zipcoder/java.javac_introduction

Check Java Installation

which java
which javac 

Check Java Version

java -version
javac -version

Install Java

• Downloads Index
• JDK 8 Direct Links

Create Hello World Program

Start a terminal window.

Create a file called Hello.java.

touch Hello.java

Edit Hello.java with vim or nano so that it contains the code below.

public class Hello {
        public static void main(String[] args) {
                System.out.println("Hello Java!");
        }
}

Compile Program Into ByteCode

javac Hello.java

Execute Program

java Hello

Now, copy all the text from the terminal, and paste it into the PasteTerminalHistory.txt file. And you're done. See, easy lab.