public class TranslateChar {
/** @param args */
public static void main(final String[] args) {
final Map<Character, Character> mapCharCod = new HashMap<>(36);
final Map<Character, Character> mapCharDecod = new HashMap<>(36);
mapCharCod.put('A', 'Z');
mapCharCod.put('B', 'X');
mapCharCod.put('C', 'Y');
mapCharDecod.put('Z', 'A');
mapCharDecod.put('X', 'B');
mapCharDecod.put('Y', 'C');
final String toCod = "CAB";
StringBuilder sb = new StringBuilder("{");
for (final char c : toCod.toCharArray()) {
sb.append(mapCharCod.get(c));
sb.append(',');
}
sb.setCharAt(sb.length() - 1, '}');
System.out.println(sb.toString());
final String deCod = "{Y,Z,X}";
sb = new StringBuilder();
for (final char c : deCod.toCharArray()) {
if (c == '{' || c == ',' || c == '}') {
continue;
}
sb.append(mapCharDecod.get(c));
}
System.out.println(sb.toString());
}
}
Output :
{Y,Z,X}
CAB
2
solved How to replace several characters on a single string to desired characters (java)?