包含标签：Java 的文章
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Java – Android WebView cookie returns null
I want to set and retrieve a cookie in WebView in Android I've tried many cookie manager scripts to try to make it wor…… -
Java – locationclient getlastlocation() returns null
I'm new to Android programming and want to start by creating a very basic application that displays the latitude and l…… -
Multithreading – how to update GUI from thread using Delphi
I am using Delphi anonymous thread to execute code If I do this from within the thread, changes will occur, but once t…… -
Java – when to create an Enum instance?
I have a simple question about enumeration in Java. Please refer to the following code When to instantiate propname Co…… -
In Java, how to define the endian of the data being written when using dataoutputstream to write a file?
I am using dataoutputstream to write to the file, but I want to change the endian of the data This is how I write byte…… -
Java – replace substrings of matching regular expressions
I get some HTML and do some string manipulation and use similar strings string sample = "\n \n 2 \n \n \ndl…… -
java. util. zip. Zipexception: duplicate entry: Android / support / V7 / graphics / drawable / drawableutils class
I just changed the support library from 23.0 0 updated to 23.1 0, now when I build the project, I receive this error: …… -
Java – a method to speed up full count sorting
I had a problem at hackerrank Due to timeout, my first attempt passed all test cases except the last one After failing…… -
Java – my autoclosable Can the close () implementation detect potential exceptions?
When implementing autocolosable to use the Java 7 try with resources statement, I want to know if there are exceptions…… -
Java – class #getdeclaredmethods () returns inherited methods
See English answers > getdeclaraedmethods() being differently in Java 7 vs. Java 81 interface A { A setX(Object…… -
Java – how to set the location of jooptionpane
I'm creating this joptionpane JOptionPane.showMessageDialog(this,"File was saved","Save",JOptionPane.INFORMATION_MESSA…… -
Java – how to run applications from war?
I have a large war file that contains many classes with main methods How can I point out the main specific classes tha…… -
Java – how to simulate a null safe operator with a default return value?
I'm sorry for the title, but I can't find a good way to describe the problem in one sentence In short, I have a lot of…… -
Is Java’s RNG (using seed) platform independent?
Apologize in advance for the (seemingly obvious) question I didn't find the answer online, so I think I would ask: Uti…… -
Querying interfaces in Java
Say I have two interfaces a and B: public interface A { public int data(); } public interface B { public char dat…… -
Java – how to reuse fieldlength in form, validation and DDL?
I am developing a spring application that contains a large number of input forms I want to reuse field lengths in UI f…… -
How do I merge a map list into a map?
Can you help me solve Java streams? As you can see from the title, I need to merge list < map < string, map <…… -
What is a Java backreference?
Especially in the context of the readunshared () method of objectinputstream, I came across the word here reference re…… -
Java – orientdb encountered problems using Unicode, Turkish and enumeration
I'm using a lib with enumeration types, which are similar to consts; Type.SHORT Type.LONG Type.FLOAT Type.STRING When …… -
Java – performance advantages of static empty array instances
The usual approach is to extract the return value of an empty array of constants as static constants Like here: public…… -
Java generics: get class >?
I'm having trouble using generics The following examples are given: class A<T> { public A(Class<T> myTyp…… -
Sshd java example
Anyone can give me some sample code, use sshd to access the server and execute some commands from a Java application I…… -
How do you implement tuples in Java for learning algorithms?
I'm learning the algorithm by myself. If my title is incorrect, I'm sorry! I don't understand how to implement it in J…… -
When inserting in ArrayList, Java util. ConcurrentModificationException
See the English answer > how to avoid Java util. Concurrent modificationexception when iterating through and removi…… -
How to substring a UTF8 string in Java?
Suppose I have the following string: R ü ckrufinsausland. I need to insert it into a database with a maximum size of 1…… -
Java – how to correctly encode this URL
I tried to get this URL using jsoup http://betatruebaonline.com/img/parte/330/CIGUE ÑAL.JPG Even with coding, I have e…… -
How to use Xdebug and eclipse IDE for PHP
Hello, my PHP project is set up on the remote test machine I need to use the eclipse IDE for debugging How can I impro…… -
Java HashMap detected a collision
Is there a way to detect collisions in Java hash maps? Anyone can point out that there are many collisions where some …… -
Java – volatility of reference types – does it always avoid publishing references due to JMM?
Suppose this lesson: public class AmIThreadSafe { private int a; private int b; AmIThreadSafe(int a,int …… -
How to add JDBC Properties to spring / Hibernate?
I encountered the following error when trying to pass the value from the properties file to spring, so I don't have to…… -
Occurs before the relationship in the JAVA memory model
With regard to JLS ch17 threads and locks, it says "if an action occurs before another action, the first action is vis…… -
Java – continue statement marked in the while loop
The following simple example causes compile - time errors But it is not clear why public static void main (String[] ar……