Mega Code Archive
Converting hexadecimal strings
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/*
* 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.
*/
/* $Id$ */
/**
* Provides helper functions for converting hexadecimal strings.
*/
public class HexUtil {
private static final char[] DIGITS =
{'0', '1', '2', '3', '4', '5', '6', '7',
'8', '9', 'A', 'B', 'C', 'D', 'E', 'F'};
/**
* Converts a byte array to a hexadecimal String
* @param data the data to encode
* @return String the resulting String
*/
public static final String toHex(byte[] data) {
final StringBuffer sb = new StringBuffer(data.length * 2);
for (int i = 0; i < data.length; i++) {
sb.append(DIGITS[(data[i] >>> 4) & 0x0F]);
sb.append(DIGITS[data[i] & 0x0F]);
}
return sb.toString();
}
}
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