Java Archive (JAR) file contains .class files and other interesting things. With a JAR file in your classpath, Java programs can look inside the JAR file to find classes that they need. A JAR file is …

In this example I have downloaded the file to a folder name “Downloads” on my desktop. Drag the file to the “Class Files” folder you just created in Eclipse. Now that you have the class file in the proper …

If you already have Maven 3.3.9 or higher installed on your computer, then skip “Installing Maven” and proceed to “Setting JAVA_HOME, PATH, and CLASSPATH Environment Variables” to set up/verify …

The environment variable CLASSPATH lists the places that should be searched when a java class is to be loaded into the JVM. The value is a semi-colon (;) separated list of locations.

• Eclipse maintains a local history of filerevisions which can be accessed by right clicking on the class, then selecting Compare With Local History...

The jar file must be added to the project's build path (classpath). Add it to the Project's Java Build Path property, via the Libraries tab. The class must be imported into the code that will use it. Eclipse offers …

Set up the classpath for a JDBC driver. The JDBC driver is not needed for compiling the java source but it is needed to execute the class. There are so many ways to set up this classpath according to the …