Getting smallest possible Double value

[Java Tip]

ChoiceFormat class can be used to get smallest possible Double value.

	    	 double d = 1.2;
	    	 double d1 = ChoiceFormat.previousDouble(d);
	    	 double d2 = ChoiceFormat.nextDouble(d);
	    	 System.out.println(d1);
	    	 System.out.println(d2);

Output:

1.1999999999999997
1.2000000000000002