Error of my program

Question

Make sure your isFullyCharged method is checking for equality between barCount and MAX_BARS Can not find my mistake if one you guys can help that would be great!

GoKart.java

class GoKart {
  public static final int MAX_BARS = 8;
  private String color;
  private int barCount;

  public GoKart(String color) {
    this.color = color;
    mBarCount = 0;
  }

  public String getColor() {
    return color;
  }

   public void charge() {
    barCount = MAX_BARS;
   }
public boolean isBatteryEmpty() {
return barCount == 0;
} 

 public boolean isFullyCharged() {
 while(!isFullyCharged()) {
 mBarsCount++;
 }
 }


}

Answer 1 · 2017-05-06T20:14:00Z

May 6, 2017 8:14pm

Hello mate,

You've rightfully declared the isFullyCharged() method as having a return type of boolean, however it doesn't actually return anything as it's written. The boolean value to be returned is the result of evaluating is barCount equal to MAX_BARS. Can you picture what that looks like in code?

public boolean isFullyCharged() {
    return //???
}

Hope this helps

Answer 2 · 2017-05-06T20:26:31Z

May 6, 2017 8:26pm

Hi Kelton! If you look in your isFullyCharged(), you see that the method doesn't return any boolean. Since you declared that it should return a boolean and it doesn't - your code won't compile. This is the first step.

Second; like you did in the method isBatteryEmpty, do the same in isFullyCharged(), but have barCount compared to MAXBARS and return the resulting boolean.

Third; look at your variable names. As it is right now, you have three different names for what I believe is supposed to be the same (maybe you have been changing in your code, but forgot to change in other places in your code?). The integer barcount, mBarcount, and mBarsCount should probably have the same name. Anyways, mBarcount and mBarsCount are not declared, so they will also prohibit the code from compiling.

Your implementation of isFullyCharged() method seem to actually be a refueling-method that is using a isFullyCharged-method. Rename that method if that is the case, and start building the implementation again for isFullyCharged and make it as sleek looking as your awesome isBatteryEmpty-method.

Good luck, and have fun =)

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David Geoffry

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Error of my program

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