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Java Java Objects (Retired) Harnessing the Power of Objects Throwing Exceptions

java objects- the part when you throw an exception when laps cant be completed due to battery level. neep help. Thank u.

if (int laps > MAX_BARS) { throw new IllegalArgumentException("Not enough battery remains."); }

what i though of so far

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

}

3 Answers

Sivasuryateja Raparla
Sivasuryateja Raparla
3,966 Points

How about if (mBarsCount < 0) throw the exception

Sivasuryateja Raparla
Sivasuryateja Raparla
3,966 Points

Or even a better thing is if(isBatteryEmpty) throw the exception

Sivasuryateja Raparla
Sivasuryateja Raparla
3,966 Points
public void drive(int laps) {
    // Other driving code omitted for clarity purposes
    mBarsCount -= laps;
   if(isBatteryEmpty)  {
        throw new IllegalArgumentException("Not enough battery remains."); 
    }
  }