src/share/classes/java/util/function/UnaryOperator.java

rev 6273 : 8004561: Additional functional interfaces, extension methods and name changes
Summary: Adds additional functional interfaces for primitives and "Bi" (two operand). Adds utility extension methods. Includes some name changes for existing functional interfaces per EG decisions.
Reviewed-by: briangoetz

@@ -30,15 +30,7 @@
  *
  * @param <T> the type of operand to {@code operate} and of the result
  *
  * @since 1.8
  */
-public interface UnaryOperator<T> {
-
-    /**
-     * Returns the result of the operation upon the operand.
-     *
-     * @param operand the operand
-     * @return the operation result
-     */
-    public T operate(T operand);
+public interface UnaryOperator<T> extends Function<T, T> {
 }