cannot find other files

My compiler no longer finds .class files in the directory you work in, it says;cannot resolve symbol: method x or class y.Is this fixable or will i have to reinstall the whole thing?
[203 byte] By [Uffemana] at [2007-10-2 11:48:19]
# 1
Probably classpath troubles. Use javac -classpath . thefile.java
atmguya at 2007-7-13 6:09:10 > top of Java-index,Developer Tools,Java Compiler...
# 2
thx man
Uffemana at 2007-7-13 6:09:10 > top of Java-index,Developer Tools,Java Compiler...