包含标签:Java 的文章
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java – NullPointerException:Collections. binarySearch(List <?extends T>,T,Comparator <?super T>)line:not available
Print this stack error "collections. Binarysearch (list , t, comparator ) line: not available" int index = Collections…… -
Java – stop the full screen window to minimize joptionpane showMessageDialog?
code private MainApp() /* Extends JFrame */{ DisplayMode displayMode = new DisplayMode(800,600,16,75); ScreenM…… -
Java – JAXB schemagen ungrouping error
I am using JAXB to generate XML schema from my java class, so that other developers can easily create class instances …… -
Java – linkedblockingqueue and primitives
I need a linkedblockingqueue, but I pass the primitive to it The data rate added to the queue is about 4 milliseconds …… -
Java – is the hardware UUID on the MAC reasonable for licensing
OK, I know that no license scheme can be cracked; I'm not asking for one I have used a method in Java that combines th…… -
Embed jetty in a Java application and export it as a jar
I'm making a Java application embedded in jetty web server, which in turn provides content developed using Google Web …… -
Java – spring: create any number of beans using factory beans
I have a factory ish bean that creates many objects at startup. I hope these objects themselves are spring beans If I'…… -
What is the difference between two similar algorithms of Java – 3sum?
I am here http://www.leetcode.com/onlinejudge A 3sum problem was found on the, as follows: Given an array s of N integ…… -
Java – C3PO helper thread deadlock
I use C3PO pool with my GUI application I have the following configuration overrides.put("maxStatementsPerConnection",…… -
Recursive algorithm of space filled Hilbert curve in Java
I'm learning to write code in Java. I've learned the recursive part of Java programming I understand the basics of rec…… -
Check for pending changes when using WPF explicit binding
I have a modal pop-up window that contains a Check@R_955_2419 @, when the user clicks the Save button on the form, it …… -
Java – Preparedstatement and Oracle 10g bug
When we call some SQL in the Java Web application, I have a big but intermittent problem with errors in Oracle 10g. We…… -
JPA sets the where clause when querying the fields of two mapjoins
I'm trying to build a complex query My entity looks like this: @Entity public class Configuration{ @Id @Column(…… -
Java – how do I manage the native heap?
I'm studying the lazy list and I'm worried about it When the local heap is too large, how do we detect and control it …… -
Java – is there any way to use Sax parser and visitor mode?
I'm curious about this: if I need to use a Sax parser to improve efficiency (this is a big file) Usually I use somethi…… -
Java sequencer playlist
I currently have a very simple course: public class Music { private Sequence sequence; private Sequencer seque…… -
What is java locksupport Parknanos Net equivalent?
Basically, I need a way to start submicrosecond thread sleep, just like parknanos Thread. Sleep seems to be accurate t…… -
Struts2 ServletActionContext. Getservletcontext() method: get ServletContext object
public static ServletContext getServletContext() Example //获取上下文 ServletContext context = ServletActionContext…… -
Spring deleteall method: deletes all entity objects in the specified collection
deleteAll(Collection entities) Example public void delBoyUser(Collection users){ HibernateTemplate htm = getHiber…… -
Spring update method: updates the specified entity object
update(Object entity) Example public static void main(String[] args){ ApplicationContext context = new ClassPathX…… -
Hibernate query interface setdouble method: bind parameters with mapping type of double
Grammar 1 setDouble(int position,double val) Example String hql = "from GoodsForm where price=?"; //定义查询HQL语句…… -
Spring GetUserName method: get the user name to access the database
getUsername() Example public static void main(String[] args){ String driver = "com.MysqL.jdbc.Driver"; String …… -
Spring saveOrUpdate method: saves or updates entity objects
saveOrUpdate(Object entity) Example 1 public static void main(String[] args){ ApplicationContext context = new Cl…… -
Addorder method of Hibernate criteria interface: sets the collation of the result set
addOrder(Order order) Example Session session = sessionFactory.openSession(); //定义session对象 Criteria criteria …… -
Object serialization control input and output
What is object serialization public interface Serializable { } serialize public ObjectOutputStream (OutputStream ou…… -
JSP Session. Getattribute () method: get the attribute value according to the attribute name
getAttribute(String name) Example <% session.getAttribute("user"); %> Typical application <form name=…… -
Online examination system for Java project practice (with source code and analysis)
Development background requirement analysis System objectives Functional structure System business process development…… -
Java 9 enhanced “diamond” syntax
List<String> strList = new ArrayList<String>(); Map<String,Integer> scores = new HashMap<Strin…… -
JSP JSTL < x: choose > tag: complete condition judgment
body content( and subtags) Example <%@taglib prefix="x" uri="http://java.sun.com/jsp…… -
Hibernate load method: load entity objects through oid
load(Class theClass,Serializable id) Example Session session = sessionFactory.openSession(); //创建Session对象 Use…… -
Library management system for Java project practice (with source code and analysis)
Development background requirement analysis System objectives System functional structure System flow development envi…… -
Hibernate query interface setentity method: used to bind entity class parameters
setEntity(String name,Object val) Example Dept d = new Dept(); //定义表示部门实体的JavaBean对象 d.setId(3); //设……