Popular Java Classes

The most frequently queried java classes during the past month:

Class	# Queries
java.io.File	3325
javax.swing.JPanel	3068
java.lang.String	2642
java.lang.Thread	2244
java.lang.System	2141
javax.swing.JTable	1999
java.util.Calendar	1984
java.lang.ClassLoader	1951
java.util.List	1797
java.util.Properties	1634
java.sql.Connection	1611
java.net.URL	1555
java.lang.Integer	1546
java.util.Vector	1393
java.util.HashMap	1385
java.io.BufferedReader	1364
java.util.ArrayList	1123
java.io.InputStream	1030
javax.swing.JTabbedPane	1007
java.lang.Runtime	935
java.lang.Exception	847
java.util.Set	706
java.lang.Class	691
java.util.Date	641
java.util.GregorianCalendar	630
org.apache.batik.css.parser.Scanner	543
org.apache.tools.ant.taskdefs.Java	502
java.util.Collection	453
java.util.Stack	433
java.util.Iterator	433
org.xml.sax.XMLReader	421
java.util.StringTokenizer	414
java.lang.reflect.Array	397
java.util.jar.JarFile	381
java.awt.print.PrinterJob	287
javax.servlet.Servlet	271
org.apache.catalina.Engine	248
java.util.regex.Pattern	234
org.apache.catalina.realm.JDBCRealm	221
java.lang.Runnable	183