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Java Java Objects (Retired) Harnessing the Power of Objects Methods and Constants

Posted by Matthew Earlywine
Matthew Earlywine
2,560 Points

I need to do something to make this open to the class. Not sure what I am doing wrong.

These GoKarts have a single rechargeable battery that have a display of bars to measure its energy level. Each battery has a maximum of 8 bars.

For this task, let's add a constant field to the class that stores the maximum number of energy bars. Make sure the fieldcannot be changed and is accessible from the class, not just the instance. Use the naming convention we learned.

public class GoKart { public final int MAX_BARS = 8; private String mColor;

public GoKart(String color) { mColor = color; }

public String getColor() { return mColor; } }

GoKart.java 
public class GoKart {
  public final int MAX_BARS = 8;
  private String mColor;

  public GoKart(String color) {
    mColor = color;
  }

  public String getColor() {
    return mColor;
  } 
}

3 Answers

Matthew Earlywine
Matthew Earlywine
2,560 Points
Matthew Earlywine
Matthew Earlywine
2,560 Points

I figured it out all you have to do is: public static final int MAX_BARS = 8;

Kourosh Raeen
Kourosh Raeen
23,733 Points
Kourosh Raeen
Kourosh Raeen
23,733 Points

Well, that is exactly what I told you to do in my previous comment :)

Matthew Earlywine
Matthew Earlywine
2,560 Points
Matthew Earlywine
Matthew Earlywine
2,560 Points

I can't believe I didn't see that!!!! All I saw was MAX_NUMBER_OF_BARS and I was so confused why that would matter. Oh well, thanks for your help.

Kourosh Raeen
Kourosh Raeen
23,733 Points
Kourosh Raeen
Kourosh Raeen
23,733 Points

Make it also static:

public static final int MAX_NUMBER_OF_BARS = 8;
Matthew Earlywine
Matthew Earlywine
2,560 Points

I still get the same error. I need to make it accessible from the class. I have rewatched the video for the quiz but I am not finding a way to do the naming convention.