Subdir s1 = "lang"
Subdir s2 = "util"
Subdir s3 = "io"
Subdir s3 = "text"
Subdir s3 = "applet"
Subdir s3 = "awt"
Subdir s3 = "beans"
Subdir s3 = "math"
Subdir s3 = "net"
Subdir s3 = "rmi"
Subdir s3 = "security"
Subdir s3 = "sql"
;