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Java Java Objects (Retired) Harnessing the Power of Objects Method Signatures

Justin Wilson
Justin Wilson
461 Points

Method signatures

I keep getting "check to make sure you are passing in 1"

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(int laps) {
    // Other driving code omitted for clarity purposes
    mBarsCount -= laps;
  }

  public void drive() {
   drive(mBarsCount--);
  }

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

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

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

}

1 Answer

Teja Tummalapalli
Teja Tummalapalli
5,592 Points

Good that you are trying to re use the existing drive(int laps) method. This method decreases the mBarsCount provided laps . The objective here is to decrease mBarsCount by 1.

 public void drive(int laps) {
    // Other driving code omitted for clarity purposes
    mBarsCount -= laps;
  }

  public void drive() {
   drive(mBarsCount--);
  }

Suppose the value of mBarsCount is 5. Then invokingdrive() will call drive(4) (5-1). Instead just call drive(1) in drive()