包含标签：Java 的文章
-
Predicate based method of Java 8 stream indexof
See English answers > stream way to get index of first element matching Boolean int index = list.stream().indexOf(e…… -
java – Selenium – driver. Getpagesource () is different from the source viewed from the browser
I tried to use selenium to capture the source code from the specified HTML file, but I don't know why. I didn't get th…… -
Java – simple XML parsing from XML to list
I use simple XML (simple-xml-2.6.2. Jar) to parse XML files, such as: <?xml version="1.0" encoding="UTF-8" ?> &…… -
Open source Java reporting framework
I want to create several reports and select data from several SQL tables, so I don't create different reports. I want …… -
Java – declare and throw and throw without is declared exceptions
What is the difference between dual methods in Java? public void methodA() throws AnException { //do something …… -
Check whether the elements in the array are subclasses in Java
Let's assume that I want to check whether the values in the object array belong to a superclass or subclass. For examp…… -
Java – get an instance of class [runtime type token]
I created a preferences class. For getters, I don't want to use runtime type token So this is my getter method: public…… -
java. math. BigInteger pow (exponential) problem
I did some tests on the pow (index) method Unfortunately, my math skills are not enough to solve the following problem…… -
Java – spring MVC does not record all exceptions
I have spring MVC settings to log exceptions using commons, but I find that some runtime exceptions are not logged Thi…… -
Java – how to compile only changed source files using ant
I'm trying to write an ant build for compiling the source folder, which is the target of my compiled script <target…… -
Java – Alphanumeric regular expression
I want a regular expression in Java, which must contain at least one letter and one number in any position The passwor…… -
Java – how do I initialize graphics G?
I want to display gameover images in Pacman games at the end of my life But I call paintgameoverscreen (graphics g), a…… -
Java – displays tooltips above cells in JTable
When the user enters an incorrect value in it, I need to display a tooltip above (or below:) the cell (see the figure …… -
Java 8 time zone conversion
In Java 8, I want to convert datetime from UTC to ACST (UTC 9:30) Input – > 2014-09-14t17:00:00 00:00 Output – >…… -
What happens when a collection in Java exceeds its capacity?
I have a service that schedules all calls in memory because we don't want to lose data. At the same time, we need this…… -
For Java applications based on play 2.0, can I use groovy templates instead of scala?
I'm the new play 2.0, and it's hard for me to understand the scala template used to create views Solution Yes, there i…… -
Java – parameter org.org not found gradle. api. Project method (Android)
I got a bug. When I tried to compile my project in the studio, I had searched a lot without a real solution Error: (17…… -
Java – explicit and implicit locks
Using locks (Java. Util. Concurrent. Locks. Lock) instead of the keyword synchronized, is the method wait() exactly th…… -
External connection and ORM mapping in Sqlalchemy
I use ORM mapping 0.6 in Sqlalchemy eight I have three tables (a, B and C) and there are no foreign keys between them …… -
Enforce warnings in Java
I want a mechanism to manually throw compile - time warnings I'm using it to mark unfinished code, so I can't forget i…… -
Java – Android – asynchronous network call – response interdependence
I encountered this situation when developing Android applications today. I need to render graphics according to the re…… -
Java – how to use smack in openfire
Hello But I have little guidance on how to use it on openfire servers Does openfire provide a basic user interface, su…… -
Java – a variant of “looking for a common ancestor”
I recently had a telephone interview It encodes the problem as part of the whole process A / B | \ C …… -
Strange behavior of Java argument*
I wrote this lesson: public class ListArg { public static void main(String args[]) { for(int i=0;i<…… -
How to encrypt PDF using Java?
I've been trying to encrypt PDF using Java So far, I can successfully encrypt other file types (. TXT,. PNG, etc.) Whe…… -
Java – Convert date to localdate and return strange results around 200ad
When I converted dates to local dates in about 200 years, I got inconsistent results Use the following code for conver…… -
Java – would it be better to instantiate a new jdbctemplate in each query or inject a new jdbctemplate anywhere?
I have a Java library. I use spring's JDBC support to access the database through JDBC This library contains about 100…… -
Calculate the number of days between two dates in Java
See English answers > Android / Java – date difference in days17 public static long getNoOfDaysBtwnDates(String exp…… -
Java – do not log in to Catalina out
I have the following logging Properties configuration: 1catalina.org.apache.juli.FileHandler.level = FINE 1catalina.or…… -
Java – how do I implement an OutputStream that I can play back?
After writing some processed content to the output stream, I need to revisit the beginning of the stream and write som…… -
Write and implement new Java class files at run time
Is it possible to "import" a new Java class into a running program and use it in some way? I can let the program creat…… -
Java – load data larger than memory size in H2O
I am trying to load data larger than H2O memory size The H2O blog mentioned: the description of bigger data and GC: wh……