Java
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Java – proper use of bonecp
I just started using bonecp and extracted JDBC code from the author's website I have a function called getconnection (…… -
Java – identify future time zone transitions
I need to predict that the next transition of at least 2 time zones will be a specific time zone Java 8 provides a new…… -
Why doesn’t Java convert int [] to integer []
When I do the following things, >Arraylist1 – contains an element that is an int []. > Arraylist2 – not compilin…… -
Java – a good way to filter lists sorted by attribute and by date
I have very simple things to do. I have such a list of personnel: [{ name: John,date: 01-01-2018,attend: true },{ …… -
Implementing label bar in JavaFX
Demonstration answer: (3:10 a.m. on May 29) **10 / 7 / 2016 * * you can find the code in GitHub Answer to practical qu…… -
Java – performance overhead of AOP
I wonder if there are any major performance problems if AspectJ is used to intercept every (or most) method in the app…… -
Java – can I force the elimination of what rhinoceros calls overloading?
Perform the following tests: public static class Scripted { public void setThing(List<?> list) { Sys…… -
Java – why does “MVN assembly: single” use only assemblies to create a fat jar instead of my code?
I have a maven project created with spring roo When I run MVN assembly: single, I get a fat jar containing all the dep…… -
Does it make sense to use a simple framework for Java Web applications?
I have done a lot of Java Web development using JSPS and servlets, and I find this method direct and flexible Some of …… -
Java – should the main method copy input parameters?
One can imagine this Code: public static void main(final String[] args) { // do something } It should be public sta…… -
Was the formatting syntax of simpledateformat invented by Java?
Is the syntax of the date time format string defined by the simpledateformat class of Java (such as "EEE, mmm D", "YY"…… -
Java – can I get the SQL alias of the connection table of Hibernate sqlrestriction?
I have a person class that has an alias for a collection of strings that represent additional names that people may go…… -
How to handle exceptions in map() in observable in rxjava
I want to do this: Observable.just(bitmap) .map(new Func1<Bitmap,File>() { @Override…… -
Java – prints elements from the array, commas between elements except the last word
I output elements from the array list. I want to add a comma between every word except the last word Now I do this: fo…… -
Java – MySQL does not reconnect with JNDI Tomcat 6
I am using JNDI and Tomcat6 to manage my MySQL connection, my Catalina / domain com / ROOT. XML includes: <Resource…… -
Java – how do I find out if an object is an integer or isa string or isa Boolean?
I have an object that I want to detect, so I can call if (obj isa Integer) put(key,integerval); if (obj isa String…… -
Java – a view in runonuithread
I'm making a custom ImageView One way is to load images from URLs And I want to retrieve the bitmap in a thread and lo…… -
Automated unit testing for maintaining object method contracts in Java?
When developing Java applications, I often rewrite object methods (usually equals and hashcode) I want some ways to sy…… -
Warning: [unchecked] unchecked call put (k, V) as a member of the original type Java util. Hashtable localParams. put(name,values);
I have two warnings: HELPDESKGESTION2\src\java\glpi\filter\LoginFilter.java:289: warning: [unchecked] unchecked call t…… -
R: Use the position information of the element when looping the vector
Can I use the index of the element and the element when looping through a vector? a. Vector < - C ("a", "B", "C", "…… -
Java – prevent duplicate activities
So I'm both a novice in Java and creating Android applications, but not a novice in programming I've read most of deve…… -
Java – can I use spring’s @ component on enumerations?
I use spring 3.0 X and follow the enumeration singleton pattern of one of my implementations public enum Person implem…… -
What does the Java – loadload barrier really do?
In Java, when two threads share the following variables: int a; volatile int b; If thread 1 executes: a = 5; b = 6; Th…… -
Error classes in Java
I try to understand the error class in Java I have a good understanding of the exception class, but I can't find the c…… -
Java – eclipse – declare variables based on return or get (shortcut)
I don't know how to use this phrase in search, but if there is a shortcut in eclipse that allows us to declare a varia…… -
java. io. IOException: invalid keystore format
Who knows how to solve this problem? When I click on more details, I get this: at sun.security.provider.JavaKeyStore.e…… -
Java uses machines to send keystrokes to humans
I know that robot class can be used to send keystrokes in Java, but is there any way to specify the target process whe…… -
Java – query the usage of this variable in recursion
After calling the method, node.nth(5) In the following code, public class List_Node { int item; List_Node next…… -
Java – NFC and NFC tools to create nDef applications
I tried to do what I would guess would be simple, but it turned out not to be I have an acr122 NFC reader and a bunch …… -
Java – prevent duplicate activities
So I'm both a novice in Java and creating Android applications, but not a novice in programming I've read most of deve…… -
Java – is it possible to define a Jax RS service interface separate from its implementation (using eclipse and Jersey)?
I don't know if the title is confusing, but let's say I have this interface: @Produces(MediaType.APPLICATION_JSON) @Pa…… -
Java – Jackson renames the original Boolean field by deleting ‘is’
This may be repeated But I couldn't find a solution I have a class public class MyResponse implements Serializable { ……