Java Interview Questions Made Easy #2 What is the Classloader

The Java ClassLoader is used to load .class files into the JVM at runtime. There are three main types of classloaders: Bootstrap classloader (loads all the Java core libraries like java.lang) Extension classloader (loads classes defined in jar files at $JAVA_HOME$\lib\ext) System classloader (loads classes from the CLASSPATH)* *All classes that you write in your program and all the dependencies from imported JARs are loaded by the System class loader