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Java Java Objects Harnessing the Power of Objects Overload Methods

Posted by hangyul lee
hangyul lee
455 Points

Create a new method named drive that accepts no arguments. It should call the newer drive method passing in a 1 for the

Pls help me...

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(int laps){
    lapsDriven += laps;
    barCount -= laps;
  }
  public void drive(int  1){

  }
}

2 Answers

jacobproffer
jacobproffer
24,604 Points
jacobproffer
jacobproffer
24,604 Points

Hey Hangyul,

You're close. But remember, variable names cannot start with a decimal value. Instead, give it a meaningful name such as laps. Now, we'll want to modify the method body to reflect this parameter. In this case, you'll want to make lapsDriven plus equals to laps and barCount minus equals to laps.

public void drive(int laps) {
    lapsDriven+=laps;
    barCount-=laps;
}
hangyul lee
hangyul lee
455 Points

Thanks Jacob! But my question was how to pass in a 1? Do you have ideas?

Yanuar Prakoso
Yanuar Prakoso
15,196 Points
Yanuar Prakoso
Yanuar Prakoso
15,196 Points

Hi there...

You need to modify the other drive method:

public void drive(int 1){//<-- this is not how you pass integer
}

You need to use the method overloading principle taught by Craig before this challenge. You can use it to create anothe drive method and called the earlier drive method that has integer to pass on. This is how I do that: 

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