Android Hex String Create toHex(final int i)

Description

to Hex

License

Apache License

Declaration

public static String toHex(final int i) 

Method Source Code

//package com.java2s;
/*/*from  w ww .  j a v a  2s  . c  o m*/
 * Copyright 2004-2011 the Seasar Foundation and the Others.
 *
 * 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.
 */

public class Main {

    public static String toHex(final byte[] bytes) {
        if (bytes == null) {
            return "";
        }
        StringBuffer sb = new StringBuffer(bytes.length * 2);
        for (int i = 0; i < bytes.length; ++i) {
            appendHex(sb, bytes[i]);
        }
        return sb.toString();
    }

    public static String toHex(final int i) {
        StringBuffer buf = new StringBuffer();
        appendHex(buf, i);
        return buf.toString();
    }

    public static void appendHex(final StringBuffer buf, final byte i) {
        buf.append(Character.forDigit((i & 0xf0) >> 4, 16));
        buf.append(Character.forDigit((i & 0x0f), 16));
    }

    public static void appendHex(final StringBuffer buf, final int i) {
        buf.append(Integer.toHexString((i >> 24) & 0xff));
        buf.append(Integer.toHexString((i >> 16) & 0xff));
        buf.append(Integer.toHexString((i >> 8) & 0xff));
        buf.append(Integer.toHexString(i & 0xff));
    }
}

Related

1. isHexChar(String hexString, boolean checkSpaceFlag)
2. isHexChar(String hexString)
3. toHexChar(int nibble)
4. appendHex(final StringBuffer buf, final byte i)
5. appendHex(final StringBuffer buf, final int i)
6. appendHexJavaScriptRepresentation(int codePoint, Appendable out)
7. appendHexJavaScriptRepresentation(StringBuilder sb, char c)
8. bytesToHexString(byte[] bArray)
9. makeHex(int val)