Arrays.asList(T... a)方法返回的List实际上是java.util.Arrays.ArrayList的一个实例，该类继承自java.util.AbstractList，并未独立实现java.util.List接口。由于其父类AbstractList中定义了remove等操作方法，因此该列表支持删除操作，但该实现具有局限性，底层基于传入的数组，不支持 ...

As demonstrated in the Arrays section of the Java Tutorials, the System class provides an arraycopy method that can be used to copy the contents from one array into another. The method below shows use ...