Variable length parameters in Java

1**2* Created by Lenovo on 2017/12/10.3*variable length parameters in Java4*/5  Public classreflect04 {6 7     //M1 has a comparable variable length parameter of type int8     //M1 The argument can be 0-n when called9      Public Static voidM1 (int... a) {TenSYSTEM.OUT.PRINTLN ("int variable-length parameter execution ...." +a); One     } A  -     //If there is a method that can be precisely matched, the method is called, and the variable-length parameter is no longer executed. -      Public Static voidM1 (inta) { theSYSTEM.OUT.PRINTLN ("Exact match execution ..." +a); -     } -  -     //variable-length parameters can be equated as an array +      Public Static voidm2 (String ... args) { -          for(inti=0;i<args.length;i++){ +System.out.println ("M2 all like the sport as follows:" +args[i]); A         } at     } -  -      Public Static voidM3 (Class ... args)throwsexception{ -  -          for(inti=0;i<args.length;i++){ -Class arg =Args[i]; in System.out.println (Arg.newinstance ()); -         } to     } +  -     //variable-length parameters can only occur once, and can only appear in the last digit of all parameters the     //Error instance: *     //Public static void M4 (String ... args,int i) {} $      Public Static voidMain (string[] args)throwsException {Panax Notoginseng  -         //Executive M1 theM1 (1);//call the M1 method for exact matching +M1 (); AM1 (A); theM1 (1,2,3,4); +  -         //Executive M2 $M2 ("Travel", "See the movie", "Swim", "play"); $  -         //Executive M3 -M3 (Date.class, Employlee.class); the  -         //M1 OutputWuyi         //M1 Precision output: Exact match execution ..... 1 the         //int type variable long parameter execution .... [[Email protected] -         //int type variable long parameter execution .... [[Email protected] Wu         //int type variable long parameter execution .... [[Email protected] -  About         //m2 Output $         //m2 are fond of sports as follows: Travel -         //m2 are fond of the following sports: watching movies -         //m2 are fond of sports as follows: Swimming -         //m2 are fond of sports as follows: Play A  +         //m3 Output the         //Sun Dec 21:59:58 CST -         //NULL parameter construction method execution ... .. $         //employlee{name= ' null '} the     } the}

Variable length parameters in Java