Java: double vs float

Question

In another Bruce Eckel exercise, the code I\'ve written takes a method and changes value in another class. Here is my code:

class Big {
  float b;
}

public         


        

Answer 1

float range is lower than double so a float can be easily represented in double, but the reverse is not possible because, let say we take a value which is out of float range then during convention we will lose the exact data