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## StarProperties
### Instructions
In the following quest, we will work with the same files and classes. You should keep them from one exercise to the following.
Create a file `CelestialObject.java`.
Create a public class named `CelestialObject`.
The class must contains four properties :
* x (double)
* y (double)
* z (double)
* name (String)
The (x, y, z) properties are the coordinates of the object.
For the moment, you should declare the properties as public.
### Usage
Here is a possible ExerciseRunner.java to test your function :
```java
public class ExerciseRunner {
public static void main(String[] args) {
CelestialObject celestialObject = new CelestialObject();
System.out.println(celestialObject.x);
System.out.println(celestialObject.y);
System.out.println(celestialObject.z);
System.out.println(celestialObject.name);
}
}
```
and its output :
```shell
$ javac *.java -d build
$ java -cp build ExerciseRunner
0.0
0.0
0.0
null
$
```
### Notions
[Class](https://docs.oracle.com/javase/tutorial/java/javaOO/classdecl.html)
[Property](https://docs.oracle.com/javase/tutorial/java/javaOO/variables.html)