Java 归档 - Page 323 of 655

When reading from a file, Java net. URL cache

It seems that Java is saving some kind of cache for URLs (& files) new java.io.BufferedReader (new java.io.InputSt……

Java

2020-02-10

Java – zoneddatetime as pathvariable in spring rest requestmapping

I have a rest endpoint in my spring application, as shown below @RequestMapping(value="/customer/device/startDate/{sta……

Java

2020-02-10

Java – alternatives to Commons beautils

I am looking for an alternative to public beautils I want a small independent alternative that will lead to no / minim……

Java

2020-02-10

Java – get value from JTable cell

I listed editable columns in JTable When I finish editing the cell, I want the old value of a cell Solution You can ge……

Java

2020-02-10

Java – condition – should be unlocked before waiting?

Can you tell me if I should release the lock before waiting for the condition? try { lock.lock(); while (isNot……

Java

2020-02-10

Java – the correct way to find enumerations by value

I have several Java enumerations that look like the following (edit for confidentiality, etc.) public enum Presentatio……

Java

2020-02-10

What is the c# equivalent of Java’s class type?

In Java, it is convenient for class to use the generic parameter X But c#'s type class doesn't have this So in c#, how……

Java

2020-02-10

Java – check the current exception in the eclipse debugger?

If a Java application throws an unhandled exception, it will cause eclipse to break at that time Is there any way to c……

Java

2020-02-10

Interface array in Java

I have an interface a: interface A { } Then I have a level B: class B implements A { } Then I have a way to use the a ……

Java

2020-02-10

JavaFX listview multi selection

I want to select multiple items from listview It responds to mouse clicks I tried this: selectedLogsList.addAll(logsLi……

Java

2020-02-10

Java – can final be removed from the class definition for backward compatibility?

I am currently reading effective java written by Joshua Bloch. Item 17 is "inherit the design and documentation, or pr……

Java

2020-02-10

Java – use the slidinguppanel library to keep the bottom view

I used slidinguppanel Library in one of my media player applications In the slide panel, I have media controls. I want……

Java

2020-02-10

How is the following java code useful in autonomic computing?

In the book I'm learning, they show this java code: Class c = ClassLoader.getSystemClassLoader().loadClass(name); Clas……

Java

2020-02-10

Java – Common underflow and overflow exceptions

I tried to get an overflow and underflow exception in Java, but I couldn't get any beautiful tutorials Specifically, I……

Java

2020-02-10

Equivalent to akka, but Net (concurrency framework)

Is there the equivalent of akka Net? http://doc.akka.io/use-cases Solution You can have a look https://github.com/phat……

Java

2020-02-10

Java – how to define whether the determination point is in the area lat, long?

I have an area defined by a set of geographical locations. I need to know whether a coordinate is in this area public ……

Java

2020-02-10

Java – type prompt functions in clojure

I tried to solve the reflection warning in clojure, which seems to be due to the lack of type inference for the functi……

Java

2020-02-10

Java – what happens if the executorservice queue is full

I have a large file up to TB. My task is to process it line by line Each line should take 5 seconds to complete To imp……

Java

2020-02-10

What does colon mean in Java?

What does a colon mean in Java? I have this: public static List<String> findAllAnagrams(List<String> words……

Java

2020-02-10

Java – how to create a text field that only supports numbers in vaadin

I'm using vaadin text field. I want to limit it to numbers only I tried to override setValue () and return without cal……

Java

2020-02-10

What type of Java constructor call is this?

I've never encountered such a thing. I don't know this type of coding! DefaultHandler handler = new DefaultHandler() {……

Java

2020-02-10

Java – JPA last update timestamp

I'm playing JPA (eclipse link is specific) The following entities have one What is the policy for automatically updati……

Java

2020-02-10

How do negative operands of bitwise operators work in Java?

-4 & -5 = -8 // How? -4 & -5 = -8 // How? -4 & 5 = 4 // How? I need to explain how to achieve the above re……

Java

2020-02-10

Java – what is the appropriate way to handle warnings: “the expression of X is loaded into X”

I'm not going to close or ignore the expression of type X is boxed into x? Warnings in I wonder if the correct way to ……

Java

2020-02-10

Java – how to prevent hibernate from eagerly obtaining many to one associated objects

I have an attribute in a domain object that is declared in a many - to - one element The basic syntax of this attribut……

Java

2020-02-10

Java – determines whether a file is a connection (in Windows)?

I've been looking for a way to determine whether a file is a connection point, and I haven't found any satisfactory an……

Java

2020-02-10

Java – draw text in JPanel

I'm looking for the most basic description of how to draw text in JPanel I know there are a billion tutorials, but non……

Java

2020-02-10

Java encryption and decryption tool class, supporting RSA and AES

Here is the programming house jb51 CC collects and arranges code fragments through the network. Programming house Xiao……

Java

2020-02-09

JAVA memory caching tool guava loadingcache usage parsing

This article mainly introduces the usage analysis of JAVA memory cache tool guava loadingcache. It is introduced in gr……

Java

2020-02-09

Detailed explanation of JMeter calling java script process

This article mainly introduces the detailed explanation of JMeter calling java script process. It is introduced in gre……

Java

2020-02-09

Java data encapsulation tree structure code example

This article mainly introduces the Java data encapsulation tree structure code example. The example code is introduced……

Java

2020-02-09

Two way linked list implementation java code

Here is the programming house jb51 CC collects and arranges code fragments through the network. Programming house Xiao……

Java

2020-02-09

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When reading from a file, Java net. URL cache

Java – zoneddatetime as pathvariable in spring rest requestmapping

Java – alternatives to Commons beautils

Java – get value from JTable cell

Java – condition – should be unlocked before waiting?

Java – the correct way to find enumerations by value

What is the c# equivalent of Java’s class type?

Java – check the current exception in the eclipse debugger?

Interface array in Java

JavaFX listview multi selection

Java – can final be removed from the class definition for backward compatibility?

Java – use the slidinguppanel library to keep the bottom view

How is the following java code useful in autonomic computing?

Java – Common underflow and overflow exceptions

Equivalent to akka, but Net (concurrency framework)

Java – how to define whether the determination point is in the area lat, long?

Java – type prompt functions in clojure

Java – what happens if the executorservice queue is full

What does colon mean in Java?

Java – how to create a text field that only supports numbers in vaadin

What type of Java constructor call is this?

Java – JPA last update timestamp

How do negative operands of bitwise operators work in Java?

Java – what is the appropriate way to handle warnings: “the expression of X is loaded into X”

Java – how to prevent hibernate from eagerly obtaining many to one associated objects

Java – determines whether a file is a connection (in Windows)?

Java – draw text in JPanel

Java encryption and decryption tool class, supporting RSA and AES

JAVA memory caching tool guava loadingcache usage parsing

Detailed explanation of JMeter calling java script process

Java data encapsulation tree structure code example

Two way linked list implementation java code

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