Java 归档 - Page 366 of 655

Java – how to get entity size in gae / J?

The gae document mentions that the maximum entity size is 1MB Because I store a lot of data in entities, I want to kno……

Java

2019-12-19

Java – getting started with Oracle Database

I was assigned the task of making Java Web applications work with Oracle databases I don't know where to start I hope ……

Java

2019-12-19

Java – localize Jfilechooser “all files” string

I'm using Jfilechooser to develop a Java application where users can switch languages Locale.setDefault( Locale.ENGLIS……

Java

2019-12-19

Java – exceptionhandler in spring

import org.springframework.beans.TypeMismatchException; import org.springframework.beans.TypeMismatchException; import……

Java

2019-12-19

Java – spring JDBC declarative transaction management in karaf

I have a project module that is built as an OSGi package (spring DM) I can't set up declarative transactions. Someone ……

Java

2019-12-19

Java – check whether the object is an instance of list

I have an object that sometimes contains list < Object > I want to check it with instanceof, and if so, add some……

Java

2019-12-19

Java – JPA one-to-one relationship, where the entity may not exist

I have many to one mapping between two entities (A and B, and a B can be associated with many as). I need to be able t……

Java

2019-12-19

JNI returns the signal 7 function and tries to call Java from C

I want to make a call from C to Java I try to call a function to invert a bool value without parameters This is my C c……

Java

2019-12-19

java – Jongo vs(DBObject)JSON. parse

I try to find out the advantages of Jongo instead of simply using (dbobject) JSON Parse (...) unmarshalls the JSON com……

Java

2019-12-19

Avoid nesting if else / switches – Java

I'm reviewing some code (Java) and making changes according to the business logic flowchart The current code relies on……

Java

2019-12-19

Java – store data in memory

I have "table a" in the database, which contains three columns "col 1", "col 2" and "col 3", with about 1000000 (1 mil……

Java

2019-12-19

Java EE – hornetq: how to reuse xaconnection and xasession

I encountered some problems when trying to reuse xaconnection and xasession on multiple workers in JBoss applications ……

Java

2019-12-18

Java – how to print “Hello world” Complete life cycle

I studied compiler, operating system and computer architecture in graduate school But I want to see these concepts (le……

Java

2019-12-18

Java – enables existing spring batch applications to run on multiple nodes

We have an existing spring batch application, and we hope it can run on multiple nodes The scalability documentation f……

Java

2019-12-18

Why does Java use heap data structures to store objects?

Or it does not use heap "data structures" The name allocated to memory (internal pool) was just called "heap"? If so, ……

Java

2019-12-18

Java – alternative to randomaccessfileorarray (byte [])

Who can tell me the alternative method of random access file or array (byte []) of iText Solution From located http://……

Java

2019-12-18

Java – an effective way to use neo4j to find a node set related to a given node

Given two nodes, is there an effective way to find a set of common nodes (with defined relationships) For example, con……

Java

2019-12-18

Java – why is it necessary to override hashcode and equals methods of HashMap?

See English answers > what issues should be considered when overriding equals and hashcode in Java? 11 Now I've rea……

Java

2019-12-18

Java dateformat: how to handle “ST”, “nd”, “Rd”, “th”?

How to use some dateformats to parse such strings? As far as I know, there is nothing in simpledateformat Solution Try……

Java

2019-12-18

In Java, is there a type constant equivalent to Pascal

In Delphi / Pascal, there is a mechanism through which local variables in a method can remember the value from one met……

Java

2019-12-18

Java – core and core_ Differences between RT and JSTL Tags

When I use <% @ taglib URI = "http: / / Java. Sun. COM / JSP / JSTL / core" prefix = "C"% > for my struts 1.3 10……

Java

2019-12-18

Using the dropwizard to process long requests

I have a simple dropwizard service. I want a rest API to start a long-running processing task - including CPU and I / ……

Java

2019-12-18

Java – get interceptor parameters in struts 2

I have the following action mapping <action name="theAction" ...> ... <param name="param1">one</par……

Java

2019-12-18

Java – try creating with strings

I found an interesting case when I used a string to create and check its hash code In the first case, I use the copy c……

Java

2019-12-18

Using recursive methods in Java

For homework, I was asked to write an inclusion method for the custom linked list public class OrderedList { private ……

Java

2019-12-18

Java – a technique for extending classes using private constructors

Is there a standard technique to "extend" classes with private constructors, like most singleton classes? Specifically……

Java

2019-12-18

Java – error: importing com google. appengine. api. Datastore failed to parse JPA gae GWT

Error in development mode [ERROR] [cbd] - Line 15: The import com.google.appengine.api.datastore cannot be resolved Us……

Java

2019-12-18

Java – the best way to pass objects between classes in different threads?

I have a "runnable" class "a" and I use Java unmarshallers to create new objects The maingui thread attempts to access……

Java

2019-12-18

Java – read data files into object arrays?

I encountered a problem reading files into an array of objects I created an IF statement to divide the data rows into ……

Java

2019-12-18

Java – streaming video using xuggler

I can successfully play the video with xuggler using the following code I need to be able to stream from InputStream i……

Java

2019-12-18

Unexpected token using lower bound wildcard (Java)

I have something similar: interface Foo<T> { //... lines [0,45]... /*line 46*/ <R,X super T&R> Li……

Java

2019-12-18

Java try / catch problem

I'm new to Java. I always encounter problems with the try / catch function in the code, so I wonder if you can help me……

Java

2019-12-18

搜索内容

Java – how to get entity size in gae / J?

Java – getting started with Oracle Database

Java – localize Jfilechooser “all files” string

Java – exceptionhandler in spring

Java – spring JDBC declarative transaction management in karaf

Java – check whether the object is an instance of list

Java – JPA one-to-one relationship, where the entity may not exist

JNI returns the signal 7 function and tries to call Java from C

java – Jongo vs(DBObject)JSON. parse

Avoid nesting if else / switches – Java

Java – store data in memory

Java EE – hornetq: how to reuse xaconnection and xasession

Java – how to print “Hello world” Complete life cycle

Java – enables existing spring batch applications to run on multiple nodes

Why does Java use heap data structures to store objects?

Java – alternative to randomaccessfileorarray (byte [])

Java – an effective way to use neo4j to find a node set related to a given node

Java – why is it necessary to override hashcode and equals methods of HashMap?

Java dateformat: how to handle “ST”, “nd”, “Rd”, “th”?

In Java, is there a type constant equivalent to Pascal

Java – core and core_ Differences between RT and JSTL Tags

Using the dropwizard to process long requests

Java – get interceptor parameters in struts 2

Java – try creating with strings

Using recursive methods in Java

Java – a technique for extending classes using private constructors

Java – error: importing com google. appengine. api. Datastore failed to parse JPA gae GWT

Java – the best way to pass objects between classes in different threads?

Java – read data files into object arrays?

Java – streaming video using xuggler

Unexpected token using lower bound wildcard (Java)

Java try / catch problem

Categories

Recent Posts

Tags