added some miscellaneous example

Author: hemantsonu20

src/main/java/com/github/hemantsonu20/java9/miscellaneous/DiamondOperator.java

@@ -0,0 +1,51 @@
+package com.github.hemantsonu20.java9.miscellaneous;
+
+import java.util.concurrent.Callable;
+
+public class DiamondOperator {
+
+	public static void main(String[] args) throws Exception {
+
+		java8();
+		java9();
+	}
+
+	private static void java8() throws Exception {
+
+		Callable<String> c = new Callable<String>() {
+
+			@Override
+			public String call() throws Exception {
+				return "call";
+			}
+		};
+		c.call();
+	}
+
+	/**
+	 * Java 8 threw this error with this code
+	 * 
+	 * <pre>
+	 *
+	 * Callable<String> c = new Callable<>() {
+	 *                                  ^
+	 * reason: cannot use '<>' with anonymous inner classes
+	 * where V is a type-variable:
+	 * V extends Object declared in interface Callable
+	 * 
+	 * </pre>
+	 * 
+	 * @throws Exception
+	 */
+	private static void java9() throws Exception {
+
+		Callable<String> c = new Callable<>() {
+
+			@Override
+			public String call() throws Exception {
+				return "call";
+			}
+		};
+		c.call();
+	}
+}

src/main/java/com/github/hemantsonu20/java9/miscellaneous/PrivateMethodsInInterface.java

@@ -0,0 +1,37 @@
+package com.github.hemantsonu20.java9.miscellaneous;
+
+public interface PrivateMethodsInInterface {
+
+	// java 7
+	void method1();
+
+	// java 8, default methods
+	default void method2() {
+		// default implementation if not provided in implementing classes
+		System.out.println("method2");
+	}
+
+	// java 8, static methods
+	static void method3() {
+		System.out.println("method3");
+	}
+
+	// java 9, private static methods
+	private static void method4() {
+		System.out.println("method4");
+		
+	}
+	
+	default void method4Call() {
+		method4();
+	}
+
+	// java 9, private non-static methods
+	private void method5() {
+		System.out.println("method5");
+	}
+	
+	default void method5Call() {
+		method5();
+	}
+}

src/main/java/com/github/hemantsonu20/java9/miscellaneous/TryWithResources.java

@@ -0,0 +1,37 @@
+package com.github.hemantsonu20.java9.miscellaneous;
+
+public class TryWithResources {
+
+	public static void main(String[] args) throws Exception {
+
+		java8();
+		java9();
+	}
+
+	private static void java8() throws Exception {
+
+		try (MyCloseable m1 = new MyCloseable(); MyCloseable m2 = new MyCloseable()) {
+			// try block
+		}
+	}
+
+	private static void java9() throws Exception {
+
+		// object can be instantiated outside try, even in this case, close will be
+		// called automatically
+		MyCloseable m1 = new MyCloseable();
+		MyCloseable m2 = new MyCloseable();
+		try (m1; m2) {
+			// try block
+		}
+	}
+
+	public static class MyCloseable implements AutoCloseable {
+
+		@Override
+		public void close() throws Exception {
+
+			System.out.println("close called");
+		}
+	}
+}