包含标签：Java 的文章
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Print a list in Java?
I want to print a list in Java @H_ 301_ 8@ @H_ 301_ 8@ r1 r2 r3 r4 This is the code: @ h_ 301_ 8@ @H_ 301_ 8@ public s…… -
Java – what is the best remote technology for mobile applications?
I have a Java backend that needs to expose services to clients running in the following environments: > J2ME > W…… -
Being confused by Java generics requires a cast
I'm confused about the following code: import java.util.ArrayList; import java.util.LinkedList; import java.util.List;…… -
Java – ArrayList and indexof problems of my objects
I have an ArrayList problem with Java I created an object that contains two attributes X and Y. now I loaded some obje…… -
Java: how to create a loop to create an array?
I need a lot of arrays, now I create them manually: int[] row1 = new int[3]; int[] row2 = new int[3]; int[] row3 = new…… -
Java – wicket – which ORM?
I am looking for an ORM that is easy to use and integrated for wicket applications I'm thinking about hibernate Is thi…… -
Java – find element or check if it exists in array / list?
I'm a novice. I really don't understand how this works I made a list of room information: List<Room> rooms = new…… -
Java – the question I tripped over in the interview
I was asked several Java interview questions. I don't know how to solve them. I can use some answers >Write a metho…… -
Can Java constructors construct subclass objects?
Is there any way to modify the class constructed in the constructor? public class A { A() { //if (condition) ret…… -
Java – how do I check for memory leaks?
Can I check for memory leaks without entering the code I have my application and I want to check for memory leaks In m…… -
Java – how to read a user’s char on the command line
How to read the user's char from the command line I am familiar with readint() There is no such thing as character Thi…… -
Java – structured stream exception when using additional output mode with watermark
Although I am using watermark (), when I run my spark work, I receive the following error message: From what I saw in …… -
Java – error: the main method cannot be found in the class calculate, please define the main method as: public static void main (string [] args)
See the English answer > "main method not found" error when starting program? 7 Error: Main method not found in cla…… -
Java 8 stream operation
Suppose I have a character stream named s Is it possible to convert a single string into a unary operation of two stri…… -
Is it a myth to improve the programming efficiency of Java or c#?
One of the advantages of Java or C # in improving development efficiency is that you should reduce time through comple…… -
Java – format for a period of time
In Java, I have a long integer that represents a period of time (in milliseconds) The time period can be any time peri…… -
Unit test – how to simulate the improved service observable that calls onerror?
I'm testing this code service.getProducts() .subscribeOn(Schedulers.io()) .observeOn(AndroidSc…… -
Java – what is the exact difference between these two sets of statements?
Set<Type> union = new HashSet<Type>(s1); Set<Type> union = new HashSet<Type>(s1); and Set<T…… -
Java – how to disable playback 2.6 csrffilter
I was recently migrated to 2.6. When I called my API from the postman about filters, I got 403 replies At first, when …… -
Java – how’s it going? Listening location setting is turned on (android app)
So I spent weeks working on my Android application and studying the best way to achieve what I need to do, but I still…… -
Java – Tomcat and VM
It's really hard for me to understand where Tomcat actually runs It is executed in the JVM, which executes servlets Or…… -
Java – I-phone VM for Android
I'm considering setting up a project to create an I-phone virtual machine for Android 2.0 (read Motorola Droid). Befor…… -
How to determine whether a class is equal to or extends another class (Java)
So I'm writing a minecraft mod, in which I successfully added a pistol, which can handle various support classes, ray …… -
Java – add schema names to entities in spring data?
Error using Oracle dB and spring data The error is: ORA-00942: table or view does not exist The reason for this error …… -
I have the following java code problems
public class b { public class b { public static void main(String[] args) { byte b = 1; long l = 12…… -
Java – how do I get the file list from the SFTP server?
I have a problem and hope to get a solution I also wrote some code, but I need to make some changes Question: I have a…… -
Java – change eclipse getters setters syntax
Is it possible for eclipse to generate getvar1 () instead of getvar1 ()? (with capital g) Solution I doubt it very muc…… -
Java – find specific file types from folders and their subfolders
I'm writing a method to get specific file types from folders and subfolders, such as PDF or txt, but I can't solve thi…… -
Multithreading – clojure – effectively increases the number in the list at the same time
Short version: what is the right way to store hundreds of numeric lists in clojure, increasing each number millions of…… -
Java – what is the purpose / purpose of abstract classes? Look for real-world examples
Can someone show me an example of an abstract class in Java? Something with real - World Applications (rather than tex…… -
What is a “runtime class” in Java?
I try to understand object The function of the getClass () method Documentation means that it "returns the runtime cla…… -
Java – maximum flow using custom comparator
The following is my specially written code for using a custom comparator with Max in Java 8 stream import java.math.Bi……