Java String Translate translate(String sequence, String match, String replacement)

Description

This method is used to translate characters in the input sequence that match the characters in the match list to the corresponding character in the replacement list.

License

Open Source License

Parameter

Parameter	Description
sequence	The input sequence to be processed
match	The list of matching characters to be searched
replacement	The list of replacement characters, positional coincident with the match list. If shorter than the match list, then the position "wraps" around on the replacement list.

Return

The translated string contents.

Declaration

public static Object translate(String sequence, String match, String replacement)

Method Source Code

//package com.java2s;

public class Main {
    /**/*from   www .  j  a  va  2s .c  o m*/
     * This method is used to translate characters in the input sequence that match the characters in the match list to
     * the corresponding character in the replacement list. If the replacement list is shorter than the match list, then
     * the character from the replacement list is taken as the modulo of the match character position and the length of
     * the replacement list.
     * 
     * @param sequence
     *            The input sequence to be processed
     * @param match
     *            The list of matching characters to be searched
     * @param replacement
     *            The list of replacement characters, positional coincident with the match list. If shorter than the
     *            match list, then the position "wraps" around on the replacement list.
     * @return The translated string contents.
     */
    public static Object translate(String sequence, String match, String replacement) {

        if (sequence == null) {
            return sequence;
        }

        StringBuffer buffer = new StringBuffer(sequence);

        for (int index = 0; index < buffer.length(); index++) {
            char ch = buffer.charAt(index);

            int position = match.indexOf(ch);
            if (position == -1) {
                continue;
            }

            if (position >= replacement.length()) {
                position %= replacement.length();
            }
            buffer.setCharAt(index, replacement.charAt(position));
        }

        return buffer.toString();
    }
}