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def printSpam():
    print 'Spam!'
    
printSpam()

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# ======================== Elasticsearch Configuration =========================
#
# NOTE: Elasticsearch comes with reasonable defaults for most settings.
#       Before you set out to tweak and tune the configuration, make sure you
#       understand what are you trying to accomplish and the consequences.
#
# The primary way of configuring a node is via this file. This template lists
# the most important settings you may want to configure for a production cluster.
#
# Please see the documentation for further information on configuration options:

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Java numbers..

that every Java programmers/developers should know. Feel free to contribute by forking and pull requests!

###Size of primitive data types

• byte: 1 byte, 8-bit signed two's complement, default 0
• short: 2 bytes, 16-bit signed two's complement, default 0
• int: 4 bytes, 32-bit signed two's complement, default 0
• long: 8 bytes, 64-bit signed two's complement, default 0L
• float: 4 bytes, 32-bit, default 0.0f

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public class StaticMethodReference {
  
  public static void main(String[] args) {
    
    Random random = new Random();
    Set<Integer> theIntSet = new HashSet<>();
    for(int i = 0; i < 10;i++) {
      theIntSet.add(Integer.valueOf(random.nextInt(100)));
    }
        

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public class TargetTyping {
    
  public static void main(String[] args) throws IOException {
    String value = System.getProperty("user.dir");

    File f = new File(value);
        
    //without target typing
    System.out.println("Without target typing example, to find file that ends with xml");
    for(File resFile: f.listFiles((File sf) -> sf.getName().endsWith(".xml"))) {

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public class ParallelStreamExample {
  
  public static void main(String[] args) {
    
    Collection<Student> students = initStudents();
    
    students.parallelStream()
      .filter(s -> year == s.getGradYear() && s.getGrade() > 90)
      .forEach(s -> System.out.println(s));
        

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public class StreamExample {
  
  public static void main(String[] args) {
    
    Collection<Student> students = initStudents();
    students.stream()
      .filter(s -> year == s.getGradYear() && s.getGrade() > 90)
      .forEach(s -> System.out.println(s));
    }
    

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public interface Awesome {
    
  /**
   * say hello!
   */
  void sayHello();
    
  /**
   * eat something!
   * @param something thing to be eaten

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public interface Awesome {
    
    /**
     * say hello!
     */
    void sayHello();
}

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public class FindMaxLambda {

  public static void main(String[] args) {
    Set<Student> aSetOfStudent = initStudents();
    OptionalInt maxGrade = 
      aSetOfStudents
        .stream().filter(s -> 2014 == s.getGraduationYear())
                  .map(s -> s.getScore())
                  .max();