以下实例演示了如何在数组初始化后对数组进行扩容:
Main.java 文件
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);        }    }}
以上代码运行输出结果为:
ABCDE

 Java 实例
 Java 实例