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

Posted by Devin Tripp
Devin Tripp
1,540 Points

keeps saying that ! is a compiler error dont know what to do

^^

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 String getColor() {
    return mColor;
  }

  public void charge() {
    while(!MAX_ENERGY_BARS) {
     mBarsCount++; 
    }
  }

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

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

}

1 Answer

Rob Bridges
seal-mask
.a{fill-rule:evenodd;}techdegree seal-36
Rob Bridges
Full Stack JavaScript Techdegree Graduate 35,459 Points
Rob Bridges
.a{fill-rule:evenodd;}techdegree seal-36
Rob Bridges
Full Stack JavaScript Techdegree Graduate 35,459 Points

Hey Devin,

You are very close on this, the only thing that needs to change to pass this challenge is instead of saying !MAX_ENERGY_BARS which causes the problem as your trying to attach the boolean to an int, instead use the method isFullyCharged.

So it should look like

public void charge() {
    while(!isFullyCharged) {
     mBarsCount++; 
    }
  }

Give me a reply if this doesn't end up working.

Thanks.