包含标签:Java 的文章
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Java – add graphics to JFrame using borderlayout
I'm trying to do a simple job where I display a line of text to show whether the door object is open Below it, I visua…… -
Object size in Java
Suppose I have: Class A{ int a; } A obj = new A(); Then what is the size of obj? Is it the same size as int, just …… -
Java – add jpanels of other classes to CardLayout
I have three windows in three separate classes. I want to use CardLayout so that when you click the next button, the n…… -
Java – eclipse supports refactoring
Can eclipse do this refactoring? Suppose I have a class with a list: class DomainObject { private List list; p…… -
Play Framework 2.1(Java)eBean @Encrypted Annotation Errors
I'm trying to use the ebean @ encrypted annotation on the string field for the database model The document makes it lo…… -
Java – dagger: field injection in POJO
I've never tried guide or other Di libraries, but I've tried to use the dagger from square for Android application It …… -
Java – automatically opens the print dialog box when opening PDF using iText
I need to be able to automatically provide a print dialog when opening PDF I need JavaScript to do this. I wonder if i…… -
Java – pass a map or object from a JSP to a servlet
I have an application that passes the mapping from servlet to JSP In JSP, I display the map and provide the option to …… -
Java – how to use enum in the right way?
I like Java very much. I use enumeration for the first time, as shown below: public class Web { public String …… -
Writing XML documents from Java – simple
I know there are many problems in writing XML from Java on stack overflow, but it is too complex I think I have a very…… -
Database – when using JPA, avoid stale data from DB?
The problem I encountered is similar to that described in the invaliding JPA entitymanager session: Problem: getting s…… -
The Java class file was not created in the classes folder
I am compiling a java program with the following command: Ironically, the generated class file is created in the same …… -
Running Axis2 v.1. With JRE 5 / 6 6.2 what jars are needed to generate the client?
Which jars in the Axis2 distribution (version 1.6.2) are required to run the generated WebService client? There are se…… -
Java – “equality test with Boolean text” – test the difference between Boolean values and usage==
See English answers > Boolean checking in the 'if' condition 10 For this Code: boolean valid; if(valid == true) You…… -
Java – get question mark when inserting Hebrew characters into MySQL table
I am using NetBeans, using java to build web applications, and JSP uses Hebrew fields to process databases DDL is as f…… -
Java – add timeout function to swingworker
I will have to implement some functions for my application soon, timeout according to the length specified by the user…… -
Java JTree directory structure from file path
I've been trying to solve this problem, so maybe some of you can help me I have a list of files and their full paths (…… -
Java – camel CBR and POJO attribute check
I have a camel route for the order instance: from("direct:start") .choice() .when(order.getProduct() == Pr…… -
Java – no class loaded Jdbc driver for forname
Oracle JDBC tutorial says But when I delete class Forname, it will give the error no driver found I am using the Ojdbc…… -
Java – GWT error: requestfactory validationtool must be run
Every time I start my application, even if it is not executed listempty@R_444_2419 @ES (), an error "requestfactory va…… -
Java – need help writing numbers in reverse order
I got help with the task I don't ask anyone to do my job, but I really honestly insist on how to do it I should write …… -
Java EE – Java EE – search the web XML general specification
I'm new to Java EE I found web XML is a standard file (deployment descriptor) used by many servlet container / applica…… -
Java – creates an ArrayList on each index of the list
I have a list like this public List<String>[] Depth_List; Now in each index of this list, I want to create and A…… -
Java – a non recursive method for calculating a binary tree representing an arithmetic expression
As mentioned in the topic, I need to describe a method for evaluating binary arithmetic expression trees without recur…… -
Java – Best Practices for string instantiation
So why don't we use 'new' to create them? 14 In addition, whenever you want to instantiate a string object, do not use…… -
Gregorian calendar returns an incorrect day in Java_ OF_ WEEK
This Code: Calendar calendar; calendar = GregorianCalendar.getInstance(); calendar.set(year,month,day); week_day = cal…… -
How do I convert strings to operators in Java?
See English answers > is it possible to pass arithmetic operators to a method in Java? 8 import java.io.*; import j…… -
Java – jtextfield listener when modifying textfield text
I know how to add a text listener on jtextfield, trigger when the text changes, and modify the text of jtextfield duri…… -
Java – playframework module and routing
I use play! Frame 1.2 five I have a module 'business model' In conf / routes: I have a controller: package controllers…… -
Java temporary file multithreaded application
I'm looking for a simple way to generate a temporary file that always ends with a unique name on a per JVM basis Basic…… -
Java – how do I change the contents of the JScrollPane significantly each time I call the actionlistener?
Every time I call the action listener, I want the JScrollPane to change its list to a completely different list I'm no……