Final answer:
Entering the number '1' gives you an integer, and entering '1L' gives you a long integer. The provided options do not include this correct pairing, but the concept remains that '1' defaults to integer and '1L' is explicitly a long integer.
Step-by-step explanation:
When you enter 1 in a programming context, you typically get an integer, whereas entering 1L explicitly gives you a long integer (often referred to simply as a long).
This is because the 'L' suffix signifies that the literal should be treated as a long data type. Based on the given options, the correct answer is:
A) Float, long.
B) Integer, double.
C) Double, integer.
D) Long, float.
Since entering '1' without any suffix defaults to an integer and appending 'L' represents a long integer, the correct answer is that entering 1 gives you an integer while entering 1L explicitly gives you a long.
Therefore, option B) is not appropriate since it suggests that '1' gives an integer and '1L' suggests a double, which is inaccurate.
The best answer from the provided choices is not explicitly stated, but logically it should be 'Entering 1 gives you an integer while entering 1L explicitly gives you a long'.