Java
-
Java – mockito: when method A.A is called, then execute B.B
I'm using mockito for JUnit testing class A{ public A(){} public final String a(String x){ return "A…… -
Java Swing animation looks messy How to make it look pro?
Update: semiconplex animation swing timer = trainwreck The ultimate source of the problem is the Java timer, both swin…… -
Java – extract a sequence of bits of any length from the byte [] array
I am looking for the most efficient way to extract a sequence of (unsigned) bits of any length (0 < = length = 16) …… -
Java – detect self crossing in closed Bezier curves
I created a "blob" shape by patching the cubic Bezier curve together (screenshot below) I want to be able to detect th…… -
Java – file extension for serialized objects
What is the most appropriate file extension when saving serializable objects to disk? FileOutputStream fos = null; Obj…… -
java – jNetPcap vs Jpcap
I wonder if anyone can give me some comments thank you! Solution I'm looking for the same thing Only people who encoun…… -
Java – JSON does not contain properties of nested objects
I have the following courses: public class Container { private String name; private Data data; } public class…… -
Java – why does a program compile for me, but not for another person?
My code is as follows. It's good for me, but my professor said he was receiving an error because few variables in my c…… -
Java – Cyrillic characters are not displayed in Jasper Report PDF
I tried to display Ukranian characters as PDF files in Jasper reports But it is not belittled in PDF format When I exp…… -
Java – can I get an enumeration based on the value of its field?
I want to get a specific enumeration based on its field value Enumeration: public enum CrimeCategory { ASBO ("Anti…… -
Java – find override method
In eclipse, what methods can you find now to override method declarations? Scenario: when I view a method in the base …… -
javax. Validation value list?
Is there any way to use javax Validation to validate variables of color type that need to use only the values of comme…… -
Java – how to add jtextfield to the menubar of JFrame?
I've been trying to reload JMenu and put some custom code to support jtextfield, but it's not going well My main goal …… -
What is the optimal thread pool size for simple java programs to run CPU based tasks
I use thread pool to execute tasks, which is mainly based on a little I / O of CPU, Executors.newFixedThreadPool(Runti…… -
Java property object to string
I have a Java property object that I load from a string in memory, which was previously from the actual The properties…… -
Dependency libraries on Java JNI and windows
Long story short: I have an executable jar whose call depends on lib JNI. DLL dll. And I got such a bad unsatisfied li…… -
Java – from system What is the worst resolution that nanotime can expect?
I'm writing software that requires microsecond resolution or better timestamps I'm planning to use system Currenttimem…… -
Is there a Java map keyset () equivalent to C’s STD:: map?
Is there a @ l_ 404_ 0 @ map keyset() is equivalent to C's STD:: map? The Java keyset() method returns "a set view of …… -
How to create SQL from Java Get the name of the day from the timestamp object?
How to start Java SQL from Monday and Tuesday Get the name of the day in the timestamp object? Solution You will use J…… -
Java – * and *? In spring @ scheduled (cron = “…”)
I've been looking at the spring boot example to schedule tasks（ https://spring.io/guides/gs/scheduling-tasks/ ）And r…… -
Java – all natural numbers, the sum is n, and the reverse sum is 1
I have a problem to solve N natural numbers are given I need to find a list of natural numbers, sum to a given number,…… -
Javafx-2 – JavaFX, how to freeze the position of some columns in a tableview
The idea is: on a tableview with n columns, the first m column can always be visible even with a horizontal scroll bar…… -
Parallel assignment in Java?
Does java have a python like [a, B, C] = (1,2,3) or PHP list ($a, $B, $C) = array (1,3)? Solution It's not true You ca…… -
Java – GWT superdevmode breakpoint does not work
I'm using IntelliJ. I try to put a breakpoint in a class. Sometimes it works, but sometimes it brings the debugger int…… -
Select statement in Java
public void search() throws Exception{ public void search() throws Exception{ Class.forName("sun.jdbc.odbc…… -
Java – immutable array thread safe
I have a question about the JAVA memory model This is a simple class introduction question: public class ImmutableIntA…… -
Java – advantages of log4j
The advantage of log4j is that the system Out and system Err set to output to log file? Solution At a high level, log4…… -
Java – why use J_ Username and spring_ SECURITY_ LAST_ Username variable?
Why do things turn out like this? <input type="text" name="j_username" value="${SPRING_Security_LAST_USERNAME}">…… -
Java series reel to disk
Because some very large lists and collections are built during a transaction, I ran out of memory in Java and repeated…… -
Java – how to add a JDBC MySQL driver to an eclipse project?
There is already an answer to this question: > how to install jdbc driver in eclipse web project without facing Jav…… -
Java – does pdfbox support spot color and color separation?
I am interested in using it in the project PDF@R_635_2419 @, the project needs to be able to specify spot color and co…… -
Java – collect Linux command output
I'm on a @ L_ 404_ 0 @ on the machine I have a java program that will run some linux commands, such as PS, top, list o……