How can I replace the curly braces with a real value inside a JSON string?

Question

Java

I am developing an Android project. In development I use Retrofit, Gson, RxJava.
For example, I can get such a response from the server and I have to replace curly braces with real values.
{
"text": "Hello {0} World {1} This is {2} test text"
}

Answer 1

String.replace()

Answer 2

You can't ask the server to return a string like this:
{
"text": "Hello %s World %s This is %s test text"
}
Then you can use String.format()