Enthuware

"Note that if you do not have printSum(int, int) method and if you try to call printSum(1, 2) , printSum(float, float) would be invoked instead of printSum(double, double) because a float is more specific (or closer) to an int than double is."

Isn't being called instead of with ?

Yes, between printSum(int a, float b) and printSum(float a, float b), printSum(int a, float b) is more specific.

Between printSum(float a, float b) and printSum(double a, double b), printSum(float a, float b) is more specific.