Discussion :: Language Fundamentals
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Which is a valid declarations of a String?
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A.
String s1 = null;
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B.
String s2 = 'null';
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C.
String s3 = (String) 'abc';
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D.
String s4 = (String) '\ufeed';
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Answer : Option A
Explanation :
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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