Java support for variable parameter detailed _java

It means: The number of parameters can be written according to need, you can write 1, 2, 3 、、、、 They are saved to an array of parameters.

But these parameters have some constraints: they must be of the same type, such as all string types.

At the same time, the parameters in the function of the variable parameter are also constrained: for example, an array of variable parameters must be written at the end of the argument, or the program will not know how many of your arguments are.

Example: parameter values in output variable parameters

public class Variableargument {public
  static void Main (string[] args) {
    printargumentsinfo ("AAA", "BBB", "CCC", "ddd", "Eee");
  /**
   * Print parameter
   * @param an array of strings parameters
  /public static void Printargumentsinfo (string...strings) {
    for (int i=0;i<strings.length;i++) {
      System.out.println (argument + (i+1) +: "+strings[i]);}}}

Results:

Parameter 1:aaa parameter
2:bbb parameter 3:CCC parameter 4:ddd parameter
5:eee

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