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Java Java Objects Harnessing the Power of Objects Increment and Decrement

Java help

pls help

class GoKart {
  public static final int MAX_BARS = 8;
  private String color;
  private int barCount;

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

  public String getColor() {
    return color;

  public void charge() {
    barCount = MAX_BARS;

  //public boolean drive(){
    private int lapsDriven++;

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

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

1 Answer

You didn't make a private int named lapsDriven, at the top under your private int barCount, you need to make a new private int. You also have your drive method commented out. Your method is a boolean and should be void because it returns nothing, you tried to create a new private int named lapsDriven inside of your method which you cannot do, it needs to be at the top. It should look like: public void drive() { lapsDriven++; } and you should have the private int lapsDriven where your other variables are.