Varargs: Variable-Length Arguments
Java can accept arguments without mentioning number of arguments. This feature is called varargs and it is
short for variable-length arguments. A method that takes a variable number of arguments is called a variable-arity method, or simply a varargs method.
public class VariableLengthArguments {
static void vaTest(int... v) { // variable length arguments,no need to
// define
// individual arguments to match passing
// arguments
System.out.print("Number of args: " + v.length + " Contents: ");
for (int x : v)
System.out.print(x + " ");
System.out.println();
}
public static void main(String args[]) {
int n1[] = { 101, 102, 103, 104, 105 };
int n2[] = { 1, 2, 3 };
int n3[] = {};
vaTest(n1); // 5 arguments
vaTest(n2); // 3 args
vaTest(n3); // no args
}
}
