package
                            
                             varargsdemo
                            
                              ;
                            
                            

                            

                            
                              /**
                            
                            

                            
                               *
                            
                            

                            
                               * @author hitdong
                            
                            

                            
                               * @version 1.0
                            
                            

                            
                               * @since 2010.1.1
                            
                            

                            
                               */
                            
                            

                            
                              public class Main
                            
                            
                              {
                            
                            

                            

                            
                              /**
                            
                            

                            
                                   * @param args the command line arguments
                            
                            

                            
                                   */
                            
                            

                            
                              public static
                            
                            
                              void
                            
                            
                              main
                            
                            
                              (
                            
                            String
                            
                              []
                            
                             args
                            
                              )
                            
                            
                              {
                            
                            

                            
                              /*
                            
                            

                            
                                       * 不傳遞參數(shù)
                            
                            

                            
                                       */
                            
                            

                                    printArgs
                            
                              ();
                            
                            

                                    System
                            
                              .
                            
                            
                              out
                            
                            
                              .
                            
                            
                              println
                            
                            
                              (
                            
                            
                              "--------------------------"
                            
                            
                              );
                            
                            

                                    String arg1
                            
                              =
                            
                            
                              "This is the first args"
                            
                            
                              ;
                            
                            

                                    String arg2
                            
                              =
                            
                            
                              "This is the second args"
                            
                            
                              ;
                            
                            

                            
                              /*
                            
                            

                            
                                       * 并列地傳給多個(gè)參數(shù)
                            
                            

                            
                                       */
                            
                            

                                    printArgs
                            
                              (
                            
                            arg1
                            
                              ,
                            
                            arg2
                            
                              );
                            
                            

                                    System
                            
                              .
                            
                            
                              out
                            
                            
                              .
                            
                            
                              println
                            
                            
                              (
                            
                            
                              "--------------------------"
                            
                            
                              );
                            
                            

                            

                            

                                    String
                            
                              []
                            
                             argsArray 
                            
                              =
                            
                            
                              new
                            
                             String
                            
                              []{
                            
                            

                                      arg1
                            
                              ,
                            
                            

                                      arg2
                            
                              };
                            
                            

                            
                              /*
                            
                            

                            
                                       * 以數(shù)組方式傳遞多個(gè)參數(shù)
                            
                            

                            
                                       */
                            
                            

                                    printArgs
                            
                              (
                            
                            argsArray
                            
                              );
                            
                            

                                    System
                            
                              .
                            
                            
                              out
                            
                            
                              .
                            
                            
                              println
                            
                            
                              (
                            
                            
                              "--------------------------"
                            
                            
                              );
                            
                            

                            
                              }
                            
                            

                            

                            
                              /*
                            
                            

                            
                                   *些函數(shù)接受類型為String的個(gè)數(shù)可變的參數(shù)，形參varargs是個(gè)數(shù)組
                            
                            

                            
                                   */
                            
                            

                            
                              public static
                            
                            
                              void
                            
                            
                              printArgs
                            
                            
                              (
                            
                            String
                            
                              ...
                            
                            
                              varargs
                            
                            
                              ){
                            
                            

                            
                              int
                            
                             argsLength 
                            
                              =
                            
                             varargs
                            
                              .
                            
                            
                              length
                            
                            
                              ;
                            
                            

                            
                              if
                            
                            
                              (
                            
                            argsLength 
                            
                              ==
                            
                            
                              0){
                            
                            

                                        System
                            
                              .
                            
                            
                              out
                            
                            
                              .
                            
                            
                              println
                            
                            
                              (
                            
                            
                              "Give no args"
                            
                            
                              );
                            
                            

                            
                              }
                            
                            
                              else
                            
                            
                              {
                            
                            

                                    System
                            
                              .
                            
                            
                              out
                            
                            
                              .
                            
                            
                              println
                            
                            
                              (
                            
                            
                              "the args number is:"
                            
                            
                              +
                            
                            varargs
                            
                              .
                            
                            
                              length
                            
                            
                              );
                            
                            

                            
                              }
                            
                            

                            
                              for
                            
                            
                              (
                            
                            
                              int
                            
                             i 
                            
                              =
                            
                            
                              0;
                            
                             i 
                            
                              <
                            
                             argsLength
                            
                              ;
                            
                             i
                            
                              ++)
                            
                            
                              {
                            
                            

                                        System
                            
                              .
                            
                            
                              out
                            
                            
                              .
                            
                            
                              println
                            
                            
                              (
                            
                            
                              "args "
                            
                            
                              +
                            
                            i
                            
                              +
                            
                            
                              " is "
                            
                            
                              +
                            
                            varargs
                            
                              [
                            
                            i
                            
                              ]);
                            
                            

                            
                              }
                            
                            

                            
                              }
                            
                            

                            
                              }
                            
                          

                            Give no args
                            

                            
                              --------------------------
                            
                            

                            the args number 
                            
                              is:
                            
                            
                              2
                            
                            

                            args 
                            
                              0
                            
                             is This is the first args
                            

                            args 
                            
                              1
                            
                             is This is the second args
                            

                            
                              --------------------------
                            
                            

                            the args number 
                            
                              is:
                            
                            
                              2
                            
                            

                            args 
                            
                              0
                            
                             is This is the first args
                            

                            args 
                            
                              1
                            
                             is This is the second args
                            

                            
                              --------------------------