Ported and added "tutorial_1.py" from Python Examples

Added MalmoJava DLL and Jar
Added compiled Tutorials jar - read README.MD for information on how to use
Updated README.md to provide a little bit of information on how to use

Author: Techdaan

MalmoJava.dll

@@ -1,2 +1,13 @@
 ## Malmo Java Examples
 Aims to port all Python examples to Java to provide more examples to people who wish to use Malmo with Java.
+
+#How to use
+In order to execute one of these tutorials you should run the following in the command line:
+````
+java -cp MalmoJavaJar.jar;Tutorials.jar -DJava.library.path=. TUTORIAL
+````
+Example: If I wanted to run "Tutorial1" I'd enter the following command in the command line:
+````
+java -cp MalmoJavaJar.jar;Tutorials.jar -DJava.library.path=. Tutorial1
+````
+The tutorial name has to correspond the class name.

MalmoJavaJar.jar

@@ -0,0 +1,98 @@
+import com.microsoft.msr.malmo.*;
+
+import static java.lang.System.loadLibrary;
+
+/**
+ * A Java translation of the Python "tutorial_1" example for the Malmo platform made by Microsoft
+ */
+public class Tutorial1 {
+
+    static {
+        loadLibrary("MalmoJava"); // Load the Malmo JNI
+    }
+
+    public static void main(String[] argv) {
+        AgentHost agentHost = new AgentHost();
+        try {
+            StringVector args = new StringVector();
+            args.add("Tutorial1");
+            for(String arg: argv)
+                args.add(arg);
+        } catch(Exception e) {
+            System.out.format("ERROR: %s", e.getMessage());
+            System.out.println(agentHost.getUsage());
+        }
+        if(agentHost.receivedArgument("help")) {
+            System.out.println(agentHost.getUsage());
+            System.exit(0);
+        }
+
+        MissionSpec missionSpec = new MissionSpec();                                        // Initialize our mission
+        MissionRecordSpec missionRecordSpec = new MissionRecordSpec("./saved_data.tgz");    // Initialize where we want to store our mission logs
+
+        // Try to start the mission
+        int maxRetries = 3;                 // How many times will we try to start our mission
+        for(int i=0; i<maxRetries; i++) {
+            try {
+                // Start the mission - hope it doesn't throw an exception
+                agentHost.startMission(missionSpec, missionRecordSpec);
+                break;
+            } catch(Exception e) {
+                // Failed to start the mission since an exception was thrown.
+                if(i == maxRetries - 1) {   // Failed to start the mission as many times as we defined in "maxRetries"
+                    System.out.format("ERROR: %s", e.getMessage());
+                    System.out.format("Couldn't start the mission after trying %d times. Exiting mission.", maxRetries);
+                    System.exit(1);
+                }
+
+                System.out.format("Failed to start the mission after %d/%d attempts. Retrying in 2 seconds.", i+1, maxRetries);
+                try {
+                    Thread.sleep(2000);
+                } catch(InterruptedException e2) {
+                    System.out.format("ERROR: %s", e2.getMessage());
+                    System.out.println("Couldn't sleep the thread for two seconds");
+                }
+            }
+        }
+
+        // Wait for the mission to start
+        WorldState worldState = agentHost.getWorldState();
+        while(!worldState.getHasMissionBegun()) {   // Wait for the mission to begin
+            System.out.print(".");
+            try {
+                Thread.sleep(100);
+            } catch(InterruptedException e) {
+                System.out.format("ERROR: %s", e.getMessage());
+                System.out.println("Couldn't sleep the thread for 0.1 second while waiting for the mission to begin");
+            }
+
+            worldState = agentHost.getWorldState();
+            for(int i=0; i<worldState.getErrors().size(); i++) {
+                System.out.format("ERROR: "+worldState.getErrors().get(i));
+            }
+        }
+
+        // Log that the mission started
+        System.out.println("\nMission started");
+
+        // Do something. In our case, we do nothing for 10 seconds.
+        while(worldState.getIsMissionRunning()) {
+            System.out.print(".");
+
+            try {
+                Thread.sleep(100);
+            } catch(InterruptedException e) {
+                System.out.format("ERROR: %s", e.getMessage());
+                System.out.println("Couldn't sleep the thread for 0.1 second while the mission's executing");
+            }
+
+            worldState = agentHost.getWorldState();
+            for(int i=0; i<worldState.getErrors().size(); i++) {
+                System.out.format("ERROR: "+worldState.getErrors().get(i));
+            }
+        }
+
+        System.out.println("\n\nMission has ended.");
+    }
+
+}