JamHello

01 importimport means to make the classes and/or packages available in this program java.util.Scanner;
02 
03 /**
04  * All about my application here.
05  * @authorthis is the Javadoc tag for documenting who created the source code Jam Jenkins
06  */
07 publicpublic is used to indicate unrestricted access (any other class can have access) classclass is a group of fields and methods used for making objects JamHello
08 {open braces start code blocks and must be matched with a close brace
09   publicpublic is used to indicate unrestricted access (any other class can have access) staticstatic means that an instance is not required for access (class level access) voidvoid means the method does not return a value mainThe main method is the place where applications begin executing.(String[brackets are typically used to declare, initialize and index (indicate which element of) arrays]brackets are typically used to declare, initialize and index (indicate which element of) arrays args)
10   {open braces start code blocks and must be matched with a close brace
11     System.out.println("Hello World!");Scanner scanner=this assignment operator makes the left side equal to the right sidenewnew is used to create objects by calling the constructor Scanner(System.in);
12     String name=this assignment operator makes the left side equal to the right sidescanner.next();
13     System.out.println("Hello "+adds two numbers together or concatenates Strings togethername);
14   }close braces end code blocks and must match an earlier open brace
15 }close braces end code blocks and must match an earlier open brace