Java Formatter Usage toHexString(final byte[] data)

Description

Converts the given byte array to hex string

License

Apache License

Parameter

Parameter	Description
data	the byte array to be converted to hex string (which cannot be null )

Exception

Parameter	Description
NullPointerException	if the given byte array is null

Return

the converted hex string

Declaration

public static String toHexString(final byte[] data) throws NullPointerException 

Method Source Code

//package com.java2s;
/*/* w w w .j a  va2  s  .  c  o  m*/
 * #%L
 * JavaCreed Secure Properties Encoder
 * %%
 * Copyright (C) 2012 - 2015 Java Creed
 * %%
 * Licensed 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.
 * #L%
 */

import java.util.Formatter;

public class Main {
    /**
     * Converts the given byte array to hex string
     *
     * @param data
     *          the byte array to be converted to hex string (which cannot be {@code null})
     * @return the converted hex string
     * @throws NullPointerException
     *           if the given byte array is {@code null}
     */
    public static String toHexString(final byte[] data) throws NullPointerException {
        try (Formatter formatter = new Formatter()) {
            for (final byte b : data) {
                formatter.format("%02x", b);
            }
            return formatter.toString();
        }
    }
}

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3. numberWithLeadingZeroes(int n, int totalChars)
4. showVxlanHeaderOutput()
5. substitution(Formatter formatter, int flags, int width, int precision, StringBuilder obj)
6. toReadableSize(long bytes)
7. toTwoDigit(double f)
8. toUUIDFormat(byte[] bytes)
9. validateCondition(boolean condition, String messageFormat, Object... messageArgs)