"javac" -source 1.6 -Xlint:unchecked  nB.java
warning: [options] bootstrap class path not set in conjunction with -source 1.6
1 warning
"/usr/lib/jdk/bin/jar" cvfm "000217.jar" nB.mf *.class
added manifest
adding: nB.class(in = 1286) (out= 745)(deflated 42%)
