Correct format string for String.format or similar

Question

I\'m sure I\'ve seen String.format used like this before:

String.format(\"Some {1}, {2}, {3}\", var1, var2, var3);

Does this ring

Answer 1

If you want to use empty placeholders (without positions), you could write a small utility around Message.format(), like this

    String format(String s, Object... var2) {
        int i = 0;
        while(s.contains("{}")) {
            s = s.replaceFirst(Pattern.quote("{}"), "{"+ i++ +"}");
        }
        return MessageFormat.format(s, var2);
    }

And then, can use it like,

format("Some {} {} {}", var1, var2, var3);