Question

This is the conversion to a lower-ranked type that Java does not automatically do.

a) Implicit conversion
b) Explicit conversion
c) Type casting
d) Widening conversion

Answer 1

The Java conversion to a lower-ranked type that requires programmer intervention is called explicit conversion or type casting. This involves the use of additional syntax, such as (int)myDoubleVariable, to convert a double to an int.

Step-by-step explanation:

The conversion to a lower-ranked type that Java does not automatically perform is known as explicit conversion or type casting. Unlike implicit conversion or widening conversion, where the conversion happens without the need for any additional syntax, explicit conversion requires the programmer to write extra code to inform the compiler that they are aware of the potential loss of information or precision.

For example, when converting a double to an int, you would need to use type casting because a double is a 64-bit value and an int is a 32-bit value, so you're moving to a type with less precision. The syntax to perform this in Java is:

(int)myDoubleVariable;