Returning a Value From a Method
The method can return a value, but method that can’t return anything is marked by void
keyword in the method definition:
This void
keyword means that the method doeas not return a value. If you want the method to return a value, we need to replace the void
keyword with the type of the variable to be returned. For example:
In this example Car
class has a method capacity
that always returned an integer-type (int) variable. In this case, the value 600.
This happens the same way as regular value assignment, i.e., by using the equals sign:
The method’s return value is assigned to a variable of type int
value just as any other int
value would be. The return value could also be used to form part of an expression.
To summarise:
- A method that returnes nothing has the
void
modifier as the type of variable to be returned:
- A method that returnes a string has the
String
modifier as the type of the variable to be returned:
- A method that returns a double-precision number has the
double
modifier as the type of the variable to be returned.
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