Java instances - array expansion
The following example demonstrates how to initialize the array after the array expansion:
/* author by w3cschool.cc 文件名:Main.java */ public class Main { public static void main(String[] args) { String[] names = new String[] { "A", "B", "C" }; String[] extended = new String[5]; extended[3] = "D"; extended[4] = "E"; System.arraycopy(names, 0, extended, 0, names.length); for (String str : extended){ System.out.println(str); } } }
The above code is run output is:
A B C D E