
Sign upYou need to sign up for Treehouse in order to set up Workspace
Sign up