Java learning is just beginning 2015/6/11

Today, we have just learned Java language development, learned the generation and development of Java language, and learned basic knowledge of Java Foundation.

Learn the basic requirements and ideas for writing the Java language (writing code):

1. What do I need to do to make it clear?

2. Analysis of ideas, what do I do? 1 2 3

3. Clear the steps, each of which statements, methods and objects are used in the thought section.

4. Code implementation, with specific Java language code to reflect the idea.

Three types of Java architecture:

Java EE: Developing applications in an enterprise environment, primarily for Web program development.

Javase: Complete desktop application development.

Javare: Developing electronic consumer products and embedded devices. such as the program in the phone.

1. JDK Java Development and runtime environment

2. JRE Java program running environment, Java Runtime required to run the class library +java virtual machine (JVM)

The configuration of variables that have learned the environment

Learn how to use the Simple DOS command line

Learned the first Java program:

public class Hello

{

public static void Main (string[] args)

{

System.out.println ("Hello World");

}

}

Java learning is just beginning 2015/6/11