Java: replace a set of characters with other different characters

Question

I am supposed to make a custom decorator so I can replace both in an input from console and from a file:

1. A set of chars with a specific character (e.g. char[

Answer 1

Here you have, this work 100% right for any example ....

public static void main(String[] args) {
        String test = "My name is Baba";

        Character[] x = { 'a', 'b' };

        StringBuilder sb = new StringBuilder();
        sb.append("(");
        for (int i = 0; i < x.length; i++) {
            if (i == (x.length - 1)) {
                sb.append(x[i] + ")");
            } else {
                sb.append(x[i] + "|");
            }
        }

        System.out.println(sb.toString());

        Character y = 'c';
        Character[] y1 = { 'd', 'e' };

        if (y.getClass().isArray()) {
            for (int i = 0; i < y1.length; i++) {
                test = test.replaceAll(x[i].toString(), y1[i].toString());
            }
        } else {
            test = test.replaceAll(sb.toString(), String.valueOf(y.toString()));
        }

        System.out.println(test);
    }