Unicorn solution http://zeroturnaround.com/fun/magical-java-puzzle-pat-the-unicorns/

.gitignore

*.class
*~
.project

README.md

This is my solution to the puzzle described here: http://zeroturnaround.com/fun/magical-java-puzzle-pat-the-unicorns/

build.xml

<project default="compile" basedir=".">

    <property name="build.src" value="."/>
    <property name="build.out" value="."/>

	<target name="clean">
        <delete>
            <fileset dir="." includes="*.class"/>
        </delete>
    </target>

	<target name="compile">
        <javac srcdir="${build.src}" destdir="${build.out}" includeantruntime="false" />
    </target>

	<target name="run" depends="compile">
		<java classpath="." className="MagicalLand" />
	</target>

</project>

MagicalLand.java

public class MagicalLand {
  public static void main(String[] args) {
    for (int i = 0; i < (Math.random() * 500) + 2; i++) {
      if (Unicorn.pat()) {
        System.out.println("UNICORN #1: PAT THIS UNICORN ONCE");
      }
    }
 
    for (int i = 0; i < (Math.random() * 500) + 2; i++) {
      if (Unicorn.pat()) {
        System.out.println("UNICORN #2: PAT THIS UNICORN ONCE");
      }
    }
    System.out.println("END OF PROGRAM");
  }
}

Math.java

public class Math {

  public static double random() {
    return (double) -1 / (double) 500;
  }

}

Unicorn.java

public class Unicorn {

  static boolean pat() {
    return true;
  }
}