+import java.awt.BorderLayout;
+import java.awt.Button;
+import java.awt.Dimension;
+import java.awt.Frame;
+import java.awt.GraphicsEnvironment;
+import java.awt.Panel;
+import java.awt.TextArea;
+import java.awt.Toolkit;
+import java.awt.event.ActionEvent;
+import java.awt.event.ActionListener;
+import java.awt.event.WindowAdapter;
+import java.awt.event.WindowEvent;
+import java.awt.event.WindowListener;
+import java.io.IOException;
+import java.io.PipedInputStream;
+import java.io.PipedOutputStream;
+import java.io.PrintStream;