printTextPerRoles

public static String printTextPerRole(String[] roles, String[] textLines) {
    StringBuilder sb = new StringBuilder();
    for (String role : roles) {
        sb.append(role + ":\n");
        for (int i = 0; i < textLines.length; i++) {
            if (textLines[i].startsWith(role + ":")) {
                sb.append((i + 1) + ")" + textLines[i].substring(role.length() + 1) + "\n");
            }
        }
        sb.append("\n");
    }
    return sb.toString();
}