Demonstrates how to create a "HelloWorld" class which basically has the following code:

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

public class Test
minor version: 0
major version: 46
flags: ACC_PUBLIC, ACC_SUPER
Constant pool:
#1 = Class              #2             // Test
#2 = Utf8               Test
#3 = Class              #4             // java/lang/Object
#4 = Utf8               java/lang/Object
#5 = Utf8               <init>
#6 = Utf8               ()V
#7 = Utf8               Code
#8 = Methodref          #3.#9          // java/lang/Object."":()V
#9 = NameAndType        #5:#6          // "":()V
#10 = Utf8               LineNumberTable
#11 = Utf8               LocalVariableTable
#12 = Utf8               this
#13 = Utf8               LTest;
#14 = Utf8               main
#15 = Utf8               ([Ljava/lang/String;)V
#16 = Fieldref           #17.#19        // java/lang/System.out:Ljava/io/PrintStream;
#17 = Class              #18            // java/lang/System
#18 = Utf8               java/lang/System
#19 = NameAndType        #20:#21        // out:Ljava/io/PrintStream;
#20 = Utf8               out
#21 = Utf8               Ljava/io/PrintStream;
#22 = String             #23            // Hello World
#23 = Utf8               Hello World
#24 = Methodref          #25.#27        // java/io/PrintStream.println:(Ljava/lang/String;)V
#25 = Class              #26            // java/io/PrintStream
#26 = Utf8               java/io/PrintStream
#27 = NameAndType        #28:#29        // println:(Ljava/lang/String;)V
#28 = Utf8               println
#29 = Utf8               (Ljava/lang/String;)V
#30 = Utf8               args
#31 = Utf8               [Ljava/lang/String;
#32 = Utf8               SourceFile
#33 = Utf8               Test.java
{
public Test();
descriptor: ()V
flags: ACC_PUBLIC
Code:
stack=1, locals=1, args_size=1
0: aload_0
1: invokespecial #8                  // Method java/lang/Object."":()V
4: return

public static void main(java.lang.String[]);
descriptor: ([Ljava/lang/String;)V
flags: ACC_PUBLIC, ACC_STATIC
Code:
stack=2, locals=1, args_size=1
0: getstatic     #16                 // Field java/lang/System.out:Ljava/io/PrintStream;
3: ldc           #22                 // String Hello World
5: invokevirtual #24                 // Method java/io/PrintStream.println:(Ljava/lang/String;)V
8: return
SourceFile: "Test.java"