Can we rely on String.isEmpty for checking null condition on a String in Java?

Question

I am passing an accountid as input from an XML file as shown, which will be parsed later and will be used in our code:

123456         


        

Answer 1

String s1=""; // empty string assigned to s1 , s1 has length 0, it holds a value of no length string

String s2=null; // absolutely nothing, it holds no value, you are not assigning any value to s2

so null is not the same as empty.

hope that helps!!!