Stick a number and then a dollar sign ($) immediately after the % sign to set the order : 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 %2$b? %1$f", Math.PI, true);
        System.out.println(sb);

    }
}

Would you like some true? 3.141593