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System.out.printf("45%2$b%3$+04d",978,654,321,111);
i am not that much clear of formatting can you explain this 2 argument
%2$b

in which we have b which is boolean
and our argument is 654 on which it us giving true can you explain this?
 
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From the Java API spec:

If the argument arg is null, then the result is "false". If arg is a boolean or Boolean, then the result is the string returned by String.valueOf(). Otherwise, the result is "true".

 
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b or B -> will return false for anything that is null or false (boolean or Boolean)
For everything else It returns true e.g. 978, 654, abc, sdf, etc. etc.
 
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vineet please Quote Your Sources when you post a question...
 
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