Javase learning the first Java program (ii)

After installing and configuring the Java environment

1. Create a new suffix for Java documents For example, we create a new Hello.java

In the file we define a class

public class hello{public static void Main (string[] args) {System.out.println ("Hello java!"); }}

2. Run the program through CMD Javac and Java

2.1. Compiling the new Java file with Javac

A hello.class is generated after a successful compilation

2.2. The Java Hello does not need a suffix in the direct running format

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Javase learning the first Java program (ii)