Java hashcode method error

Question

Hey guys I am having problems with my hashcode method I wrote. I am trying to add together the hashcode of the variables name and price and return the answer. I keep having the error "Remove Argument to match hashcode()".... My code is provided below. I think the issue is having something to do with me trying to get the hashcode of the price. If someone could lead me to the right direction it would be appreciated. Thanks all!

public int hashcode()
{

 double answer = name.hashcode() + Double.hashcode(new Double(price));
 return (int) answer;

}

Ernest Friedman-Hill · Accepted Answer · 2014-05-14 21:21:59Z

4

You want "new Double (price).hashCode()" for the "price" part of the expression.

answered May 14, 2014 at 21:21

Ernest Friedman-Hill

81.9k11 gold badges158 silver badges192 bronze badges

Sign up to request clarification or add additional context in comments.

Comments

Kakarot · Accepted Answer · 2014-05-14 21:23:57Z

2

The way you are invoking hashCode on Double class is wrong, hashCode() is a member function & not a static function.

You can use the following :

public int hashCode()
{

  int answer = name.hashCode() + new Double(price).hashCode();
  return answer;

}

answered May 14, 2014 at 21:23

Kakarot

4,2522 gold badges18 silver badges18 bronze badges

Collectives™ on Stack Overflow

Java hashcode method error

2 Answers 2

Comments

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Related