Why does this not work ??

Question

what is wrong with the code???

GoKart.java

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

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

  public String getColor() {
    return mColor;
  }

  public void drive() {
    drive(1);
  }

  public void drive(int laps) {
    mBarsCount -= laps;
    int lapAmount = mBarsCount + laps;
     if (lapAmount < 1) {
      throw new IllegalArgumentException("Not enough battery remains");
    }

  }

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

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

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

}

Answer 1 · 2016-01-31T21:28:31Z

January 31, 2016 9:28pm

In the drive method you have to check if there enough battery before subtract the mBarsCount

public void drive(int laps) {
    // Other driving code omitted for clarity purposes
    if(mBarsCount > 0){
      mBarsCount -= laps;
    } else {
      throw new IllegalArgumentException("Not enough battery remains");
    }
  }

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lorcanomahony

lorcanomahony

Why does this not work ??

1 Answer

Geovanie Alvarez

Geovanie Alvarez