What's Better?

Hi, I was wondering what the best way to get an instance of a class is. Would I create a static instance of the class in the class like this:

Code:java

public <classname> instance;
public static <classname> getInstance(){
  return instance;
}

Or would I create a constructor in another class:

Code:java

private <otherclass> class;
public <classname>(<otherclass> class){
  this.class = class;
}

I've seen it both ways, but I was wondering which would be the easiest to use. Thanks!

 

How would you get instance in second option ?

Edit: nvm, I was confused by the name of the variable. I see no point in creating second class when you can have static getInstance() method.

 

You can't use "this" in a static method, as the static method isn't related to an object.

 

He's right, you will have to have private static field in your class and a way to set it.

Code:

private static YourClass instance;

You can then have public static getter and protected setter, to prevent people from rewriting your istance.

 

Yeah, I know, just had no IDE when I wrote it.