Main.java Source code

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Here is the source code for Main.java

Source

/*
 *  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. 
 *  
 */

/**
 * Various string manipulation methods that are more efficient then chaining
 * string operations: all is done in the same buffer without creating a bunch of
 * string objects.
 * 
 * @author <a href="mailto:dev@labs.apache.org">Dungeon Project</a>
 */
public class Main {
    /**
     * Gets a hex string from byte array.
     * 
     * @param res
     *            the byte array
     * @return the hex string representing the binary values in the array
     */
    public static final String toHexString(byte[] res) {
        StringBuffer buf = new StringBuffer(res.length << 1);

        for (int ii = 0; ii < res.length; ii++) {
            String digit = Integer.toHexString(0xFF & res[ii]);

            if (digit.length() == 1) {
                digit = '0' + digit;
            }

            buf.append(digit);
        }
        return buf.toString().toUpperCase();
    }

}