包含标签：Java 的文章
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Java 8 streaming to file
There is already an answer to this question: > modify file using files lines1 For reading, there is a good file Lin…… -
Implementation of HTTP file queue Download with Java
Preface many users may encounter such a situation: they find a good resource on the website, but the resource is divid…… -
Java – enter stream Read returns 0 or – 1?
What's the difference? byte[] buffer = new byte[1024]; // this: if (inputStream.read(buffer) > 0) { /*...*/ } // an…… -
Generic default constructor Java
public class Sample<T>{ public class Sample<T>{ T data; Sample(){ data = ????; } } How do …… -
Detailed explanation of the definition and use of variable length parameters in Java
Java can define variable length parameters (varargs) for methods to match an uncertain number of parameters, which are…… -
Ten skills of connecting Oracle database through JDBC
The Java database connection (JDBC) API is a series of interfaces that allow Java programmers to access the database, …… -
Java – compilation errors using NetBeans 8 but lower than lambda expressions
I'm using NetBeans 8 When my code contains a lambda expression and I try to compile, I receive the following error mes…… -
Java – advantages and disadvantages of data sorting in database?
Let's say I have a table with a varchar type table And I need to get the data in the table alphabetically from the fie…… -
Java – how to enable batch insert in Hibernate?
Using hibernate, when I try to enable batch insert <property name="jdbc.batch_size">50</property> I get th…… -
Comparison and difference between Java int and integer
Difference between Java int and integer: The difference between int and integer is the difference between the basic da…… -
It is equivalent to map (from Haskell) in Java 7
In Haskell, there is a function called map, which uses a class a list and a function f to map the value of type A to t…… -
External optimized configuration method of configuration file after spring boot jar package
Without any processing, spring boot will use the application. In the project by default Properties or application YML …… -
How to pass an object array as a parameter in Java
This method is public static void method (object [] params)). Should I call it under the following circumstances? >…… -
Linked list and bidirectional linked list in Java language
Linked list is an important data structure, which plays a very important role in program design. C language and C + + …… -
How to disable log4j logging from Java code
I use log4j to write to the old version Library of logs My default log4j The properties file points logs to the consol…… -
Java – how to attach an HDFS file (3 nodes or less) to a very small cluster
I tried to attach files on HDFS on a single node cluster I also tried a 2 - node cluster with the same exception In HD…… -
Which is the fastest way to access native code from Java?
Which is the fastest way to call a native library from Java? What I know is >Nativecall – we currently use > JNA…… -
Migrate Weblogic EJB program to JBoss
WebLogic Server is a top-level business application server. However, for small-scale developers, JBoss, a standard bas…… -
Java – how to filter strings using numbers, dots, and commas?
OK, so there's a long string. I want to delete everything in it, except decimal numbers, commas and dots, I tried: str…… -
Java int… Array symbol
As I've seen in method parameters before, it seems that any number of parameters are allowed to fill the array created…… -
Java – spring boot deployed in Tomcat provides 404 but works independently
I've been testing spring boot with embedded Tomcat for about a month to build a rest API Everything is fine We now wan…… -
Java – recursive type parameters for almost circular type binding
I have the following two interfaces: /** * A marker interface to denote that an object implements a view on some othe…… -
Java – detect jsplitpane separation motion
Is there any way to detect when to move the jsplitpane separator? Is there any way to add a divider motion listener? J…… -
Check positive or negative without using conditional statements in Java
I had an interview question last week: I need a function to print whether a number is positive or negative without usi…… -
Java implements the compression of multiple files into compressed packages
This example shares the specific code of multiple file compression in Java for your reference. The specific contents a…… -
Java 8 Application on EC2
I wonder if anyone knows if it is possible to install Java 8.0 on EC2 instances My application is packaged as a fat ca…… -
Java – how to add the contents of a list to the end of another list?
How to append the contents of a list to the end of another list? Solution List. addAll() -
Lightweight web services produced in Java (no application server)
Is there any Java library that allows you to build a simple stand-alone Web service server without any application ser…… -
Java – JList – when you click a selected item, deselect it
If I click on the selected index on JList, I want it to be deselected In other words, clicking on the index actually s…… -
Examples of abnormal behavior in Java
Can anyone explain why the following if statement evaluates to false? public void addShapeToWhiteboard(PolyLine shape)…… -
Java – rxtx on MAC – serial port is already in use
I installed rxtx on my Mac Both Java jar program and Arduino software regard Arduino as a USB modem if they both claim……