What is the expected output of the following code? ``python print(type(1J)) ``

Question

print(type(1J))

Options

• A<type 'dict'>
• B<type 'unicode'>
• C<type 'oat'>
• D<type 'complex'>

• A
  3% (1)
• B
  7% (2)
• C
  10% (3)
• D
  79% (23)

Explanation

In Python, the suffix J (or j) after a number creates a complex number literal - specifically the imaginary part - making 1J equivalent to the complex value 0+1j. Option D is correct because type(1J) evaluates to <class 'complex'> (shown as <type 'complex'> in Python 2 style).

Why the distractors are wrong:

• A (dict) - dictionaries are created with {} or dict(), not numeric literals.
• B (unicode) - unicode is a string type; 1J has no quotes around it.
• C (oat) - float is the floating-point type, and even then 1.0 would produce float, not oat (this choice appears to be a typo/trick).

Memory tip: Think of j as the engineering notation for the imaginary unit (mathematicians use i, engineers use j). Whenever you see a bare number ending in j or J in Python, it's always a complex number - no exceptions.

No community discussion yet for this question.