How do I identify which is static and which is non static method?

I have a question which is how can i justify which is static and which is non static method in a program? I need to explain why ? I think it the version 2 which is static. I can only said that it using using a reference. But am I correct or ?? Please advise....
if I have the following :
class Square
private double side;
public Square(double side)
{ this.side = side;
public double findAreaVersion1()
{ return side * side;
public double findAreaVersion2(Square sq)
{ return sq.side * sq.side;
public void setSide(double s)
{ side = s;
public double getSide()
{ return side;
} //class Square
Message was edited by:
SummerCool

I have a question which is how can i justify which is
static and which is non static method in a program? I
need to explain why ? I think it the version 2 which
is static. I can only said that it using using a
reference. But am I correct or ?? Please advise....If I am reading this correctly, that you think that your version 2 is a static method, then you are wrong and need to review your java textbook on static vs non-static functions and variables.

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How do I identify which is static and which is non static method?

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