Data update

Task/Pragmatic-directives/Java/pragmatic-directives.java

@@ -0,0 +1,35 @@
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
+
+public final class PragmaticDirectives {
+	
+	public static void main(String[] aArgs) {		
+		/* Take no action */
+	}
+	
+	@FunctionalInterface
+	public interface Adder {   			 // This annotation indicates a functional interface,
+	    abstract int add(int a, int b);  // which has exactly one abstract method.
+	}
+	
+	@Deprecated
+    public void Display() {
+        System.out.println("This author is indicating that this method is deprecated");
+    }
+	
+	@SuppressWarnings("unchecked")
+	public void uncheckedWarning() {
+	    List words = new ArrayList();
+	    words.add("hello");
+	    System.out.println("THe compiler is warning that the generic type declaration is missing.");
+	    System.out.println("The correct syntax is: List<String> words = new ArrayList<String>()");
+	}
+	
+	@SafeVarargs
+	public static <T> List<T> list(final T... items) {
+		System.out.println("This annotation suppresses unchecked warnings about a non-reifiable variable arity type");
+	    return Arrays.asList(items);
+	}
+	
+}