包含标签：Java 的文章
-
When a decimal point is given, the Java program crashes, but int is used
When the user enters an integer, the program runs smoothly, but when the user enters the last decimal number, the prog…… -
Java cannot find method main
I have a simple hello world plan trouble ha ha! I hope someone can understand this Therefore, the errors received are …… -
Polymorphism and interfaces in Java (you can use polymorphism to implement interfaces… Why?)
In the real world, what types of problems do people use it to solve? Can I see the sample code for these collaboration…… -
java. lang.ClassCastException：android. widget. LinearLayout $layoutparams cannot be cast to Android support. v7. widget. RecyclerView $LayoutParams
I have a recyclerview with LinearLayout LinearLayout consists of nine buttons Before making some changes, I can click …… -
Java cast to enum type problem
There were some problems converting Java long type to enum type, and a solution could not be found This is what I'm us…… -
Does Java contain a data type named “item”?
I'm reading the book algorithms. They mentioned the data type item However, I can't find it in any API Is there an "it…… -
Java socket server lags behind two clients
I'm a newcomer lol to stackoverflow, but I've always relied on this website I have a question about the java socket se…… -
Java – Maven ‘deploy’ causes code repackaging (bad signature) after signature operation
I want to deploy an artifact to the sonatype OSS repository The signature is invalid when deploying with the following…… -
The override equals method to compare multiple fields in Java
What is the best way to rewrite the equals method in Java to compare multiple fields? For example, I have four objects…… -
Java – how to filter by entity class attribute in Hibernate
I use hibernate in Java to map classes to database tables I have a personnel list. Each item has many pets and each pe…… -
Is java – spring too complex for JDBC operations?
I've just seen spring's JDBC framework - it looks like a learning curve - and I still can't find the latest quick star…… -
Java – generate name arrangement and database
Using "generating all permutations of a given string" as a reference, I try to have my program (when a name field is d…… -
Java – images that need to select code from the camera and Gallery – applies to all Android phones
private void selectImage() { private void selectImage() { final CharSequence[] items = { "Take Photo","Choose fro…… -
Block / disable JavaFX 2 WebView right click
I am looking for a way to prevent / disable JavaFX scene. web. Right click in WebView More specifically, I don't want …… -
Java – static variables and methods
I encountered a class set like this: public class MyClass { private static boolean started = false; private MyCl…… -
Leiningen Java agents does not work in uberjar
In my leiningen project, I have the following configurations: :java-agents [[com.newrelic.agent.java/newrelic-agent "3…… -
Java – check if the file is open
I need to write a custom batch file renamer I've done most of the work, except I can't figure out how to check whether…… -
Java – endpoint with OAuth: get the current ClientID
I just started using endpoints in Google App Engine, and everything seems to work well My API rejects non whitelist cl…… -
How to substring a string to the second point (.) in Java?
I have a string with many segments by dots (.) Separate as follows: I want to get a substring up to the second point, …… -
Java – type set is not universal; It cannot be parameterized
My eclipse faces this strange problem Type set is not universal; It cannot be parameterized with the parameter < in…… -
Java – how to create a new activity, I can choose to add a new project from the database?
I created the database after this tutorial, and I created a button in the main activity that takes the user to another…… -
Java – token “;” Syntax error on, {expected after this tag
Why is there a syntax error in this line (as shown below) package org.temp2.cod1; import java.security.*; import javax…… -
Java – WebSockets, play framework and actor
I need to inform all users about adding new records to the database > Application. Java – here I put the socket han…… -
Java – how to get content in Web crawl
Hi! I'm trying to implement this pseudo code for spider algorithm to explore the network I need some ideas about the n…… -
Java – spring, oauth2: Lost authentication details after refreshing token
I have two spring applications: authentication services and business services When a web service user authenticates on…… -
Java – Import Hadoop source code into IntelliJ
Does anyone know what to do? I read import Maven dependencies in IntelliJ idea But it doesn't work thank you Solution …… -
Java – the typed method in the jparepository does not return the correct type
I have a method in the jparepository that should return a list of JPA entities: @Entity public class SomeEntity { …… -
Java – expose implementation information to callers?
In JLS capture conversion, it discusses two methods of writing reverse method signatures: > public static void reve…… -
Java – why do you accept static final variables in local classes?
I use Google to search widely but to no avail I can't seem to revolve around this concept Why do local classes accept …… -
Java – Concurrency: how do I use incoming and outgoing queues to implement an executable?
It is well known that ThreadPoolExecutor uses some blockingqueues as queues for incoming tasks What I want is for the …… -
Java – spark accumulator reset
There is no way to reset the spark accumulator through the driver so that the actuator accumulator will also be cleane…… -
Java – in a single build Compiling source code with two different sets of dependencies in gradle
I'm using the gradle script. I have two separate cognitive lists and other dependency lists Listing 1: cognos:a:10.1.1……