The use of variable parameter function in Java foundation---->java

Java's parameter function implementation is actually an array, and today we will simply learn how to use it.

In Java, the variable parameter function one, it uses the following method:

 Public classVariableparam {Private Static voidvariableParam1 (Object ... args) { for(Object V:args) {System.out.print (v.tostring ()+ " "); } System.out.println (Args.length); //you can see that the args and arrays have the length property} @Test Public voidparam_1 () {//if it's list<string>,List<string> Lists1 =NewArraylist<>(); Lists1.add ("Huhx"); Lists1.add ("Linux"); VARIABLEPARAM1 (LISTS1); //[Huhx, Linux] 1//if it's list<object>,List<object> lists2 =NewArraylist<>(); Lists2.add ("Huhx"); Lists2.add ("Linux"); VARIABLEPARAM1 (LISTS2); //[Huhx, Linux] 1//if it is an arraystring[] Arrays1 =Newstring[]{"Huhx", "Linux"};//HUHX Linux 2variableParam1 (ARRAYS1); //if it is an arrayobject[] Arrays2 =Newobject[]{"Huhx", "Linux"}; VARIABLEPARAM1 (ARRAYS1); //HUHX Linux 2//if the parameterVARIABLEPARAM1 ("Huhx", "Linux");//HUHX Linux 2    }}

Second simple use case

 PublicString Basereplacefromarray (String string, list<string>list) {    returnMessageformat.format (String, translistinfoarrays (list));}PrivateString[] Translistinfoarrays (list<string>list) {    intLength =list.size (); String[] Arrays=NewString[length];  for(inti = 0; i < length; i++) {Arrays[i]=List.get (i); }    returnarrays;} @Test Public voidbasereplacefromarray_test () {List<String> list =NewArraylist<>(); List.add ("Huhx"); List.add (L "); System.out.println (Basereplacefromarray ("{0} love {1}", list));//huhx Love L. }

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The use of variable parameter function in Java foundation---->java