src/share/classes/java/lang/Short.java

Print this page
rev 4568 : 7088952: Add "BYTES" constant to primitive wrapper classes
7088913: Add compatible static hashCode(primitive) to primitive wrapper classes
Reviewed-by: smarks


 381      * {@link java.lang.Short#toString(short)} method.
 382      *
 383      * @return  a string representation of the value of this object in
 384      *          base 10.
 385      */
 386     public String toString() {
 387         return Integer.toString((int)value);
 388     }
 389 
 390     /**
 391      * Returns a hash code for this {@code Short}; equal to the result
 392      * of invoking {@code intValue()}.
 393      *
 394      * @return a hash code value for this {@code Short}
 395      */
 396     public int hashCode() {
 397         return (int)value;
 398     }
 399 
 400     /**












 401      * Compares this object to the specified object.  The result is
 402      * {@code true} if and only if the argument is not
 403      * {@code null} and is a {@code Short} object that
 404      * contains the same {@code short} value as this object.
 405      *
 406      * @param obj       the object to compare with
 407      * @return          {@code true} if the objects are the same;
 408      *                  {@code false} otherwise.
 409      */
 410     public boolean equals(Object obj) {
 411         if (obj instanceof Short) {
 412             return value == ((Short)obj).shortValue();
 413         }
 414         return false;
 415     }
 416 
 417     /**
 418      * Compares two {@code Short} objects numerically.
 419      *
 420      * @param   anotherShort   the {@code Short} to be compared.


 438      *    Short.valueOf(x).compareTo(Short.valueOf(y))
 439      * </pre>
 440      *
 441      * @param  x the first {@code short} to compare
 442      * @param  y the second {@code short} to compare
 443      * @return the value {@code 0} if {@code x == y};
 444      *         a value less than {@code 0} if {@code x < y}; and
 445      *         a value greater than {@code 0} if {@code x > y}
 446      * @since 1.7
 447      */
 448     public static int compare(short x, short y) {
 449         return x - y;
 450     }
 451 
 452     /**
 453      * The number of bits used to represent a {@code short} value in two's
 454      * complement binary form.
 455      * @since 1.5
 456      */
 457     public static final int SIZE = 16;








 458 
 459     /**
 460      * Returns the value obtained by reversing the order of the bytes in the
 461      * two's complement representation of the specified {@code short} value.
 462      *
 463      * @return the value obtained by reversing (or, equivalently, swapping)
 464      *     the bytes in the specified {@code short} value.
 465      * @since 1.5
 466      */
 467     public static short reverseBytes(short i) {
 468         return (short) (((i & 0xFF00) >> 8) | (i << 8));
 469     }
 470 
 471     /** use serialVersionUID from JDK 1.1. for interoperability */
 472     private static final long serialVersionUID = 7515723908773894738L;
 473 }


 381      * {@link java.lang.Short#toString(short)} method.
 382      *
 383      * @return  a string representation of the value of this object in
 384      *          base&nbsp;10.
 385      */
 386     public String toString() {
 387         return Integer.toString((int)value);
 388     }
 389 
 390     /**
 391      * Returns a hash code for this {@code Short}; equal to the result
 392      * of invoking {@code intValue()}.
 393      *
 394      * @return a hash code value for this {@code Short}
 395      */
 396     public int hashCode() {
 397         return (int)value;
 398     }
 399 
 400     /**
 401      * Returns a hash code for a {@code short} value; compatible with
 402      * {@code Short.hashCode()}.
 403      *  
 404      * @since 1.8
 405      *
 406      * @return a hash code value for a {@code short} value.
 407      */
 408     public static int hashCode(short value) {
 409         return (int)value;
 410     }
 411 
 412     /**
 413      * Compares this object to the specified object.  The result is
 414      * {@code true} if and only if the argument is not
 415      * {@code null} and is a {@code Short} object that
 416      * contains the same {@code short} value as this object.
 417      *
 418      * @param obj       the object to compare with
 419      * @return          {@code true} if the objects are the same;
 420      *                  {@code false} otherwise.
 421      */
 422     public boolean equals(Object obj) {
 423         if (obj instanceof Short) {
 424             return value == ((Short)obj).shortValue();
 425         }
 426         return false;
 427     }
 428 
 429     /**
 430      * Compares two {@code Short} objects numerically.
 431      *
 432      * @param   anotherShort   the {@code Short} to be compared.


 450      *    Short.valueOf(x).compareTo(Short.valueOf(y))
 451      * </pre>
 452      *
 453      * @param  x the first {@code short} to compare
 454      * @param  y the second {@code short} to compare
 455      * @return the value {@code 0} if {@code x == y};
 456      *         a value less than {@code 0} if {@code x < y}; and
 457      *         a value greater than {@code 0} if {@code x > y}
 458      * @since 1.7
 459      */
 460     public static int compare(short x, short y) {
 461         return x - y;
 462     }
 463 
 464     /**
 465      * The number of bits used to represent a {@code short} value in two's
 466      * complement binary form.
 467      * @since 1.5
 468      */
 469     public static final int SIZE = 16;
 470 
 471     /**
 472      * The number of bytes used to represent a {@code short} value in two's
 473      * complement binary form.
 474      *
 475      * @since 1.8
 476      */
 477     public static final int BYTES = SIZE / Byte.SIZE;
 478 
 479     /**
 480      * Returns the value obtained by reversing the order of the bytes in the
 481      * two's complement representation of the specified {@code short} value.
 482      *
 483      * @return the value obtained by reversing (or, equivalently, swapping)
 484      *     the bytes in the specified {@code short} value.
 485      * @since 1.5
 486      */
 487     public static short reverseBytes(short i) {
 488         return (short) (((i & 0xFF00) >> 8) | (i << 8));
 489     }
 490 
 491     /** use serialVersionUID from JDK 1.1. for interoperability */
 492     private static final long serialVersionUID = 7515723908773894738L;
 493 }