elementData = Arrays.copyOf(elementData, newCapacity); } } 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 这个方法首先将当前未添加的数组长度拿到,之后判断minCapacity(即size+1)是否大于oldCapacity,若大于,则调整容量为max((oldCapacity*3)/2+1,minCapacity),调整elementData容量为新的容量,即将返...
因为 Arrays.asList 返回的 ArrayList 是 Arrays 的静态内部私有类实现,不是常用的那个 ArrayList,这里的 ArrayList 继承自 AbstractList,但是只实现了 size、toArray、get、set、contains 几个方法,其他常见的 add、remove 等方法都没实现,所以才抛出异常了。此外像 ArrayList<Integer> list = Arrays.asList(1, 2...
/*** 发送post请求,拿到响应数据*@description提交form表单*@paramurl 请求地址*@paramparamsMap 请求入参*@paramresponseDataClass 响应数据类型所对应的Class*@returnT 响应数据* 数据类型与入参responseDataClass保持一致*/publicstatic<T> TsendPostByForm(String url, Map<String, Object> paramsMap, Class<T> ...
privateEntry<E>entry(int index){if(index<0||index>=size)thrownewIndexOutOfBoundsException("Index: "+index+", Size: "+size);Entry<E>e=header;if(index<(size>>1)){for(int i=0;i<=index;i++)e=e.next;}else{for(int i=size;i>index;i--)e=e.previous;}returne;} 换了ArrayList的...
第一个是直接使用new ArrayList()实例化的对象,所以他的类型是java.uitl.ArrayList。第二个是使用的是Arrays.asList()方法初始化的对象,看方法asList()的源码,如下所示: /** * Returns a fixed-size list backed by the specified array. (Changes to ...
add text file data into arraylist Add Text to a Textbox without removing previous text Add Two Large Numbers Using Strings - Without Use of BigInt Add user properties settings at run time... Add Username and Password Json File in C# Add XElement to XDocument Adding "ALL APPLICATION PACKAGES...
public class NamingProxy { private static final int DEFAULT_SERVER_PORT = 8848; private int serverPort = DEFAULT_SERVER_PORT; private String namespaceId; private String endpoint; private String nacosDomain; private List<String> serverList; private List<String> serversFromEndpoint = new ArrayList<Stri...
Control size of Excel window openned with PoweShell? Conversion error when inserting into a SQL Server table Convert a perl script to use in powershell instead Convert a string to a PSObject Convert array to string Convert Arraylist to delimited string Convert C# code in to PowerShell Script ...
Object type: class java.lang.String, size: 24 bytes Object type: class java.lang.String, size: 24 bytes Object type: class [Ljava.lang.String;, size: 32 bytes Object type: class [Ljava.lang.String;, size: 416 bytes Object type: class java.util.ArrayList, size: 24 bytes Object type:...
build(); List<JsonDataWithSchema> genericJsonRecords = new ArrayList<>(); genericJsonRecords.add(jsonSchemaWithData); try (KafkaProducer<String, JsonDataWithSchema> producer = new KafkaProducer<String, JsonDataWithSchema>(properties)) { for (int i = 0; i < genericJsonRecords.size(); i++...