Thread: Wrong code

The files at the links below contain source code for three interrelated classes, a Dog class, a DogOwner class, and a DogTester class that manipulates objects from the other two classes.

/JavaCS1/src/dogpatch/DogTester.java
/JavaCS1/src/dogpatch/DogOwner.java
/JavaCS1/src/dogpatch/Dog.java

Write a statement that creates a 15 kg showdog called "Hotdog" that's a poodle. Reference this dog using the Dog variable d.

public class DogTester {
 
  public static void main (String[] arg) {
    Dog d = null;

SO i write:

Dog d = new Dog("Hotdog","poodle",15.0,true);

and then there error says "compilation error(line 1, column 5): d is already defined in q1()

i dont understand because its saying use d then it says its already defined..

Your links don't work.

I think somewhere else you must have defined it already.

Having code like

 
Dog d;
 
lines of code in between
 
Dog d = new Dog(params);

would cause an error like that.

Can't say for sure without seeing the code.

-----Edit----

Yep, I can see it now from the code you posted here(still can't see links):

Dog d = null;
 
Dog d = new Dog("Hotdog","poodle",15.0,true);

Change that to:

Dog d = null;
 
d = new Dog("Hotdog","poodle",15.0,true);

Dog d = null;

means you're declaring an object of type Dog called d and having it be null

Dog d = new Dog("Hotdog", "poodle", 15.0, true);

Is trying to make a Dog object called d and initializing it to those values, but there is already a Dog object called d.