Add helloworld sample

.classpath

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+<?xml version="1.0" encoding="UTF-8"?>
+<classpath>
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.8"/>
+	<classpathentry kind="src" path="src"/>
+	<classpathentry kind="lib" path="lib/intersystems-jdbc-3.0.0.jar"/>
+	<classpathentry kind="output" path="bin"/>
+</classpath>

.project

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+<?xml version="1.0" encoding="UTF-8"?>
+<projectDescription>
+	<name>samples-java-helloworld</name>
+	<comment></comment>
+	<projects>
+	</projects>
+	<buildSpec>
+		<buildCommand>
+			<name>org.eclipse.jdt.core.javabuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+	</buildSpec>
+	<natures>
+		<nature>org.eclipse.jdt.core.javanature</nature>
+	</natures>
+</projectDescription>

.settings/org.eclipse.jdt.core.prefs

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+eclipse.preferences.version=1
+org.eclipse.jdt.core.compiler.codegen.inlineJsrBytecode=enabled
+org.eclipse.jdt.core.compiler.codegen.targetPlatform=1.8
+org.eclipse.jdt.core.compiler.codegen.unusedLocal=preserve
+org.eclipse.jdt.core.compiler.compliance=1.8
+org.eclipse.jdt.core.compiler.debug.lineNumber=generate
+org.eclipse.jdt.core.compiler.debug.localVariable=generate
+org.eclipse.jdt.core.compiler.debug.sourceFile=generate
+org.eclipse.jdt.core.compiler.problem.assertIdentifier=error
+org.eclipse.jdt.core.compiler.problem.enumIdentifier=error
+org.eclipse.jdt.core.compiler.source=1.8

src/demo/HelloWorld.java

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+/*
+* PURPOSE: Makes a connection to an instance of InterSystems IRIS Data Platform.
+*/
+package demo;
+
+import java.sql.Connection;
+import java.sql.SQLException;
+
+import com.intersystems.jdbc.IRISDataSource;
+
+public class HelloWorld {
+
+	public static void main(String[] args) {
+		String ip = "localhost";
+		int port = 51773;
+		String namespace = "USER";
+		String username = "SuperUser";
+		String password = "SYS";
+		try {
+			// Using IRISDataSource to connect
+			IRISDataSource ds = new IRISDataSource();
+
+			// Create connection string
+			String dbUrl = "jdbc:IRIS://" + ip + ":" + port + "/" + namespace;
+			ds.setURL(dbUrl);
+			ds.setUser(username);
+			ds.setPassword(password);
+
+			// Making connection
+			Connection dbconnection = ds.getConnection();
+			System.out.println("Hello World! You have successfully connected to InterSystems IRIS via JDBC.");
+    		dbconnection.close();
+				
+		}
+		catch ( SQLException e) 
+		{ 
+			System.out.println(e.getMessage());
+		} 
+	}
+
+}
+
+