OnJava8-Examples/housekeeping/NewVarArgs.java

// housekeeping/NewVarArgs.java
// (c)2021 MindView LLC: see Copyright.txt
// We make no guarantees that this code is fit for any purpose.
// Visit http://OnJava8.com for more book information.
// Using array syntax to create variable argument lists

public class NewVarArgs {
  static void printArray(Object... args) {
    for(Object obj : args)
      System.out.print(obj + " ");
    System.out.println();
  }
  public static void main(String[] args) {
    // Can take individual elements:
    printArray(47, (float) 3.14, 11.11);
    printArray(47, 3.14F, 11.11);
    printArray("one", "two", "three");
    printArray(new A(), new A(), new A());
    // Or an array:
    printArray((Object[])new Integer[]{ 1, 2, 3, 4 });
    printArray(); // Empty list is OK
  }
}
/* Output:
47 3.14 11.11
47 3.14 11.11
one two three
A@19e0bfd A@139a55 A@1db9742
1 2 3 4
*/