In this tutorial, i will explain how to write the simple hello world java program and execute on apache tomcate server. Before start writing Java program you need to install JDK in your machine.
Downloa the JDF file from Click here and install it into your system. After installation set your jdk/bin path and then start writing a simple java program.
Below is the complete example of a simple hello world java program. Create a HelloWorld.java file and copy paste below code:
1 2 3 4 5 6 7 8 9 10 11 12 | /** * Hello world! * @author: Prem Twiari * */ public class HelloWorld { public static void main( String[] args ) { System.out.println( "Hello World!" ); } } |
Save the HelloWorld.java file and open command prompt to compile and run you java program. Use below command to perform the action:
1) Compile: javac HelloWorld.java (It will create the HelloWorld.class file after successfully compilation)
2) Execute: java HelloWorld (It will print the Hello World!)
The output is:
1 | Hello World! |
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Article Tags: Java tutorials
