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public class ArrayList {

Object[] objects = new Object[10];
int index = 0;

public void add(Object object) {
if (index == objects.length) {
Object[] newObjects = new Object[objects.length*2];
System.arraycopy(newObjects, 0, objects, 0, objects.length);
objects = newObjects;
}
objects[index++] = object;
}


public int length() {
return index++;
}
}

本文标签: ArrayListimplement