diff --git a/src/main/java/rx/transform/Window3.java b/src/main/java/rx/transform/Window3.java
deleted file mode 100644
index 3dc73e7..0000000
--- a/src/main/java/rx/transform/Window3.java
+++ /dev/null
@@ -1,58 +0,0 @@
-package rx.transform;
-
-import io.reactivex.Observable;
-
-import javax.swing.*;
-import java.awt.event.KeyAdapter;
-import java.awt.event.KeyEvent;
-import java.awt.event.WindowAdapter;
-import java.awt.event.WindowEvent;
-import java.util.concurrent.Callable;
-import java.util.concurrent.TimeUnit;
-import java.util.concurrent.atomic.AtomicBoolean;
-
-/**
- * Buffers observed values until a criterium is met and the emits the buffered values as a new observable.
- */
-public class Window3 {
-    static AtomicBoolean newWindow = new AtomicBoolean(false);
-
-    public static void main(String[] args) {
-        JFrame frame = new JFrame("app");
-        frame.addWindowListener(new WindowAdapter() {
-            @Override
-            public void windowClosing(WindowEvent e) {
-                System.exit(0);
-            }
-        });
-        JTextField textField = new JTextField();
-
-        textField.addKeyListener(new KeyAdapter() {
-            @Override
-            public void keyTyped(KeyEvent e) {
-                newWindow.set(true);
-            }
-        });
-
-        frame.getContentPane().add(textField);
-        frame.pack();
-        frame.setVisible(true);
-
-        Observable.interval(1, TimeUnit.SECONDS).window(() -> {
-            return Observable.fromCallable(new Callable<Observable<String>>() {
-                @Override
-                public Observable<String> call() throws Exception {
-                    return Observable.create(emitter -> {
-                        if (newWindow.get()) {
-                            newWindow.set(false);
-                            emitter.onNext("");
-                        }
-                    });
-                }
-            });
-        }).subscribe(observable -> {
-            System.out.println("interrupt");
-            observable.subscribe(value -> System.out.println(value));
-        });
-    }
-}