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Java Java Objects Harnessing the Power of Objects Handling Exceptions

I have no idea what I'm doing wrong...

I try surrounding my try/catch but cannot figure out why I keep throwing a compiler error.

Example.java
class Example {

  public static void main(String[] args) {
    GoKart kart = new GoKart("purple");
    if (kart.isBatteryEmpty()) {
      System.out.println("The battery is empty");
    }
    kart.drive(42);
  }
try {
  kart.drive(42).
    } catch(IllegalArgumentException e) {
      System.out.println(e);
    }    
  }
GoKart.java
class GoKart {
  public static final int MAX_BARS = 8;
  private int barCount;
  private String color;
  private int lapsDriven;

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

  public String getColor() {
    return color;
  }

  public void charge() {
    barCount = MAX_BARS;
  }

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

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

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

  public void drive(int laps) {
    if (laps > barCount) {
      throw new IllegalArgumentException("Not enough battery remains");
    }
    lapsDriven += laps;
    barCount -= laps;
  }

}

1 Answer

Tabatha Trahan
Tabatha Trahan
21,410 Points

It looks like all you need to do is remove the call to the drive method located immediately after your If statement checking battery level, along with the closing curly brace after that method call. Since you want to try the call to drive, which may potentially introduce an error, you want to make sure you put it inside the try block.