Interface Help

[Channy]

Hi all,

I need help with a homework question.
I created the following interface:

public interface Fixable{
    
public void fix (); 
public void log();

public class PowerOn implements Fixable{

public void fix (){
        System.out.println("PowerON"); 
      
}
public void log(){
System.out.println("Log PowerON");  
}
}
public class FixWindow implements Fixable{

public void fix (){
System.out.println("Fix Window");
}
public void log(){
System.out.println("Log Fix Window");
}
}
}

I'm trying to reference either PowerOn or FixWindow from another class using (although I'm supposed to return a Fixable type..):

Fixable getFixable(int errorcode){

 if(errorcode == 1){
       return new PowerOn();
 }else{
       return new FixWindow();
 }
}

I've also tried:

Fixable getFixable(int errorcode){

 if(errorcode == 1){
       return new Fixable.PowerOn();
 }else{
       return new Fixable.FixWindow();
 }
}

I keep getting the error: "Cannot find symbol: PowerOn()"
I've made sure to add the the package name at the top of the interface file and import all files from the package.. Any Help would be wonderful!!
[ June 19, 2007: Message edited by: geek_azoid ]

[Bear Bibeault]

"geek_azoid",

There aren't many rules that you need to worry about here on the Ranch, but one that we take very seriously regards the use of proper names. Please take a look at the JavaRanch Naming Policy and adjust your display name to match it.

In particular, your display name must be a first and a last name separated by a space character, and must not be obviously fictitious.

Thanks!
bear
JavaRanch Sheriff

[Ernest Friedman-Hill]

I would try your second alternative again, because it's correct and should work fine, as long as your second class has access to the Fixable interface.

[Channy]

Hi, Thanks for your reply!

When you say "access to Fixable interface" do you mean by importing the package, or something else?

import tme2.*;
 
public class GreenhouseControls extends Controller implements Serializable {
 
Fixable getFixable(int errorcode){

  if(errorcode == 1){

return new Fixable.PowerOn();

 }else{
 
return new Fixable.FixWindow();
 }
   }
}

[Ernest Friedman-Hill]

Originally posted by geek_azoid:
you say "access to Fixable interface" do you mean by importing the package

Really I mean that if Fixable is in a different package, then it must be public. importing just changes the syntax you can use -- whether you need to specify the package name along with the class name.
[ June 19, 2007: Message edited by: Ernest Friedman-Hill ]