包含标签：Java 的文章
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Is there a “best” or most popular database with stand-alone Java applications?
Is there a "best" or more popular database with stand-alone Java applications? Update: talk about small applications (…… -
Java – jasperreports is exported to xlsx instead of XLS
I can't find how to export jasperreports 4.1 1 Xlsx file JRXlsExporter There is no xlsx equivalent I can't find a para…… -
Java – Android – open or restart the application after clicking the push notification using the flag activity
I use push notifications in Android When I receive a push notification, if the application is still running, I want to…… -
Create a zero int array in Java
How do I initialize all elements of an array to 0? for example int[] array = new int[10]; return array[2]; Should retu…… -
Java – maps strings to integers
The simplest method in Java is to map a string (Java string) to a (positive) integer (Java int) >Are equal strings …… -
Java – split screen in libgdx
The question is short and simple How to create split screen effect in libgdx If I create two cameras, it will draw one…… -
Java – factory pattern dynamic method
I'm trying to understand the factory model If there are many implementations, there will be many switch cases in my fa…… -
Java – it makes sense to override the methods in the interface
There is already an answer to this question: > why Java 6 overrides keyset(), entryset() and values() interface in …… -
Avoid checkstyle magic number errors in JDBC queries
I'm having a group project in class. We're trying checkstyle I'm very satisfied with Java, but I've never touched JDBC…… -
. Net and Httpwebrequest are equivalent in Java?
. Net has Httpwebrequest and webclient to simulate browser requests I will Google, but I don't know what keywords to u…… -
[ljava. Lang. object; cannot be discarded
I want to get the value from the database. In my case, I use list to get the value from the database, but I receive th…… -
Java: cloning arbitrary collections by referencing collections
Suppose you have a method of type Java util. Collection, and it can't be said which Java it will point to at run time …… -
Java – why do we have immutable empty maps?
/** /** * Returns the empty map (immutable). This map is serializable. * * <p>This example illustrates the t…… -
Java – WebService call timed out from the client
I am using resteasy client to call WebService One requirement is to abort / timeout the call if the running time excee…… -
Java – how to create a global variable in Android?
See English answers > 12 Android global variables I've tried to put it in a custom class, but the problem is that i…… -
Java – use App Engine to customize the data storage location on the local computer
I am developing App Engine Application in Android studio and testing it on the local computer (using local data store)…… -
Java – why compile code with consecutive semicolons?
According to my scientific Java experiment, int x = 0; Equivalent to int x = 0;; This is equivalent to int x = 0;;;;;;…… -
java. Lang.illegalargumentexception: the observer is null
A user of one of my applications reported this error I'm confused about how to solve what it means After a Google sear…… -
Java – Android support library: getdrawable independent vector or not
When using Android > = 5.0, Drawable d = getResources().getDrawable(R.drawable.icon) Parse the XML correctly and re…… -
Java – anti hacking solution for secret keys in Android applications?
I need to store a private string key in the application Its value never changes and is set manually in the code I can'…… -
Java – cachedrowsetimpl cannot resolve to a type
I am using cachedrowset to save the resultset form dB CachedRowSetImpl crs = new CachedRowSetImpl(); But eclipse remin…… -
Java EE – GlassFish V3 domain server cannot start The port is occupied
I imagine this is a very general mistake I can't seem to find any files I'm just trying to run a Java Web project with…… -
How to run Java programs on the server?
I've made a will The data in CSV file is stored in the Java application of MySQL database Now my client wants to uploa…… -
Unit test cases using JUnit (robolectric or mockito or both in Android)
This is the first time I have written unit test cases in Android So I searched a lot of things >Robolectric framewo…… -
Java – Eclipse’s $fall-through $annotation standard?
I use eclipse, so I use / / $fall - through $annotation, which is a common practice in switch statements and so on But…… -
Java – how can pattern search be faster?
I'm processing about 1GB of incremental files and I want to search for a specific pattern Solution Basically, what you…… -
Java – elasticsearch – using filterbuilders
I'm new to elasticsearch and couchbase I'm building a sample Java application to learn more about elasticsearch and co…… -
Sort the array by length, then alphabetically
How do I arrange arrays alphabetically? I have a list of numbers that I'm getting: Something1 Something10 Something2 S…… -
Java – no JPA transaction is currently active
It is implemented using JPA and eclipse link Code: try{ if(!em.getTransaction().isActive()) em.getTransact…… -
Java – let Android applications listen to shared links
When a user shares a URL from another application (such as a browser), I want my Android application to appear as an o…… -
Java – how to quickly create instances in CDI
Let's suppose I have a car class In my code, I want to create 10 cars The car class has some dependencies on the @ inj…… -
Java – server 415 response code
I'm using jetty web server and Jersey for rest processing I define: @POST @Path("/sendMessage") @Consumes ({MediaType.……