Java-Using a variable created in an if statement

Question

I need to use a variable I created inside an if statement. My code however, doesn't compile. I just need assistance in compiling it while keeping the functionality the same.

Here is a fragment of the code

else if (in.equals("Monster") && in1.equals("Orc"))
  { Players Character = new Orc();
    System.out.println("You have chosen "+in+" type "+in1+". Monsters in general are more attack orientated");
  }
  Character.addAttack(5);

You just need to declare Character outside your if.

ninja.coder
– ninja.coder

2016-03-16 18:11:45 +00:00
Commented Mar 16, 2016 at 18:11 — ninja.coder
– ninja.coder, Commented Mar 16, 2016 at 18:11

ninja.coder · Accepted Answer · 2016-03-16 18:13:47Z

2

In order to make it work outside your if condition you just need to declare the Character outside your if condition.

/* Declare it here */
Players Character = null;

if(...) {
/* Do Something Here */
} else if (in.equals("Monster") && in1.equals("Orc")) { 
    Character = new Orc();
    System.out.println("You have chosen " + in + " type " + 
                       in1 + ". Monsters in general are more attack orientated");
}

/* Now you can use it here */
Character.addAttack(5);

answered Mar 16, 2016 at 18:13

ninja.coder

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Comments

user180100 · Accepted Answer · 2016-03-16 18:12:48Z

2

You have to move the declaration outside the if:

Players character = null; 
// ...
else if (in.equals("Monster") && in1.equals("Orc"))
{ 
    character = new Orc();
    System.out.println("You have chosen "+in+" type "+in1+". Monsters in general are more attack orientated");
}
// TODO: check for null
character.addAttack(5);

Some reading about variables scope: http://www.cs.berkeley.edu/~jrs/4/lec/08

answered Mar 16, 2016 at 18:12

user180100

4 Comments

Tom Over a year ago

You might also want to link to the naming conventions (since you already fixed his variable name).

user180100 Over a year ago

Thanks for the link @Tom

duldi Over a year ago

@RC. If I could call on your services once more, I cant call methods that are in any subclasses of Players. Would you know why?

user180100 Over a year ago

@duldi feel free to ask a new question for that (maybe stackoverflow.com/questions/2701182/…)

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