包含标签：Java 的文章
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Perform: creates a local backup of the current pending list
In perforce, I have a list of files to change Now I want to go back to the base, but I haven't loosened my changes, so…… -
Java – multithreaded gae servlet to handle concurrent users
I want to multithread my gae servlet so that the same servlet on the same instance can process up to 10 concurrent req…… -
Opencv – how to interpolate between data points?
I am developing a software using OpenCV and QT to draw data points I need images that can fill in incomplete data I wa…… -
Java – enable lambda expressions
In the program entities.stream().filter(m->m.getId()==id).findAny().get(); Where entities are lists Set all librari…… -
Java – get only the date of the timestamp
This is my following function. I'm passing a timestamp. I just need to return the date from the timestamp, not the hou…… -
Java – how to create MVC based applications without using frameworks
Struts, spring and several other frameworks implement MVC architecture to separate the representation of information f…… -
Java – set the default value to a variable when deserializing with gson
I'm trying to convert JSON to Java objects When a value of a pair is empty, some default values should be set This is …… -
Java – why are private fields on enumeration types visible to containing classes?
public class Parent { public class Parent { public enum ChildType { FIRST_CHILD("I am the first."),SECON…… -
Declare a byte array in Java
How to declare a finite byte array? That's what I'm thinking, but it doesn't work. I can't find anything private Integ…… -
Java – how to put scanner input into an array… For example, several numbers
Scanner scan = new Scanner(system.in); Scanner scan = new Scanner(system.in); double numbers = scan.nextDouble(); doub…… -
Java – JPS does not display Tomcat processes
I run Tomcat 6.0 on Ubuntu 10.10 31, and use tge sun JDK (java-6-sun) Although Tomcat is running, when I run JPS (Java…… -
java. Lang.illegalaccesserror: attempt to access field concreteentity. From class entity instance
OK, so here's the deal I'm trying to access concreteentity Instance, which is the default field of the access type exi…… -
Java – Jersey 2.7 has problems running on Apache Tomcat 7.0
I am using Apache Tomcat 7.0 and eclipse to create a sweatshirt application import javax.ws.rs.GET; import javax.ws.rs…… -
Java – how to convert an 18 Bit numeric string to BigInteger?
Someone can help me convert an 18 digit string number into BigInteger in Java Namely; The string "0x999999999999999999…… -
Java – cannot catch constraintviolationexception
I can't seem to catch the constraint violation exception, but I see it in the log entity @Column(unique = true) privat…… -
Java – eclipse Juno: unassigned closable value
I wonder why I got the warning of this new eclipse Juno, although I think I closed everything correctly Can you tell m…… -
Java – singleton mode
Recently, I asked questions about Java in an interview with the following code. Because I just started using Java and …… -
Java – error reading type of elexception
When I showed my JSP page and tried to call a defined getCurrentlocation () function in the Person type, I received an…… -
Java / Swing: convert text string to shape
I want to convert some arbitrary text into shape (Java. AWT. Shape), and then stroke / fill the shape What shall I do?…… -
What is the best way to inform administrators about new exceptions to Java applications?
My question is what is the best way to track exceptions from application administrators (for maintenance purposes, not…… -
Java – Android: how to set the default value of parameter variables
Android features PHP example: Function haha ($a = "test") {print $a;} The question is how to do it in Android public v…… -
The name of parameter binding cannot be null or empty! For named parameters, you need to use @ param to query method parameters on the Java version
This is over, but my problem is different This is a problematic jpql query: @Query("SELECT NEW com.htd.domain.ShopOrde…… -
Java – the simplicity of OO for user interaction
As a summer project, when I have some uni downtime, I'm going to build a monopoly game This question is more about the…… -
Java – quartz scheduler sample program gives an error
I tried to run on roseindi Net I have two classes in my java projecy and quartz version 1.6 - all. In the project libr…… -
Math in Java What is the algorithm behind pow()?
I've just started using Java. As my first project, I'm writing a program to find the root of a given number (in this c…… -
Java EE replaces Scala?
Many Java x Scala comparisons seem to focus only on languages (syntax, collection APIs, actors, etc.), but what about …… -
How should I name my java 9 module?
Suppose I have a libraryid = org ABC and artifactid = libraries of MyLibrary The recommended name for the module name …… -
Java exception handling – style
Historically, I have written my exception handling code: Cursor cursor = null; try { cursor = db.openCurso…… -
Java loop efficiency
I compared the efficiency of nested for, while and do while loops in Java, and I encountered some strange results that…… -
Java – is it OK to have an ’empty’ class that extends another class?
Suppose I have a class foo, which has a pile of logic, and another class bar is basically the same However, since Foo …… -
Java – Eclipse console exception color
This seems simple, but I can't seem to find a setting in eclipse to change it I like my console with dark white text I…… -
Java – how to: access restful web services for beginners using play framework 2.1
Many concepts and techniques I use in this problem are quite new, so I hope to know and help beginners in the communit……