Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

Java Java Objects (Retired) Harnessing the Power of Objects Helper Methods and Conditionals

Posted by Just van der Linde
Just van der Linde
Courses Plus Student 1,773 Points

When asking if the PezDispenser is empty, REPL reply's that it cant find variable isEmpty.

//This is my script:

public class PezDispenser {
  public static final int MAX_PEZ = 12;
  private String mCharacterName;
  private int mPezCount;

  public PezDispenser(String characterName) {
   mCharacterName = characterName;
   mPezCount = 0;
  }

  public boolean isEmpty() {
  return mPezCount == 0;
  }

  public void load() {
    mPezCount = MAX_PEZ; 
  }

  public String getCharacterName() {
    return mCharacterName;
  }
}

/*This is the error i get:

ERROR: cannot find symbol                                                                        
  symbol:   variable isEmpty                                                                     
  location: variable pd of type PezDispenser                                                     
    pd.isEmpty; 
*/

1 Answer

GURVINDER SINGH
GURVINDER SINGH
10,589 Points
GURVINDER SINGH
GURVINDER SINGH
10,589 Points

Upon starting the REPL, you have to load the PezDispenser.java file

java -jar javarepl.jar

:load PezDispenser.java

Now you have to create an object using PezDispenser as constructor;

PezDispenser myPez = new PezDispenser("Max");

Now you should try calling the isEmpoty() method:

myPez.isEmpty(); // It will return true

Hope this will help

Just van der Linde
Just van der Linde
Courses Plus Student 1,773 Points

Thanks, it works now!