Java 归档 - Page 301 of 655

Java – singleton mode

Like my previous question, this question refers to effective Java I have many sub - questions this time >Privileged……

Java

2020-02-23

. Net – how to stop a worker thread in a multithreaded windows service where the service is stopped

I have a Windows service that uses a producer / consumer queue model to process tasks in queues with multiple worker t……

Java

2020-02-23

Java – how to use jmockit to pass an empty string to a private method during unit testing?

The following is the private method in my datatap class. I tried to JUnit test this private method with jmockit – priv……

Java

2020-02-23

Java – how to put Google Adsense in GWT

Does anyone know how to put Google Adsense ads in GWT web applications? Solution You can put the JavaScript code in Ad……

Java

2020-02-23

Deleting XML nodes using a Java parser

In the following example XML, if a Java parser is used, if e = 13, how to delete the entire B node <xml> <……

Java

2020-02-23

How to use Java comparator correctly?

If I have the following courses: public class Employee { private int empId; private String name; private i……

Java

2020-02-23

Java – how to use polynomials instead of bits to improve performance?

I have a 128 bit string, and my supervisor asked me to express the 128 bits as polynomials This is a scan of the paper……

Java

2020-02-23

Java – use Jackson to map objects from specific nodes in the JSON tree

Can Jackson's objectmapper ungroup from a specific node (and "down") in the JSON tree? Use cases are extensible docume……

Java

2020-02-23

How to convert ieee-11073 16 bit sfloat to a simple floating point number in Java?

The title is self-evident: how to convert ieee-11073 16 bit sfloat to a simple floating point number in Java? Solution……

Java

2020-02-23

Draw lines on the canvas with the mouse: Java AWT

The attempt is to draw a figure (now a line) with the mouse on the AWT canvas I tried java graphics for the first time……

Java

2020-02-23

java – joda-time：new DateTime(String)vs DateTime. parse(String)

Using the joda-time-2.0 version library, I want to know which function is more suitable for building from ISO date (up……

Java

2020-02-23

Java – what should you do?

Java checked exceptions sometimes force you to catch checked exceptions that you think will never be thrown Best pract……

Java

2020-02-22

Java – countdown timer without GUI

Basically, I'm making a text-based "game" (not a game, but more a way to improve basic Java skills and logic) But as p……

Java

2020-02-22

Java – real world example of applying command patterns

Command pattern can be used to implement transaction behavior (and undo) Solution In one of our projects, we have the ……

Java

2020-02-22

Java – bad practice – the class defines CompareTo (…) and uses object equals()

Want to know what needs to be done with the listed methods public final int compareTo(final FieldDTO o) { retu……

Java

2020-02-22

Java – how do I enable Maven profiles when the build version is not – snapshot?

I'm trying to use the gitflow helper Maven plugin extension for my Maven build Therefore, I want to configure my proje……

Java

2020-02-22

Java – swing: hover over the radio button label on the translucent JPanel

In my question, I have an opaque JPanel and another translucent (translucent) JPanel, which is located on the first JP……

Java

2020-02-22

Java – severe: unable to schedule event: eventbus com google. common. eventbus. SubscriberExceptionContext

For eventbus, I merged the code in my java spring application and took full control of it, but the result did not chan……

Java

2020-02-22

Java – JUnit test method with random nature

I am working for myself on a small project and I am using it as an opportunity to understand unit testing and maintain……

Java

2020-02-22

JSF – integer gets the default value 0, which needs to be null in Java

See English answer > H: inputtext which is bound to integer property is submitting value 0 instead of null1 All I n……

Java

2020-02-22

Unit testing – unit testing is worth the effort, in a large and old (5yr) code base?

I just joined a team that has been working in the main mode for the past five years (Java, Maven based projects) There……

Java

2020-02-22

When adding another object, Java util. ConcurrentModificationException

I am experiencing this exception What's wrong with my code? public class GlennTestMain { static ArrayList<Pers……

Java

2020-02-22

Java – why do you return false and true?

public class Test { public class Test { public static final Double DEFAULT_DOUBLE = 12.0; public static final ……

Java

2020-02-22

Java – can spring MVC with JPA be used to update a subset of attributes on an entity?

I am using spring Roo, spring MVC and JPA to save MySQL database I'm new to spring MVC and Java, but I work with cake,……

Java

2020-02-22

How to use Java math Commons curvefitter?

How do I fit a function to a set of data using math Commons curvefitter? I was told to use curvefitter with Levenberg ……

Java

2020-02-22

Java – stream lists are grouped

I'm looking for refactoring how to use streams in some of my code The first example is my current practice The second ……

Java

2020-02-22

Java – performance of log4j

I am developing a web application. I want to record some information to help me improve and observe the application (I……

Java

2020-02-22

java – IllegalArgumentException readExceptionFromParcel

I got this error from one of my users. I don't know how to solve it java. Lang.illegalargumentexception exception data……

Java

2020-02-22

Multithreading – what is saved in context switching?

Precisely saves and restores content in context switching between two threads >In the same process > between two……

Java

2020-02-22

Comment – @ singleton in Java EJB

I have an EJB that needs to be single and stateful because it will become a connection pool My question is: >If I d……

Java

2020-02-22

Java – the easiest way to index a collection’s attributes, which are themselves a collection

I have a list < foo > and want a guava Multimap < string, foo > we divide each tag of their collection <……

Java

2020-02-22

Java me – how to create a browser window in J2ME?

How to create a browser component in J2ME that can display web pages in applications? Is there an API available? Or is……

Java

2020-02-22

搜索内容

Java – singleton mode

. Net – how to stop a worker thread in a multithreaded windows service where the service is stopped

Java – how to use jmockit to pass an empty string to a private method during unit testing?

Java – how to put Google Adsense in GWT

Deleting XML nodes using a Java parser

How to use Java comparator correctly?

Java – how to use polynomials instead of bits to improve performance?

Java – use Jackson to map objects from specific nodes in the JSON tree

How to convert ieee-11073 16 bit sfloat to a simple floating point number in Java?

Draw lines on the canvas with the mouse: Java AWT

java – joda-time：new DateTime(String)vs DateTime. parse(String)

Java – what should you do?

Java – countdown timer without GUI

Java – real world example of applying command patterns

Java – bad practice – the class defines CompareTo (…) and uses object equals()

Java – how do I enable Maven profiles when the build version is not – snapshot?

Java – swing: hover over the radio button label on the translucent JPanel

Java – severe: unable to schedule event: eventbus com google. common. eventbus. SubscriberExceptionContext

Java – JUnit test method with random nature

JSF – integer gets the default value 0, which needs to be null in Java

Unit testing – unit testing is worth the effort, in a large and old (5yr) code base?

When adding another object, Java util. ConcurrentModificationException

Java – why do you return false and true?

Java – can spring MVC with JPA be used to update a subset of attributes on an entity?

How to use Java math Commons curvefitter?

Java – stream lists are grouped

Java – performance of log4j

java – IllegalArgumentException readExceptionFromParcel

Multithreading – what is saved in context switching?

Comment – @ singleton in Java EJB

Java – the easiest way to index a collection’s attributes, which are themselves a collection

Java me – how to create a browser window in J2ME?

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