Calling the jar package without the IDE compiling the Java program

Calling a jar package under a specific directory

JAVAC-CP D:\javatest\dom4j.jar Dom4jdemo.java

This section must note that d:\javatest is the directory where the Dom4jdemo.class resides, the runtime, d:\javatest must include D:\javatest>java-classpath d:\javatest\ Dom4j.jar;d:\javatest\jaxen.jar;d:\javatest Dom4jdemo (note the semicolon after the jar)

If you are writing like this, you will be prompted not to find the main function of Dom4jdemo

D:\javatest>java-classpath D:\javatest\dom4j.jar;d:\javatest\jaxen.jar Dom4jdemo

Calling the jar package without the IDE compiling the Java program