Java 归档 - Page 103 of 655

Java – why convert up a class that doesn’t change the rewriting method?

See English answers > overriding member variables in Java 10 class BritishPerson { public String name = "A brit……

Java

2020-08-26

Java – spring MVC @ requestbody map optional

I have a rest controller for this method: @RequestMapping(value = "",method = { RequestMethod.POST },produces = { Medi……

Java

2020-08-26

Java – what’s the point of a clonable interface?

What's the point of a clonable interface in Java? The core object in Java has a clone () method Can you override that ……

Java

2020-08-26

Does Java automatically optimize loops for multi-core processors

A developer told me today that Java (or JIT) can automatically optimize the execution of the for loop, so that it can ……

Java

2020-08-26

Java – a method that does not return a value when “return” is encountered in “if”

My problem is that this method "islargest" encounters "return true;" Time does not end Even if the condition in "else ……

Java

2020-08-26

Let the presentation layer (JSF) handle business exceptions from the service layer (EJB)

Update the EJB method of the provided entity (using CMT): @Override @SuppressWarnings("unchecked") public boolean upda……

Java

2020-08-26

Can Java string literals be garbage collected? If so, how to prove it?

Can Java string literals like "ABC" be garbage collected? If so, how can we programmatically prove that they are GCed?……

Java

2020-08-26

Java – get localdatetime from seconds, including time zone

I have time from our computer "day 0" (at midnight on January 1, 1970) in a few seconds. I want to convert it to a loc……

Java

2020-08-26

Java – eclipse debugger does not stop at a conditional breakpoint

I have this java code in eclipse and I want to debug it This is the code: public Double repulsion(Node n1,Node n2) { ……

Java

2020-08-26

In Java Correct method of setting read-only path in NiO 2

I'm confused... According to this Java page file The setreadonly() function is now a "legacy" function and should be c……

Java

2020-08-26

java. nio. file. Nosuchfileexception: why NiO did not create a file

I'm using Java nio. File package and try to create a file using the following code private static void printReport(Str……

Java

2020-08-26

Java – there is no OpenGL context in the current thread

I'm following the tutorial on youtube, but I've encountered an OpenGL problem that I can't solve I don't know how to s……

Java

2020-08-26

Java – the file was not found when trying to compile the telegraph source code

I'm trying to build an application like telegraph I downloaded their source code（ https://github.com/DrKLO/Telegram ……

Java

2020-08-26

Java InputStream closed in thread

I tried to read from the InputStream in the thread The class that thread should run looks like this static private cla……

Java

2020-08-26

Java – this method contains redundancy checks for known non null values of the constant null

javac 1.7.0_79 javac 1.7.0_79 findbugs 3.0.0 Hello, I am using findbugs and I received this report with an error: This……

Java

2020-08-26

Java – try sliding windows

I try to print images like sliding windows I can't do it right Therefore, when the sliding window size is 1, it should……

Java

2020-08-26

Java – no suitable method for sort (int [], >) found

Algorithm problem: given a list of nonnegative integers, arrange them into the largest number For example, given [3,30……

Java

2020-08-26

Java – use Jackson to generate CSV without quotation marks

I'm using Jackson CSV to generate CSV files, but I want references everywhere I can't find any information on apidoc C……

Java

2020-08-26

Java – Android studio – change the default code style

I'm used to writing code in this way: private String blabla() { return "bla"; } However, Android studio has adjust……

Java

2020-08-26

Java heap memory usage fluctuates

Dear developer, I encountered heap memory usage problems in Java applications The application itself only accepts sock……

Java

2020-08-26

Get the first and last time (in milliseconds) using the Java 8 time API

I converted my time calculation from self implemented code to Java 8 time API I need from Java time. Year or Java time……

Java

2020-08-26

Java – hibernate / spring – rollback transaction in transaction

In view of this example code: public class MyServiceImpl implements MyService { @Transactional public void myT……

Java

2020-08-26

Java – the symbol ‘asynctask’ cannot be resolved in Android studio

I have a class that extends asynctask in Java, but Android studio will fail to resolve the symbol asynctask class GcmR……

Java

2020-08-26

Java – if you reopen the application, SharedPreferences is not saved

My sharing preferences will not be saved. If I reopen my game and the previously saved SharedPreferences data is not l……

Java

2020-08-26

How to achieve proper layer separation in xpage (that is, talking to Java objects instead of domino views and domino documents)

I am trying to implement appropriate layer separation in my xpage project Ideally, I try to reach the point where XML ……

Java

2020-08-26

Java – how do I use null’s to sort a collection and then reverse the list?

So I'm using a list of dates, some of which are "" or null I used the answer how to handle nuts when using java collec……

Java

2020-08-26

Address mapping of Java cassnadra object freeze annotation > >,

I tried to insert data into Cassandra (2.1.9) create table user{ name text,addresses map<text,frozen<lis……

Java

2020-08-26

Java – valid anagrams code – one of 32 cases failed Through 31 cases

I tried to write a little code for the puzzle, and then I wrote onw String s = "anagram"; String t = "nagara"; Map<……

Java

2020-08-26

Java – what’s the difference between Hudson and Jenkins?

How to choose between Hudson and Jenkins? [closed] 8 Please advise me which is most suitable for Java CI construction ……

Java

2020-08-26

Java – spring MVC hibernate encoding / multi line SQL import

I'm studying spring MVC, When the project starts, I have set up the database to import the default SQL and use hiberna……

Java

2020-08-26

Java – unable to parse com parse. ParseQueryAdapter

My current settings: >Operating system: Windows 7 > ide: Android studio (with updated SDK) > parse jar (V 1.1……

Java

2020-08-26

Java – hibernate – OGM [persistenceunit: person] cannot build hibernate sessionfactory

I received the following error Utilty. java public class Utility { private static EntityManagerFactory entityManag……

Java

2020-08-26

搜索内容

Java – why convert up a class that doesn’t change the rewriting method?

Java – spring MVC @ requestbody map optional

Java – what’s the point of a clonable interface?

Does Java automatically optimize loops for multi-core processors

Java – a method that does not return a value when “return” is encountered in “if”

Let the presentation layer (JSF) handle business exceptions from the service layer (EJB)

Can Java string literals be garbage collected? If so, how to prove it?

Java – get localdatetime from seconds, including time zone

Java – eclipse debugger does not stop at a conditional breakpoint

In Java Correct method of setting read-only path in NiO 2

java. nio. file. Nosuchfileexception: why NiO did not create a file

Java – there is no OpenGL context in the current thread

Java – the file was not found when trying to compile the telegraph source code

Java InputStream closed in thread

Java – this method contains redundancy checks for known non null values of the constant null

Java – try sliding windows

Java – no suitable method for sort (int [], >) found

Java – use Jackson to generate CSV without quotation marks

Java – Android studio – change the default code style

Java heap memory usage fluctuates

Get the first and last time (in milliseconds) using the Java 8 time API

Java – hibernate / spring – rollback transaction in transaction

Java – the symbol ‘asynctask’ cannot be resolved in Android studio

Java – if you reopen the application, SharedPreferences is not saved

How to achieve proper layer separation in xpage (that is, talking to Java objects instead of domino views and domino documents)

Java – how do I use null’s to sort a collection and then reverse the list?

Address mapping of Java cassnadra object freeze annotation > >,

Java – valid anagrams code – one of 32 cases failed Through 31 cases

Java – what’s the difference between Hudson and Jenkins?

Java – spring MVC hibernate encoding / multi line SQL import

Java – unable to parse com parse. ParseQueryAdapter

Java – hibernate – OGM [persistenceunit: person] cannot build hibernate sessionfactory

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