Creating for/if blocks

[Julius Bezaras]

Hello, 

I'm trying to figure out how to access for or if statement variables. I have parsed java code from a file, but how to access variables from for or if bodyblocks?

Code to read:

package tests;

class PrePostDemo {

     public static void main(String[] args){

          int i = 3;

          if (i > 2)

          {

         for (int j = 1; j>25; j++)

         {

         System.out.println(j);

         }

          }

}

My visitor class (dont mind class name):

private static class BodyChangerVisitor extends VoidVisitorAdapter {

@Override

public void visit(ForStmt n, Object arg) {

Expression statement1 = n.getCompare();

System.out.println(statement1);

}

}

Console output:

j > 25

How do I access individual members of getCompare, getInit, etc. and change them? 

Also I don't understand how to create Expression or Statement variables that could be the problem. Please help!