13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25 package java.util.function;
26
27 /**
28 * An operation on a single {@code double} operand yielding a {@code double}
29 * result.
30 *
31 * @since 1.8
32 */
33 public interface DoubleUnaryOperator {
34
35 /**
36 * Returns the {@code double} result of the operation upon the
37 * {@code double} operand.
38 *
39 * @param operand the operand value
40 * @return the operation result value
41 */
42 public double operateAsDouble(double operand);
43 }
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13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25 package java.util.function;
26
27 /**
28 * An operation on a single {@code double} operand yielding a {@code double}
29 * result.
30 *
31 * @since 1.8
32 */
33 public interface DoubleUnaryOperator extends UnaryOperator<Double> {
34
35 @Override
36 public default Double operate(Double operand) { return operateAsDouble((double) operand); }
37
38 /**
39 * Returns the {@code double} result of the operation upon the
40 * {@code double} operand.
41 *
42 * @param operand the operand value
43 * @return the operation result value
44 */
45 public double operateAsDouble(double operand);
46 }
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