The ArrayList class is a resizable array, which can be found in the java.util package.The difference between a built-in array and an ArrayList in Java, is that the size of an array cannot be modified (if you wan
In Java, we need to declare the size of an array before we can use it. Once the size of an array is declared, it's hard to change it. 在Java中,我们需要先声明数组的大小,然后才能使用它。一旦声明了数组的大小,就很难更改它。 To handle this issue, we can use theArrayListclass. TheArra...
代码语言:java AI代码解释 // 默认容量为10privatestaticfinalintDEFAULT_CAPACITY=10;// 所有元素transientObject[]elementData;// 数组实际数量privateintsize;// 可选的List迭代器privatestaticfinalclassListItr<E>extendsItr<E>implementsListIterator<E>{...} elementData数组存放ArrayList中的所有元素,size...
// 先将ArrayList的“容量”读出,然后将“所有的元素值”读出 private void readObject(java.io.ObjectInputStream s) throws java.io.IOException, ClassNotFoundException { elementData = EMPTY_ELEMENTDATA; // Read in size, and any hidden stuff s.defaultReadObject(); // Read in capacity s.readInt();...
Namespace: Java.Util Assembly: Mono.Android.dll Resizable-array implementation of the List interface. C# Kopiëren [Android.Runtime.Register("java/util/ArrayList", DoNotGenerateAcw=true)] [Java.Interop.JavaTypeParameters(new System.String[] { "E" })] public class ArrayList : Java.Util....
public class ArrayListDemo02 {public static void main(String[] args) {//创建集合ArrayList<String> array = new ArrayList<String>();//添加元素array.add("hello");array.add("world");array.add("java");//public boolean remove(Object o):删除指定的元素,返回删除是否成功System.out.println(array....
Fields inherited from class java.util.AbstractList modCount Constructor Summary Constructors ConstructorDescription ArrayList() Constructs an empty list with an initial capacity of ten. ArrayList(Collection<? extendsE> c) Constructs a list containing the elements of the specified collection, in the orde...
publicclassArrayList<E>extendsAbstractList<E> implementsList<E>,RandomAccess,Cloneable,java.io.Serializable { // 序列版本号 privatestaticfinallong serialVersionUID =8683452581122892189L; // 保存ArrayList中数据的数组 privatetransient Object[] elementData; ...
public class TestArrayList{ public static void main(String[] args) { // 创建集合 ArrayList<String> array = new ArrayList<String>(); // 添加元素 array.add("hello"); array.add("world"); array.add("java"); // public boolean remove(Object o):删除指定的元素,返回删除是否成功 ...
Module java.base Package java.util Class ArrayList<E>java.lang.Object java.util.AbstractCollection<E> java.util.AbstractList<E> java.util.ArrayList<E>Type Parameters: E - the type of elements in this list All Implemented Interfaces: Serializable, Cloneable, Iterable<E>, Collection<E>, ...