diff --git a/src/main/java/io/javabrains/Greeter.java b/src/main/java/io/javabrains/Greeter.java
new file mode 100644
index 000000000..ed3fb4758
--- /dev/null
+++ b/src/main/java/io/javabrains/Greeter.java
@@ -0,0 +1,17 @@
+package io.javabrains;
+
+public class Greeter {
+	public void greet(Greeting greeting) {
+		greeting.perform();
+	}
+	
+	public static void main(String[] args) {
+		Greeter greeter = new Greeter();
+		HelloWorldGreetings helloWorldGreeting = new HelloWorldGreetings();
+		 greeter.greet(helloWorldGreeting);
+		 
+		 Greeting myLambdaFunction = ()-> System.out.print("HelloWorld");
+	}
+
+}
+
diff --git a/src/main/java/io/javabrains/Greeting.java b/src/main/java/io/javabrains/Greeting.java
new file mode 100644
index 000000000..c11d9b257
--- /dev/null
+++ b/src/main/java/io/javabrains/Greeting.java
@@ -0,0 +1,5 @@
+package io.javabrains;
+
+public interface Greeting {
+	public void perform();
+}
diff --git a/src/main/java/io/javabrains/HelloWorldGreetings.java b/src/main/java/io/javabrains/HelloWorldGreetings.java
new file mode 100644
index 000000000..00c438f84
--- /dev/null
+++ b/src/main/java/io/javabrains/HelloWorldGreetings.java
@@ -0,0 +1,10 @@
+package io.javabrains;
+
+public class HelloWorldGreetings implements Greeting {
+
+	@Override
+	public void perform() {
+		System.out.print("HelloWorld!");
+	}
+
+}
diff --git a/src/main/java/io/javabrains/TypeInferenceExample.java b/src/main/java/io/javabrains/TypeInferenceExample.java
new file mode 100644
index 000000000..ba997f534
--- /dev/null
+++ b/src/main/java/io/javabrains/TypeInferenceExample.java
@@ -0,0 +1,16 @@
+package io.javabrains;
+
+public class TypeInferenceExample {
+
+	public static void main(String[] args) {
+		StringLengthLambda myLambda = s -> s.length();
+		System.out.print(myLambda.getLength("Hello Lambda!")); 
+	}
+	
+	
+	interface StringLengthLambda{
+		int getLength(String s);
+		}
+	}
+
+