Java call a function outside a class

Question

Is there a way to call a function outside a class? I don't know how to say it but I have an example.

class Class1{
    class Class2{
          public void callFunctionInC1(){
                //how can I call funtionNeedtoBeCalled
          }
    }
    public Class1(){
          Class2 c2 = new Class2();
          c2.callFunctionInC1();
    }
    public void functionNeedtoBeCalled(){
          //do something
    }
 }

It sounds weird but I do have a reason to do that. Is there anyway to do that? Thanks.

Are you using inner classes in your *real* situation, or did the example just come out this way? It makes a big difference. — Jon Skeet, Aug 05 '12 at 21:11

score 8 · Accepted Answer · edited May 23 '17 at 10:29

8

Class1.this.functionNeedtoBeCalled();

Here is a link with some more discussion. http://www.velocityreviews.com/forums/t137884-inner-class-explicit-outer-class-method-call.html

Calling outer class function from inner class

edited May 23 '17 at 10:29

Community

1
1

answered Aug 05 '12 at 21:13

Frank Sposaro

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2

haha, +1, I think Boris Treukhov was even faster in his comment. – Thomas Uhrig Aug 05 '12 at 21:16

score 4 · Answer 2 · answered Aug 05 '12 at 21:11

4

Yes: Class1.this.functionNeedtoBeCalled();

answered Aug 05 '12 at 21:11

Thomas Uhrig

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Java call a function outside a class

2 Answers2