J
J3
J73
JACAL
JACL
Jada
Jade[1]
Jade[2]
JaM
Jam STAPL
Janus[1]
Janus[2]
Jasmin
Java
Java2K
JavaScript
JavaSpaces
JAZ
JCL
JCS-13
JEAN
JESS
JJ
JMSL
JOSS
JOL[1]
JOL[2]
Jossle
JOVIAL
Joy
Joyce
JPL
JPLDIS
JQL[1]
JQL[2]
JS
JScript
JTS
Juno
Jym