Java generating Strings with placeholders

Question

I\'m looking for something to achieve the following:

String s = \"hello {}!\";
s = generate(s, new Object[]{ \"world\" });
assertEquals(s, \"hello world!\");         


        

Answer 1

If you can change the format of your placeholder, you could use String.format(). If not, you could also replace it as pre-processing.

String.format("hello %s!", "world");

More information in this other thread.