Java Methods with Variable Argument Lists, var-args

As of 5.0, Java allows you to create methods that can take a variable number of
arguments. This feature is also known as "var-args", "varargs", "variable-length argument lists" or "variable arguments,".

Var-args declarations
Here are some legal and illegal var-arg declarations:

Legal:

void myMethodX( int... a ) { } // expects from 0 to many ints
                             // as parameters
void myMethodY( char c, int... a ) { } // expects first a char,
                                     // then 0 to many ints
void myMethodZ( Animal... animal ) { } // 0 to many Animals
void myMethodXYZ( Object... anyKindOfObjects ) { } 
                            // 0 to many Objects

Illegal:

void myMethodA( int x... ) { }              // illegal syntax
void myMethodB( String... str, byte b ) { } // var-arg must be last
void myMethodC( int... x, char... y ) { }   // too many var-args

Accessing var-args
Example 1:

    public static void test(int some, String... args) {
        System.out.print("\n" + some);
        for(String arg: args) {
            System.out.print(", " + arg);
        }
    }

Example 2:

static int sum (int ... numbers)
{
   int total = 0;
   for (int i = 0; i < numbers.length; i++)
        total += numbers [i];
   return total;
}