007-Java parameter variable number and array [...] overloading

When overloaded methods, the method for a variable number of parameter in two ways

• Array overloaded
• ... Overload

The two methods, in fact, is the same, for example:

. 1  public  class MethodArgsTest {
 2      // a variable number of parameter format: Data types ... parameter name 
. 3      public  void Show (String ... strs) {
 . 4          // of parameters passed String ... strs the strs as an array, the array how to use it how to use.
5          // deformable reference method number of parameter must be not declared at the end of the show (int i, String ... strs ) may, Show (STRs String ..., I int)
 . 6          // deformable method of parameter reference number, a maximum of only declare a reference deformable 
7      }
 8  //     array 
. 9      public  void Show (String [] STR) {
 10          
. 11      }
 12 is      
13 is      public  static  void main (String [] args) {
14         MethodArgsTest test = new MethodArgsTest();
15         test.show("aa", "bb", "cc", "dd");
16     }
17 }

 

　

Code above manner, write

show(String ... strs)

show (String [] str) 
will prompt the following error: