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Java Java Objects (Retired) Harnessing the Power of Objects Incrementing

Posted by Peyton Potter
Peyton Potter
1,840 Points

Help, is my format wrong for this question? How do I set this up?

I tried to do this code challenge about a week ago and I couldn't do it, and I still can't seem to figure out what I am doing wrong. When I look at the "Preview" I get a huge amount of errors, which makes me think that my format or general set up is totally wrong. Is there a certain order these go in? How different is it from the video we just watched? I tried reversing the charging/fill since the pez example is emptying while the go kart is filling. Seriously. I need help with this, my coding may look horrible but I have no idea what I am doing. Please, any help is greatly appreciated!

GoKart.java 
public class GoKart {
  public static final int MAX_ENERGY_BARS = 8;
  private String mColor;
  private int mBarsCount;

  public GoKart(String color) {
    mColor = color;
    mBarsCount = 0;
  }

  public boolean charge () {
   boolean wasCharged = false;
     if (!isFullyCharged()) {
      mBarsCount++;
       wasCharged = true;
     }
    return wasCharged;
  }

  while (charger.charge()) {
    System.out.println ("Charging...");
  }

  if (charge.isFullyCharged()) {
  System.out.println ("Gokart is fully charged!");
  }

  public String getColor() {
    return mColor;
  }

  public void charge() {
    mBarsCount = MAX_ENERGY_BARS;
  }

  public boolean isBatteryEmpty() {
    return mBarsCount == 0;
  }

  public boolean isFullyCharged() {
    return mBarsCount == MAX_ENERGY_BARS;
  }

}

1 Answer

Jeremy Hill
Jeremy Hill
29,567 Points
Jeremy Hill
Jeremy Hill
29,567 Points

All you need to do in your charge() method is first delete or comment out the line of code they have in there and then do a while loop that will increment the mBarsCount: while(!isFullyCharged()) returns true. Notice that I had a '!' in there, basically saying that while the battery is NOT fully charged increment the mBarsCount or mBarsCount++.

Just the two lines of code is all you need.

I hope this helps.