[class loader in reading notes]java

Most of the following are from Zhou Zhiming's in-depth understanding of Java virtual machines.

The ClassLoader is an innovation in Java and one of the main reasons for Java's popularity, which was originally developed to meet the needs of Java applets.

What is an applet? As a novice, do not know what the applet is a ghost, look at the explanation of Baidu Encyclopedia, should understand: Javaapplet is a small application written in Java language, can be embedded directly into the Web page, and can produce special effects.

So the applet is currently not available to us, but the class loader in the class hierarchy, OSGI, hot deployment, code encryption and other fields shine, become a Java technology system in an important cornerstone, can be described as roundabouts, received east.

Let's look at an example:

　　

[class loader in reading notes]java