Java question ?

Question

Anyone could answer this question .
How Java reads the text, bottom to top or top to bottom?
I'll appreciate the answer. thanks

Answer 1

JuanRamoneMH

What do you mean by "reads the text"?

Answer 2

I meant when we write the code!!

Answer 3

JuanRamoneMH

Ok so tell me one thing if I print first after that declaring variable then what will happen?

public class Program
{
public static void main(String[] args) {

System.out.println (i);

int i = 0;
}
}

what will happen here?

Answer 4

I get it, but It comes to my attention when I wrote classes, because I put the class at the top and than I put at the bottom and I got the same result. so it looks like it does not matter in Java. I just wanted to make sure and find the answer what I thought.

Answer 5

JuanRamoneMH

See Java compiler reads from top to bottom even I think every programming language does the same thing.

You can create class or method anywhere but that would not work untill you don't call them.

Suppose I have a method written at bottom in the class but If I do not call that method then compiler will not read that method.

If you are calling that method then compiler will first read method then go inside method functionality.

Answer 6

Great. Now I am more clear than before.
Thank you very much for the info.

Answer 7

JuanRamoneMH

I hope this explanation will help you.

----------------

public class Program
{
public static void main(String[] args) {
readThisMethod();// compiler will first read this line then it will check this method is exist or not.

//If compiler found this method then it will go read that method functionality and will print value
}

//If I write this method on above the method then compiler will read it first and store in JVM for further action

static void readThisMethod() {
System.out.println ("Hi");
}
}