By default, arguments are formatted in their order of appearance in Formatter. : Formatter « Utility Classes « SCJP

1. SCJP
2. Utility Classes
3. Formatter

import java.util.Formatter;
public class MainClass{
    public static void main(String[] argv){
        StringBuilder sb = new StringBuilder();
        Formatter f = new Formatter(sb);
        boolean b = false;
        f.format("Would you like some %f? %b", Math.PI, true);
        System.out.println(sb);

    }
}

Would you like some 3.141593? true