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Which is valid declaration of a float?

float f = 1F;
float f = 1.0;
float f = "1";
float f = 1.0d;

Correct Answer: float f = 1F;

Explanation:

Option A is valid declaration of float.

Option B is incorrect because any literal number with a decimal point u declare the computer will implicitly cast to double unless you include "F or f"

Option C is incorrect because it is a String.

Option D is incorrect because "d" tells the computer it is a double so therefore you are trying to put a double value into a float variable i.e there might be a loss of precision.

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