Which is a valid declarations of a String?-A-String s1 = null;B-String s2 = 'null';C-String s3 = (String) 'abc';D-String s4 = (String) 'ﻭ';-A-String s1 = null;

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Which is a valid declarations of a String?-A-String s1 = null;B-String s2 = &#39;null&#39;;C-String s3 = (String) &#39;abc&#39;;D-String s4 = (String) &#39;ﻭ&#39;;-A-String s1 = null;

APTITUDE CRACK · Accepted Answer

The correct option is  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 (&#39;abc&#39;). Option D is wrong because you can&#39;t cast a char (primitive) to a String (object).

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Q1: Which is a valid declarations of a String?

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Q1: Which is a valid declarations of a String?

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