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Java Java Objects Harnessing the Power of Objects Overload Methods

Posted by Carla Barrios
Carla Barrios
636 Points

Modify the drive method to define a parameter of how many laps should be driven. Update method to handle new parameter

public void drive() { lapsDriven++; barCount--; } public void drive(int newParameterGoesHere){ lapsDriven+++=; barCount-=;

GoKart.java 
class GoKart {
  public static final int MAX_BARS = 8;
  private String color;
  private int barCount;
  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() {
    lapsDriven++;
    barCount--;
  }
  public void drive(int newParameterGoesHere){
    lapsDriven+++=;
    barCount-=;
     }
}
Carla Barrios
Carla Barrios
636 Points

Can someone help me to understand what am I doing wrong? I watched the video twice but I still don't get it.

Alexander Davison
Alexander Davison
65,469 Points

Which task are you on? Task 1 or task 2?

Carla Barrios
Carla Barrios
636 Points

I'm on Task 1

1 Answer

Casper Koch
Casper Koch
5,375 Points
Casper Koch
Casper Koch
5,375 Points

You almost got it right and in addition you even mannaged to overload one method. Great job!

In the drive method, which takes the "newParameterGoesHere" parameter, there is a syntax error. You have written: "++=" which does not make sense for Java.

Instead you should write this: lapsDriven += newParameterGoesHere; barCount -= newParameterGoesHere;

In that way you increase and decrease the lapsDriven and barCount variable with the newParameterGoesHere.