Java Beginner 2

1. Array operation class arrays and system

Public Static voidArraycopyObjectSrcintSrcpos,ObjectDestintDestpos,intLength): Used for array src to copy the length elements from the Srcpos element to the target array dest length elements starting from Destpos

2. Variable parameters of the method

int sum (int A,int  ... args) {}  

3, similar to foreach For Loop

 Public Static void Main (string[] args) {    string[] itcastnames={"Bjit", "Cdit", "Gzit"};      for (String name:itcastnames) {        + ",");}    }

Java Beginner 2