Java Integer to Hex intToHexStr(int i, int len)

Description

int To Hex Str

License

Open Source License

Parameter

Parameter	Description
i	a parameter
len	a parameter

Declaration

public static String intToHexStr(int i, int len) 

Method Source Code

//package com.java2s;

public class Main {
    /**/*from ww  w  .  j a v  a2 s. c o m*/
     * 
     * @param i
     * @param len
     * @return
     */
    public static String intToHexStr(int i, int len) {
        String h = Integer.toHexString(i);
        boolean needFill = h.length() % 2 != 0;
        int l = needFill ? (h.length() / 2 + 1) : (h.length() / 2);
        if (needFill)
            h = "0" + h;

        StringBuffer buffer = new StringBuffer();
        for (int j = 0; j < (len - l); j++) {
            buffer.append("00");
            buffer.append(" ");
        }

        for (int j = 0; j < l; j++) {
            buffer.append(substr(h, j * 2, 2));
            buffer.append(" ");
        }
        if (buffer.charAt(buffer.length() - 1) == ' ')
            buffer.deleteCharAt(buffer.length() - 1);
        return buffer.toString();
    }

    /**
     * 
     * 
     * @param src
     * @param nStart
     * @param nLen
     * @return
     */
    public static String substr(String src, int nStart, int nLen) {
        if (src == null)
            return null;

        byte[] bySrc = src.getBytes();
        byte[] byRet = new byte[nLen];
        int i, j;
        for (i = nStart, j = 0; i < bySrc.length && j < nLen; i++, j++)
            byRet[j] = bySrc[i];

        return new String(byRet, 0, j);
    }

    /**
     * @param src
     * @param nStart
     * @return
     */
    public static String substr(String src, int nStart) {
        return substr(src, nStart, src.getBytes().length);
    }
}

Related

1. intToHex8(int value)
2. intToHexBytes(int i)
3. intToHexChar(int i)
4. intToHexChars(int n)
5. intToHexLE(int val)
6. intToHexStr(int src, int len, int code)
7. IntToHexString(final int value)
8. intToHexString(int _i)
9. intToHexString(int i)