src/share/classes/java/lang/Byte.java

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*** 1,7 **** /* ! * Copyright (c) 1996, 2011, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. Oracle designates this --- 1,7 ---- /* ! * Copyright (c) 1996, 2012, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. Oracle designates this
*** 444,453 **** --- 444,484 ---- public static int compare(byte x, byte y) { return x - y; } /** + * Converts the argument to an {@code int} by an unsigned + * conversion. In an unsigned conversion to an {@code int}, the + * high-order 24 bits of the {@code int} are zero and the + * low-order 8 bits are equal to the bits of the {@code byte} argument. + * + * @return the argument converted to {@code int} by an unsigned + * conversion + * @param x the value to convert to an unsigned {@code int} + * @since 1.8 + */ + public static int toUnsignedInt(byte x) { + return ((int) x) & 0xff; + } + + /** + * Converts the argument to a {@code long} by an unsigned + * conversion. In an unsigned conversion to a {@code long}, the + * high-order 56 bits of the {@code long} are zero and the + * low-order 8 bits are equal to the bits of the {@code byte} argument. + * + * @return the argument converted to {@code long} by an unsigned + * conversion + * @param x the value to convert to an unsigned {@code long} + * @since 1.8 + */ + public static long toUnsignedLong(byte x) { + return ((long) x) & 0xffL; + } + + + /** * The number of bits used to represent a {@code byte} value in two's * complement binary form. * * @since 1.5 */