Java Programming - Java.lang Class - Discussion
Discussion Forum : Java.lang Class - Finding the output (Q.No. 17)
17.
What will be the output of the program?
System.out.println(Math.sqrt(-4D));
Answer: Option
Explanation:
It is not possible in regular mathematics to get a value for the square-root of a negative number therefore a NaN will be returned because the code is valid.
Discussion:
5 comments Page 1 of 1.
JBxquu said:
1 decade ago
NaN stands for "Not a Number". Math.sqrt() function can only handle positive numbers, and square root of negative numbers is not defined (its a complex number and Java doesn't provide much support for complex numbers) , so it prints NaN.
(1)
Ranjitha said:
8 years ago
Thank you @Jbxquu.
Pramit said:
7 years ago
What is D here?
Mani said:
1 decade ago
How NaN comes?
Sudharsan said:
1 decade ago
What is NAN?
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