string formatter

can be used like:

formatString(CharSequence… replacements)

new StringFormatter("{}{}").formatString("123", "abc").toString(); //result is 123abc

new StringFormatter("{}{}").formatString("123").formatString("abc").toString(); //result is 123abc

new StringFormatter("{}{}").formatString("123").toString(); //result is 123{}

format(String placeholder, replacement)

new StringFormatter("{name} {age}").format("name", "Levy").format("age", 40).toString(); //result is Levy 40

format(Map replacementMap)

new StringFormatter("{name} {age}").format(map).toString(); //result is Levy 40

format(T replacement)

new StringFormatter("{name} {age}").format(student).toString(); //result is Levy 40