src/share/classes/java/lang/Boolean.java

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   1 /*
   2  * Copyright (c) 1994, 2011, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  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


 188     public String toString() {
 189         return value ? "true" : "false";
 190     }
 191 
 192     /**
 193      * Returns a hash code for this {@code Boolean} object.
 194      *
 195      * @return  the integer {@code 1231} if this object represents
 196      * {@code true}; returns the integer {@code 1237} if this
 197      * object represents {@code false}.
 198      */
 199     @Override
 200     public int hashCode() {
 201         return Boolean.hashCode(value);
 202     }
 203 
 204     /**
 205      * Returns a hash code for a {@code boolean} value; compatible with
 206      * {@code Boolean.hashCode()}.
 207      *
 208      * @since 1.8
 209      *
 210      * @return a hash code value for a {@code boolean} value.

 211      */
 212     public static int hashCode(boolean value) {
 213         return value ? 1231 : 1237;
 214     }
 215 
 216    /**
 217      * Returns {@code true} if and only if the argument is not
 218      * {@code null} and is a {@code Boolean} object that
 219      * represents the same {@code boolean} value as this object.
 220      *
 221      * @param   obj   the object to compare with.
 222      * @return  {@code true} if the Boolean objects represent the
 223      *          same value; {@code false} otherwise.
 224      */
 225     public boolean equals(Object obj) {
 226         if (obj instanceof Boolean) {
 227             return value == ((Boolean)obj).booleanValue();
 228         }
 229         return false;
 230     }


   1 /*
   2  * Copyright (c) 1994, 2013, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  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


 188     public String toString() {
 189         return value ? "true" : "false";
 190     }
 191 
 192     /**
 193      * Returns a hash code for this {@code Boolean} object.
 194      *
 195      * @return  the integer {@code 1231} if this object represents
 196      * {@code true}; returns the integer {@code 1237} if this
 197      * object represents {@code false}.
 198      */
 199     @Override
 200     public int hashCode() {
 201         return Boolean.hashCode(value);
 202     }
 203 
 204     /**
 205      * Returns a hash code for a {@code boolean} value; compatible with
 206      * {@code Boolean.hashCode()}.
 207      *
 208      * @param value the value to hash

 209      * @return a hash code value for a {@code boolean} value.
 210      * @since 1.8
 211      */
 212     public static int hashCode(boolean value) {
 213         return value ? 1231 : 1237;
 214     }
 215 
 216    /**
 217      * Returns {@code true} if and only if the argument is not
 218      * {@code null} and is a {@code Boolean} object that
 219      * represents the same {@code boolean} value as this object.
 220      *
 221      * @param   obj   the object to compare with.
 222      * @return  {@code true} if the Boolean objects represent the
 223      *          same value; {@code false} otherwise.
 224      */
 225     public boolean equals(Object obj) {
 226         if (obj instanceof Boolean) {
 227             return value == ((Boolean)obj).booleanValue();
 228         }
 229         return false;
 230     }