Java tutorial
import java.awt.Polygon; import java.io.BufferedInputStream; import java.io.BufferedOutputStream; import java.io.FileInputStream; import java.io.FileOutputStream; import java.io.IOException; import java.io.ObjectInputStream; import java.io.ObjectOutputStream; public class Main { public static void main(String[] args) { int[] x = new int[] { 1, 2, 3 }; int[] y = new int[] { 4, 5, 6 }; Polygon polygon = new Polygon(x, y, x.length); try { ObjectOutputStream objectOut = new ObjectOutputStream( new BufferedOutputStream(new FileOutputStream("Polygons.bin"))); objectOut.writeObject(polygon); objectOut.close(); } catch (IOException e) { e.printStackTrace(System.err); } try { ObjectInputStream objectIn = new ObjectInputStream( new BufferedInputStream(new FileInputStream("Polygons.bin"))); Polygon theLine = (Polygon) objectIn.readObject(); System.out.println(theLine); objectIn.close(); } catch (Exception e) { e.printStackTrace(System.err); } } }