You'd either include the paths in your invocations of javac and java with the -cp command line switch, or if you're using a build tool or IDE, it'll have its own method of managing the classpath.

I'm in a Java class that requires us to use JDK1.3.1. The way that we are suppossed to compile is to use the command line and type: javac *.java within the C:\\jdk1.3.1_01\\bin directory. I'm ...

The Eclipse Foundation has just announced the release of a new version of the Eclipse Buildship project, which integrates the Gradle build tool with Eclipse. Version 2.2 supports Java 9 and introduces ...

The JARs, .class files, and other resources specified on a command-line classpath using -classpath or -cp are typically not the only resources on an application’s classpath.