包含标签：Java 的文章
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Java – why does the shift right operator produce zero instead of one?
I'm learning Java by myself. I practice in thinking in Java On page 116, exercise 11, you should move an integer right…… -
Java me – J2ME app and browser on mobile phone
Recently, I started to develop J2ME app prototype I noticed how difficult it is to develop a nice user interface Consi…… -
Java – what is the character char ‘0x8’?
I have a lot of data in the database When I try to read a part of the data, generate some XML and send it to the web s…… -
Java – find hash table with maximum size
I have the following data structures: Map<Integer,Map<String,Double>> ---------------- | | a 2 | |…… -
Java – how to set the screen / window size when using ghostdriver
I use ghostdriver as webdriver implementation in Java - based projects I want to take a snapshot of the page The defau…… -
Java enumeration list in class [copy]
See English answers > java enums: List enumerated values from a class 4 Namely public static <T extends Enum>…… -
Java – sun. Not found security. ssl. SSLSessionImpl
When I try to use okhttp or javax ws. rs.client. Client, the following error occurs In sun security. Search in SSL pac…… -
Java – many Boolean flags are entered into the class
I have a dialog box that displays various contents according to the status of the application and the security of the …… -
Java arithmetic
Why does this code return the wrong value? int i=Integer.MAX_VALUE+1; long l=Integer.MAX_VALUE+1; System.out.println(l…… -
If HashMap Java exists, it gets the value
I want to get a value from hasmap, but sometimes the value does not exist, so I did this: int var = 0; if (hashMapHous…… -
Java – combine allmatch, nonematch, and anymatch on a single stream
I think there is the following logic: (I know it doesn't work because it consumes the stream more than once) But I don…… -
Javadoc cannot run in Android projects
I use eclipse 3.5.0 on Ubuntu 10.04 2. Android development I installed: >Sun's JDK comes from the Ubuntu repository…… -
Java is the last day of next month
I have a variable of nowdate type. I want to set the variable nextdate to include the last day of the next month For e…… -
Use Java stream to get the index of Min size list in ArrayList
I have a list of integers, such as LIST1 = (1,2,3) and List2 = (0,1) My list contains LIST1 and List2 It can contain m…… -
Java – abstract base class in dart
I've been programming in Java for nearly two years, but now I'm turning more to web programming, so I'm turning to Jav…… -
Java – on COM sun. Using generics in codemodel
Use COM sun. Codemodel, I want to generate a generic LinkedList field I can create an original field using the followi…… -
Recent Java references?
I've been programming java, but I've been away from it for some time Anyone can recommend a very good java reference, …… -
Java: copying properties from one object instance to another
Say you have public class Car{ private Engine m_eng; public Car(){ } public Engine getEngine(){ return m…… -
The easiest way to extract jars in Java
Basically, I have a jar file that I want to unzip from JUnit test to a specific folder What is the easiest way? If nec…… -
What is the difference between byte [] and list in Java?
Both can be used to create byte lists But what's the difference between them? byte[] buffer; List<Byte> buffer; …… -
How do I send commands to a running Java program?
I have a java program that I want to send commands from my Win32 Application Usually I use WM_ COPYDATA, but what opti…… -
Java mongodb 3.0 driver query without filter
How do I query using the Java mongodb 3.0 driver? I tried to query unique category records from the location collectio…… -
How can I disable a node without graying it out in JavaFX?
My problem is that I can disable nodes so that users cannot interact with them when printing However, for the same rea…… -
Java – add string value
Here is the Java problem: Solution String str = "abcde"; String str = "abcde"; System.out.println(getIncrementedString…… -
Java – system. Java on Windows Where’s err?
I have a Java GUI based application that writes some diagnostic messages to system Out and system err. Where are these…… -
Java – lock files when writing files to disk
I have two separate threads F1 and F2 (specifically, two Java. Util. Concurrent. Futuretask instances) running in para…… -
How do I use instance variables twice without renaming them?
Help, I've just started learning Java. This online tutorial I'm doing requires me to create an instance of a class The…… -
Java – random number generator
I need to write a program in Java to generate random numbers within the range of [0,1] using the following formula: Su…… -
Java – peek() actually sees the element flow through a point in the pipeline
My question is expressed in the simplest way: According to Javadoc: I have a 10 meter pipe, 3 to 7 meters away from th…… -
java – org. elasticsearch. client. transport. Nonodeavailableexception: no configured node is available: []
I run elasticsearch on docker, which is available locally $curl http://192.168.99.100:9200/?pretty { "status" : 200,…… -
Java – why does the stream operation repeat with the collector?
Allow me to make some complaints, which may be interesting, but I want to describe: "why did you raise this question?"…… -
Java – how do I close the JFrame by clicking the button?
I want to have a button in my window. If I click it, the window will close I found that I can close windows in the fol……