java - evaluating variable int/string -

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  int x = 20; Double d = 3.1416; String s = "h";   
 These are my variables and I have to evaluate the next rows.  
  d / x + "";   
 is evaluating the double variable type (0.15708), is that correct?   
 
 
 If you do not have that pesky  ""  !  
 Finally add  ""  to something like this in a  string  it can actually be an easy shortcut -  String.valueOf Instead of using something like () , you can do that  4/2 + "" , which makes it in a string.  
 Repeat,  
  d / x  will be a  double , because you are adding a floating point  < P> but a  double + "" = string .  
 I hope that helps. Good luck :)

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