1.1. Brief description of Java language features1.2. What is a Java virtual machine? What parts does it include? 1.3, briefly describe the working mechanism of the JVM. 1.4. What are the security mechanisms of the Java language? 1.5. What are the characteristics of Java garbage collection mechanism compared with other languages? 1.6, write "Hello world! "Program and compile successfully. 1.7. Practice using the browser to view the Java API documentation. 1.8. List all package names in the Java API documentation. 1.9. List all the classes in Java.lang. 1.10. List all the parent classes in the Applet class in Java.applent. 1.11. List all the interfaces in the java.awt Zhong. 1.12. List common methods in the Java.lang.Math class and summarize the functions of the Math class. 1.13, consult the API documentation, list the common methods of the Java.lang.String class. 1.14, consult the API documentation, list the common methods of the Java.util.Random class. 1.15, consult the API documentation, list the common methods of the Java.awt.Color class.
First, Java overview
