Answer / javamasque

Java Classloader is part of Java runtime environment which loads class on demand (lazy loading) into JVM (Java Virtual Machine) not only from local file system but from remote system or web.

There are 3 types of Classloader.
i. Bootstrap Classloader: Loads core java API file rt.jar from <JAVA_HOME/jre/lib> folder.
ii. Extension Classloader: Loads jar files from <JAVA_HOME/jre/lib/ext> folder.
iii. System/Application Classloader: Loads jar files from path specified in environment variable as CLASSPATH.

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