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Operators and Assignments

Q1:
Which of the following are legal lines of code?
  1. int w = (int)888.8;
  2. byte x = (byte)1000L;
  3. long y = (byte)100;
  4. byte z = (byte)100L;

A 1 and 2

B 2 and 3

C 3 and 4

D All statements are correct.

ANS:D - All statements are correct.

Statements (1), (2), (3), and (4) are correct. (1) is correct because when a floating-point number (a double in this case) is cast to an int, it simply loses the digits after the decimal. (2) and (4) are correct because a long can be cast into a byte. If the long is over 127, it loses its most significant (leftmost) bits. (3) actually works, even though a cast is not necessary, because a long can store a byte.



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