What is the output of printf?

[Henry Zhi Lin]

This is from exam lab,

  System.out.printf("12%1$s","13%1$s","14%1$s");  

what is the output of this, and could you explain it?

[Henry Wong]

This is from exam lab,

BTW, what is "exam lab"? Please provide more detail on this source.

Henry

[Jesper de Jong]

Did you try compiling and running it in a small test program? What is the output? Can you explain it yourself? Have a look at the API documentation for the printf() method in java.io.PrintStream for information on how printf() works.

[Henry Zhi Lin]

Originally posted by Henry Wong:



BTW, what is "exam lab"? Please provide more detail on this source.

Henry

This is from the new SCJP simulator which I download from www.examlab.tk

[Henry Zhi Lin]

Originally posted by Jesper Young:
Did you try compiling and running it in a small test program? What is the output? Can you explain it yourself? Have a look at the API documentation for the printf() method in java.io.PrintStream for information on how printf() works.

Sorry, I may just want a quick answer from someone, in fact whenI looked the http://java.sun.com/j2se/1.5.0/docs/api/java/util/Formatter.html page, I do understand why and how to get the output.

Thanks for your not so easy answer!