"All" operator with powers of 2

Question

Problem
What is the "all" ("all" as in "all powers of two") operator in exponential math?
What the program is supposed to do
Has a GUI with a single textfield that pops-up. The user is prompted to enter the name of the file where the results of the operation are supposed to go. Once they press enter, the program will send the squares of the integers 1 through 10, excluding the powers of two to the designated file.
My current, erroneous application
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.io.*;
public class PowersOf2
     private JTextField field;
     public static void main(String[] args)
          PowersOf2 gui = new PowersOf2();
          gui.go();
     public void go()
          JFrame frame = new JFrame();
          field = new JTextField("Enter name of file where result will be sent");
          field.addActionListener(new sendToFile());
          frame.getContentPane().add(BorderLayout.CENTER, field);
          frame.setSize(300, 50);
          frame.setVisible(true);
     public class sendToFile implements ActionListener
          public void actionPerformed(ActionEvent e)
               FileOutputStream out;
             PrintStream p;
             try
                     out = new FileOutputStream(field.getText());
                     p = new PrintStream( out );
                     int x = 1;
                     int a = ((int)*);
                      while (x<11)
                           if (x != (Math.pow(2, a)))
                                int y = (int)(Math.pow(x,2));
                                p.println("The square of "+x+" is "+y+".");
                                x++;
                           else
                                x++;
                     p.close();
             catch (Exception f)
                     f.printStackTrace();
Thank you very much for your help!

Answer 1

To clarify, I want to know how to represent
all powers of two.I'm sure you don't actually mean what you said. What you really want is, as huskerch suggested, a means to test whether a given integer is a power of two. In pseudo-code this would be :
Create a list;
for all integers i from 1 to 10 :
integer square = i * i;
if square isn't power of two, add square to the list;
next
write list to file.
See : all you need is to find the test which can tell you if a given integer is a power of two. Being able to code such a test has nothing to do with being a beginner in java. I don't mean to be rude but if you don't code yourself this part of your school assignement, there might be little hope for you in the field of computer science.