Language Fundamentals

Q1: Which is a valid declarations of a String?

A String s2 = 'null';

B String s4 = (String) '\ufeed';

C String s1 = null;

D String s3 = (String) 'abc';

ANS:A - String s1 = null;

Option A sets the String reference to null. Option B is wrong because null cannot be in single quotes. Option C is wrong because there are multiple characters between the single quotes ('abc'). Option D is wrong because you can't cast a char (primitive) to a String (object).

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