包含标签：Java 的文章
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Java – use beans to send mail from JSF pages
I am using JSF and primefaces to create a web application. My problem is how to send e-mail through the contact form o…… -
JavaFX 8 datepicker function
I just started using the new JavaFX 8 control datepicker In datepicker user experience documentation, it claims that i…… -
How do you use CouchDB change notifications to make continuous changes from Java?
I'm trying to use CouchDB (continuous) change API in Java and find that after exhausting the current change list, the …… -
Java – how do I manage optional spaces in ANTLR?
I tried to parse the data file in ANTLR – it has optional spaces 3 6 97 12 15 18 The start and end positions of t…… -
How do I inform users that a specific tab in jtabbedpane needs attention?
Suppose you have a user interface with five or more tabs and you need to notify the user that tab "2" needs attention …… -
Java – change date format
If the input is 01-01-2015, it should be changed to 2015-01-01 //Class to change date dd-MM-yyyy to yyyy-MM-dd and vic…… -
How to protect methods in Java (overflow, etc.)
I have to write a "watchdog" in Java to ensure that threads do not take long to execute There is no problem with objec…… -
Java – I can have the ArrayList string in the realm object Android
Since we don't have any list data types in the domain, how can we use ArrayList < string > to create objects in …… -
Java – use transferhandler to drag jlabel (drag and drop)
I'm using the transferhandler to transfer data from JPanel to jtextarea as a jlabel (click somewhere in the left panel…… -
Java – generic type parameters depend on itself
I encountered the following situations: I understand this: In the type parameter part of the class, if s is the bounda…… -
Java – Apache beam – integration test of unbounded pcollection
We are building integration tests for the Apache beam pipeline and have encountered some problems For background infor…… -
Java – Android Google Maps V2 – SD card as tile provider
I am using Google Maps API V2 to develop an Android application. I have to use offline tiles. I have all tiles of the …… -
Add two vectors by name
I have two named vectors v1 <- 1:4 v2 <- 3:5 names(v1) <- c("a","b","c","d") names(v2) <- c("c","e","d") I…… -
Java – checks at run time whether a class has a specific constructor that uses generics
Hello:) I'm trying to choose the correct constructor in the class This is the code: Constructor[] constructors = targe…… -
Java – JPA – delete children from the onetomany relationship
In the @ onetomany relationship, if I want to delete a child, do I need to explicitly delete the child from the parent…… -
Java – spring boot devtools gets ClassCastException from the cache
I'm having trouble getting value from the cache java.lang.RuntimeException: java.lang.ClassCastException: com.mycom.ad…… -
Suggestions for finding end-to-end Java CPU profilers [closed]
What good end-to-end CPU analyzers exist in Java? Quick list I'm looking for: >Offline analysis – no user interacti…… -
Java – signal / slot mechanism
For people with relatively new Java ecosystems, is there a fairly lightweight way to perform the processing of their s…… -
Java – how to read line by line using FileReader
Thank you for your attention I created a program and I am using the login form and registration form Once users regist…… -
java – EJB3 / JPA @Transactional
Is there an EJB or JPA annotation equivalent to spring's @ transactional? Solution The equivalent EJB 3 attribute is j…… -
Java – how to make jtidy format HTML documents well?
I'm using jtidy v.r938 I'm using this code to try to clean up the page final Tidy tidy = new Tidy(); tidy.setQuiet(fal…… -
Is there a data structure / library in the memory OLAP / pivot table in Java / Scala?
Related issues This question is very relevant, but 2 years old: in memory OLAP engine in Java background I want to cre…… -
Java – tag interface
Can anyone explain the contract of marking interface in Java? For ex: if clonable is a tag interface without fields / …… -
Why is java safe compared to other programming languages?
Java vendors and communities say that "Java is more secure than other languages." But I want to know what? If we look …… -
Java – use jersey-spring3 to retrieve managed beans from the Jersey test container
This question is derived from the previous question specify custom application context We are using Jersey spring to b…… -
Key of string in Java RSA
I use RSA encryption in my application To store the generated public key, I convert it to a string and save it in the …… -
Java – how to execute unit tests using threads?
Executive Summary: when an assertion error is thrown in the thread, the unit test will not crash This makes sense beca…… -
Java – why the super class method?
class One { class One { public void doThing(One o) {System.out.println("One");} } class Two extends One{ public…… -
java – httpURLConnection vs apache commons http
I just want to know if you have any problems using the Java default httpurlconnection class A bug that lets you switch…… -
And Java util. stream. Stream processes two lists in parallel
For each element in each list, perform an action Elements can be processed in any order For example, in old Java: List…… -
Java – querydsl – case expression with string value
QueryDsl 3.3. four public class Document { private Confirmation confirmation; } public class Confirmation { .…… -
User interface – which is a better tool for BlackBerry application development?
Which GUI development option provides an optimized and faster GUI for BlackBerry applications? Solution There is no do……