From Java 5 onwards, we may create methods having variable number of arguments. Such methods having three dots (…) as the argument known as ellipsis.

class CodingDots
{
  static void method(String ... str)
  {
   System.out.println("Data is : ");
   for (String s : str)
   {
     System.out.println(s);
   }
  }
  public static void main(String args[]) 
  {
   method("C","C++","Java"); // call with 3 args
   method("C,","C++","Java","Python","C#","JS"); // with 6 args
  }
}

OUTPUT:-
Data is : 
C
C++
Java

Data is : 
C,
C++
Java
Python
C#
JS

Another Example:- Find sum of all given numbers.

class CodingDots
{
 static void sum(int ... input)
 {
   int total=0;
  
   for (int n : input)
   {
     total = total + n;    
   }
   System.out.println("Sum of given numbers is "+total);
 }
  
 public static void main(String args[]) 
 { 
   sum(10,20,30);
   sum(5,10,15,20,25);
 }
}

OUTPUT:-

Sum of given numbers is 60
Sum of given numbers is 75