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Java Java Objects Harnessing the Power of Objects Computed Properties

Bill Rebello
Bill Rebello
467 Points
Posted by Bill Rebello
Bill Rebello
467 Points

Computer Properties Exercise task 2 ?

Get error Task 1 is no longer passing? By answer is below" Whats wrong?

public boolean isFullyCharged(){ if (barCount == 8){ return true;

GoKart.java 
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 isBatteryEmpty(){
  if ( barCount == 0){
    return true;
}
 public boolean isFullyCharged(){
   if (barCount == MAX_BARS){
     return true;
   }
 }
 }
}
Bill Rebello
Bill Rebello
467 Points
Bill Rebello
Bill Rebello
467 Points

Thanks for you comment. I tried >>> Same error?? public boolean isFullyCharged(){ if (barCount == 8) { return true; }

2 Answers

Craig Fender
Craig Fender
7,605 Points
Craig Fender
Craig Fender
7,605 Points

One issue I see is that the variable barCount may not be initialized when the method isFullyCharged runs, i.e. you forget to call charge() before you call isFullyCharged(). In that case, since the conditional is false, there is no return on a false bool value.

Instead of doing an if-then statement and returning a true or false based on that condition, just return the equality test to begin with, like: 

public boolean isFullyCharged() {
     return barCount == MAX_BARS;
}
Vladut Astalos
Vladut Astalos
11,246 Points
Vladut Astalos
Vladut Astalos
11,246 Points

You have an extra closing curly bracket at the end. Remove one and it should work, I think.