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Java.lang Class - Programming

Q1:

Which of the following are valid calls to Math.max?
  1. Math.max(1,4)
  2. Math.max(2.3, 5)
  3. Math.max(1, 3, 5, 7)
  4. Math.max(-1.5, -2.8f)

A 1, 2 and 4

B 2, 3 and 4

C 1, 2 and 3

D 3 and 4

ANS:A - 1, 2 and 4

(1), (2), and (4) are correct. The max() method is overloaded to take two arguments of type int, long, float, or double. (3) is incorrect because the max() method only takes two arguments.