-import java.awt.BorderLayout;
-import java.awt.Font;
-import java.awt.FontMetrics;
-import java.awt.Panel;
-import java.awt.Point;
-import java.awt.event.InputEvent;
-import java.awt.event.MouseEvent;
-import java.awt.event.MouseListener;
-import java.awt.event.MouseMotionListener;
-import java.util.List;
-import java.util.Vector;
-