java入门---数组操作实例之数组扩容

    以下实例演示了如何在数组初始化后对数组进行扩容:

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:

A
B
C
D
E