How to run a java code from command prompt which is using API?

java shell command-line jar

The classpath is where Java searches for actual .class files in fodlers by package.
Java does not look at JARs that are inside classpath folders.

You need to put the JAR file itself in the classpath; not the folder that contains it.

(alternatively, you can include folder/*.jar to put every JAR in that folder in the classpath)

java shell command-line jar

The JAR files still need to be on the classpath when running your application, not just when compiling.

java shell command-line jar

When running your Java application, the JVM needs to know about the jars also.

java -cp [path-to-twitter4j-jars] MyCode

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