包含标签：Java 的文章
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How to use the same add () method in two different classes
Is there any way you can use the same add () method between two different classes (add content to the array)? For exam…… -
Java – using action tabs and WebView
I want to have my application to display tabs at the top of the screen (make it work) and set up WebView. XML in the X…… -
Reading streams over HTTP networks using Java I / O
Now I'm trying to improve the performance of Java I / O I have some crazy questions about using Java I / O to read / w…… -
Java – smack 4 throws “sslhandshakeexception: validatorexception: suncertpathbuilderexception” on the connection
For the integration test of my XMPP stack, I set up a vysper server (0.7) on localhost Question: Caused by: javax.net.…… -
Java – is it a good habit to use atomicinteger as an alternative to variable integers?
I have the following situations: public void callMe() { AtomicInteger howManyOdds = new AtomicInteger(0); AtomicInte…… -
Mirrored shapes in Java (swing)
hello everyone, I have a lesson about drawing and manipulating shapes in swing GUI I have a problem. When I try to mir…… -
Is there an activity failure that occurs in concurrency in Java 8
I will try to reproduce the code mentioned in the following valid Java (Second Edition) public class StopThread { p…… -
Java – use drawLine to extend the graphics class (double, double, double, double)
Question: / / where the story begins You can see it's terrible Actual prototype: public abstract void drawLine (int x1…… -
Displacement differences in Java and C – how to reconcile
I have some code in C, I'm trying to migrate to Java, and there's a problem I can't solve@ H_ 301_ 7@ Solution C code …… -
Java – defaulttablemodel does not return the value in the datavector
My question is related to JTable and defaulttablemodel DefaultTableModel model=(DefaultTableModel)jTable1.getModel(); …… -
Why doesn’t Java seem to respect my classpath?
I have jt400 in my directory jar： /path /jt400.jar /Test.java Test. Java content: import java.sql.*; //impor…… -
Java – the scan count returns a number significantly less than the dynamodb table
I'm running a sample Java program to query the dynamodb table, which has about 90000 items, but when I get the scan co…… -
Java – find integer patterns in arrays
For this problem, I will write a method called mode, which returns the most common element in an integer array Suppose…… -
Java – requires multiple input from the user
I'm trying to write a program that keeps asking users for an integer until they enter a non integer value, and the pro…… -
Java – JBoss wildly and Jersey web service deployment error jbas011859: naming context is read-only
I am using Jersey servlet (1.18.1) to process Java Web services projects When I deploy my ear file to JBoss wildfly (8…… -
Java – a case insensitive sort set – maintains the same string in different cases
Today I have a case insensitive sort set, such as: Set<String> set = new TreeSet<>(String.CASE_INSENSITIVE…… -
Why Java io. File does not implement autoclosable?
See English answer > why Java io. File doesn’t have a close() method? 5 try (File file = new File(FILE_NAME)) { …… -
Java – how Jenkins finds out if a given slave server is running a job
I have this unique requirement to check whether a given node is running a job I'm thinking about using groovy because …… -
Java – GCM: how to send heartbeat to GCM server
I want to send a heartbeat from my application to the GCM server, so the connection will remain active How can I do th…… -
Volatile in double check locking in Java
See English answers > why is volatile used in double checked locking class Foo { private volatile Bar _barInsta…… -
Java – extract the first letter from each word in the sentence
I have developed a voice to text program where users can say a short sentence and insert it into a text box How do I e…… -
How to use Java Time parses the date in the string from the year and week
In old Java, I could do this: System.out.println(new SimpleDateFormat("yyyy w",Locale.UK).parse("2015 1")); // shows M…… -
Can an object array be regarded as a collection of objects in Java?
The collection definition of Oracle site is: A collection — sometimes called a container — is simply an object that gr…… -
Java – GlassFish 4.1 deployment failed on eclipse Luna using JDK 8
You cannot use JDK 8, GlassFish 4.1 to deploy GlassFish on eclipse Luna jsp. Exception stack trace: org.glassfish.tool…… -
Java optional question, did I do this?
I have a "bad habit" of throwing zeros somewhere, such as enumerator when something doesn't exist Example: private enu…… -
Distributed HashMap or distributed information storage in Java
Does anyone know a good java framework for distributed hash mapping (DHT)? I used overlay Weaver some time ago, but th…… -
Java – why didn’t this gridbaglayout appear as planned?
I try to achieve the final result required by setting an arbitrary width in gridbaglayout For reference, here is: This…… -
Java ternary operator syntax
See English answers > terminal operator, syntax error when using assignment In the first case, the ternary operator…… -
Java – in POM The Proguard configuration file is included in the XML
I tried to confuse Java class files I've used ant before, so I've built it through 'build XML 'contains the following …… -
Java – thread safe enum singleton
Enumeration helps create singles I know enumeration methods are not thread safe, so I try to make them thread safe Any…… -
Java – additional conditions for adding querydsl to on
Can I execute the following queries in querydsl? SELECT p.* FROM parts_table p LEFT JOIN inventory_balance_table i ON ……