Java Hex Convert To fromHex(char c)

Description

Translates a hex char into an int.

License

Apache License

Parameter

Parameter	Description
c	a hex char (0-9, A-F, a-f).

Return

an int (0-15).

Declaration

public static int fromHex(char c) 

Method Source Code

//package com.java2s;
/* $Id: StringUtil.java 743147 2009-02-10 22:53:01Z sccomer $
 *
 * 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.//  w  w  w.j  av  a  2 s. c o m
 */

public class Main {
    /**
     * Translates a hex char into an int.
     * @param c a hex char (0-9, A-F, a-f).
     * @return an int (0-15).
     */
    public static int fromHex(char c) {
        if (c >= '0' && c <= '9')
            return c - '0';
        if (c >= 'A' && c <= 'F')
            return c - 'a' + 10;
        if (c >= 'a' && c <= 'f')
            return c - 'a' + 10;
        throw new IllegalArgumentException("bad hex char " + c);
    }
}

Related

1. convertHexTime2Binary(String timespan)
2. convertHextoASCII(String text)
3. convertHexToChar(String hex)
4. convertHexToFloat(long hexValue)
5. fromHex(byte[] hex)
6. fromHex(char c)
7. fromHex(char hi, char lo)
8. fromHex(CharSequence cs)
9. fromHex(final CharSequence s)