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Java Java Objects Harnessing the Power of Objects Handling Exceptions

Posted by Ashish Shah
Ashish Shah
1,468 Points

Why this is showing compilation error?

Why this is showing compilation 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");
    }
    try {

    kart.drive(42);

} catch(IllegalArgumentException iae) {

    System.out.println( iae );
    }
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;
  }

}

2 Answers

Samuel Ferree
Samuel Ferree
31,722 Points
Samuel Ferree
Samuel Ferree
31,722 Points

I think You're missing a couple close parens. one for your function, and another for your class. You've got some tabbing off so it's hard to see, I've corrected it and added this missing parens below.

class Example {

  public static void main(String[] args) {
    GoKart kart = new GoKart("purple");
    if (kart.isBatteryEmpty()) {
      System.out.println("The battery is empty");
    }
    try {
      kart.drive(42);
    } catch(IllegalArgumentException iae) {
      System.out.println( iae );
    }
  } // <--- this guy
} // <--- and this guy right here
Ashish Shah
Ashish Shah
1,468 Points

Thanks!!

Jeremy Hill
Jeremy Hill
29,567 Points
Jeremy Hill
Jeremy Hill
29,567 Points

It looks like you just need to add the method: getMethod() inside your parenthesis on your output:

class Example {

  public static void main(String[] args) {
    GoKart kart = new GoKart("purple");
    if (kart.isBatteryEmpty()) {
      System.out.println("The battery is empty");
    }
    try{
      kart.drive(42);

    }catch(IllegalArgumentException iae){
       System.out.println(iae.getMessage());
    }
  }

}