Description
A method declaration uses the keyword void to indicate that the method does
not return a value.
You can declared a void method as follows:
void SampleMethod (){
...
}
If a method is declared void, then its body must not contain any return statement that has an Expression.
Unlike C and C++, the Java language allows only certain forms of expressions to be used
as expression statements. Note that Java does not allow a "cast to void" (void
is not a type in Java) so the traditional C technique of writing an expression statement
such as the following does not work in Java:
(void) ... ; // This idiom belongs to C, not to Java!
Source: The Java Language Specification. Copyright (C) 1996 Sun Microsystems, Inc.