Classpath in a jar file

Skip to content. Change Language. Related Articles. Table of Contents. Improve Article. Save Article. Like Article. Last Updated : 07 Aug, Attention reader! Illustration: import java. ArrayList; It makes the ArrayList class available in the package java. Now, it is impractical for it to go through every folder on your system and search for it.

The -classpath option is preferred because you can independently set it for each application without impacting other applications and without changing its meaning for other applications. Skip to content. Change Language.

Related Articles. Table of Contents. Improve Article. Save Article. Here is few more important points about using Java 6 wildcard to include multiple JAR in classpath:. Wildcard only match JAR files and not classes. One more important point is that wildcard to include all JAR is not honored in case if you are running Java program with JAR file and that have Class-Path attribute in manifest file. Adding JAR in ext directory e. This is one more way you can include multiple JAR in your classpath.

These were couple of ways you can add JAR files in your Classpath. Java 6 wildcard is preferred way of adding multiple JAR in class path along with -cp and -classpath command line option. In the event that you are working in multiple OS than it is too fine to recall that two directories in classpath are divided using semi colon ; in windows based systems and in UNIX based system colon : is used.

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