| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package java.lang; |
| |
| |
| /** |
| * The abstract superclass of the classes which represent numeric base types |
| * (that is {@link Byte}, {@link Short}, {@link Integer}, {@link Long}, |
| * {@link Float}, and {@link Double}. |
| */ |
| public abstract class Number implements java.io.Serializable { |
| |
| private static final long serialVersionUID = -8742448824652078965L; |
| |
| /** |
| * Empty default constructor. |
| */ |
| public Number() { |
| } |
| |
| /** |
| * Returns this object's value as a byte. Might involve rounding and/or |
| * truncating the value, so it fits into a byte. |
| * |
| * @return the primitive byte value of this object. |
| */ |
| public byte byteValue() { |
| return (byte) intValue(); |
| } |
| |
| /** |
| * Returns this object's value as a double. Might involve rounding. |
| * |
| * @return the primitive double value of this object. |
| */ |
| public abstract double doubleValue(); |
| |
| /** |
| * Returns this object's value as a float. Might involve rounding. |
| * |
| * @return the primitive float value of this object. |
| */ |
| public abstract float floatValue(); |
| |
| /** |
| * Returns this object's value as an int. Might involve rounding and/or |
| * truncating the value, so it fits into an int. |
| * |
| * @return the primitive int value of this object. |
| */ |
| public abstract int intValue(); |
| |
| /** |
| * Returns this object's value as a long. Might involve rounding and/or |
| * truncating the value, so it fits into a long. |
| * |
| * @return the primitive long value of this object. |
| */ |
| public abstract long longValue(); |
| |
| /** |
| * Returns this object's value as a short. Might involve rounding and/or |
| * truncating the value, so it fits into a short. |
| * |
| * @return the primitive short value of this object. |
| */ |
| public short shortValue() { |
| return (short) intValue(); |
| } |
| } |