包含标签：Java 的文章
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Jar – getting started with JavaCC
I'm new to JavaCC and can't figure out how to make it work I am using Mac OS X, and I have javacc-6.0 installed Zip an…… -
Java – elasticsearch uses the jest API to scan and scroll
I am currently working with jest: Can I scan and scroll using this API? http://www.elasticsearch.org/guide/reference/a…… -
Multithreading – synchronize () suspends the thread
I wrote a DLL library in Delphi, which created multiple threads Let me describe the problem step by step I'm sorry to …… -
Java – use collection Stream is dynamically grouped by specific attributes
I tried to group a list of objects by multiple attributes by using java 8 collection stream This is very effective: pu…… -
Java 8 – functional interfaces and abstract classes
See English answers > java 8: virtual extension methods vs Abstract Class5 According to my understanding, these int…… -
Java – Preparedstatement does not read all parameters of PostGIS geography
I have the following JDBC code Please note that I am trying to use PostGIS geographic location: PreparedStatement stmt…… -
Java – how do you call other methods in an enumeration?
enum Enum1 enum Enum1 { BIG(8),HUGE(10) { public String getName() { return "Huge";…… -
Java – how to prevent concurrency in Web Service APIs?
We have three web services (/ A, / B, / C), where each service maps to a method (go ()) in a separate Java class (clas…… -
Java – find the set of integers where two linear equations hold
What algorithm can I use to find the set of all positive integer values of N1, N2,..., N7, where the following inequal…… -
Java – Maven woes: Maven clean plugin not found in repository
Sigh Use Maven 2.2 1. Suddenly, it cannot resolve Maven clean plugin Really, how crazy is it that building tools need …… -
Exception in thread “main” Java lang.NoClassDefFoundError：org/sqlite/NativeDB
I'm trying to run a simple SQLite example on the Mac I'm pretty sure the code works well on windows But not on the Mac…… -
Java – how do I use class files?
I'm new to Java. I want to know how to import the class file into NetBeans and use it I know class files are machine -…… -
Java – throw an exception during the try with resources declaration
Suppose I have the following try with resources statement in Java: try (MyResource myResource1 = new MyResource(); MyR…… -
How to capture the exit status of shell commands in Java?
I am creating a JUnit test file for my csvreader I am reading the contents of the CSV file and writing the contents to…… -
Java – from intent Createchooser gets the selected application
I tried to capture intent The results of createchooser to understand the application that users choose to share I know…… -
Java – pass additional (second) parameters to guava predicate
I have this predicate to filter my task objects by date: Predicate<Task> startDateFiltering = new Predicate<T…… -
Java – how to prefetch Oracle sequence id-s in a distributed environment
I have a distributed Java application running on five application servers, all using the same Oracle 9i database runni…… -
Compress and unzip folders and files using java
If my application wants to use java to compress resultant files (filegroups) dynamically, what are the options availab…… -
Java – how do I store passwords securely in memory when creating accounts?
Our web - based application uses the password specified during account creation to bind user accounts to users For Jav…… -
Java IPv6 address string to byte
How to convert a string containing IPv6 machine packet targets into a 16 byte array? I know GetBytes and encoding, but…… -
Java – how to add a new element to varargs?
I have a way public boolean findANDsetText (String Description,String ... extra ) {@H_404_3@ 在里面我想调用另一个方…… -
Java – LinkedList – performance decreases with the number of different classes in it
The following code measures the time it takes to call the method handle (object o) 100 times from the interface handle…… -
Java – the default date year is set to 1970
I need to parse a string with no year set But when I output the date, it will increase the year. I tried to set the ye…… -
Java – how to get foo Object Value?
(this is a follow-up to my previous question) I have a foo Object, foo Foo < T > is an interface How to get hid…… -
Java – UML represents an anonymous class in the class diagram?
How to represent Java anonymous classes in UML class diagrams? Solution Illustration: resources: >UML class diagram…… -
Java adds a string to a string array
See English answer > java dynamic array sizes? 18 static String[] ipList = {"127.0.0.1","173.57.51.111","69.696.69.…… -
Name conflict in Java import
Unless we change the compiler, Java missed importing x as y syntax, which would be very useful in my case: at this mom…… -
Java – liquibase attempts to apply all changesets, even if the database exists
I use spring - liquibase to perform any migration required to stage the database applicationContext. XML looks like &l…… -
Java – calculates the number of “trues” of N Boolean values
Boolean a,b,c,d; Boolean a,b,c,d; I want to count the number of trues. Each result should have its own associated acti…… -
Is java suitable for “Web 2.0” applications?
A few days ago, I chatted with someone who suggested that rails and PHP are the most suitable platforms for web applic…… -
Java – optimal time complexity of string reverse operation: O (n) or O (n / 2)?
The following is a snippet of string inversion private static String reverseString(String originalString){ char arr[]=…… -
Java – when to call getwarnings() on connections, statements, and resultset using JDBC?
In JDBC, connection, statement and resultset types all have getwarnings () method, which is specified to generate the ……