Widening

Widening in Java can be defined as converting a variable of a particular type into wider type. E.g: short is converted int primitive type.

varargs

varangs is variable arguments. varangs as name suggest allows a method to have 0 or mutiple argument.

Syntax of varargs:

return_type method_name(data_type... variableName){} 

Proram of Autoboxing where widening beats varargs:

class Boxing1
{  
  static void m(int i1, int i2)  //overloaded method with int primitive type
  {
   System.out.println("int int");
  }  
   static void m(Integer... i)  overloaded method with varangs
  {
   System.out.println("Integer...");
  }  
  
  public static void main(String args[])
  {  
   short s1=30,s2=40;  
   m(s1,s2);  
 }   
}  

Output:

int int

In above program from main when overloaded method m is called with two short values as parameter then function m with int primitive type is called because short variables type is automatically converted to wider type i.e int. Therefore widening beats varargs which was parameter of overloaded method m in which 0 or multiple Integer wrapper types can be passed.