Question

Predict the return data types of the following:

(i) int p; double q;

r = p + q;

System.out.println(r);

(ii) float m;

p = m/3*(Math.pow(4,3));

System.out.println(p);​

Answer 1

Answer:

1) double and 2) error

Explanation:

1) the compiler will implicitly convert int to double

2) Math.pow() function returns a double and float + double is a double but since p is an int the compiler will return an exception "possible loss of precision".