包含标签：Java 的文章
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Java – ternary operator does not work
NetBeans says my ternary operator is not a declaration How? int direction; direction = (Math.random() < 0.5) ? 0 : …… -
Java – InputStream closed by imageio
I encountered a very strange problem with imageio Some objects in my java program have an image I use the static metho…… -
About classes extended from base classes (Java)
I am a beginner of Java, trying to write a party task system for the game I am writing. I have a few questions I want …… -
Java – prime factorization of large numbers
I want to find the prime factorization of large numbers less than 10 ^ 12 public static List<Long> primeFactors(…… -
Why does the java compiler complain that local variables are not initialized here?
int a = 1,b; int a = 1,b; if(a > 0) b = 1; if(a <= 0) b = 2; System.out.println(b); If I run this, I receive: Ex…… -
Java – to in Oracle_ Display time zone description in char()
I have an SQL query select to_char(cast(sysdate as timestamp with LOCAL time zone),'YYYY-MM-DD,HH24:MI:SS TZR') from d…… -
Java – namespace issues
I have the following questions I tried to wrap the code from C to Java COMMON. H namespace rinad { namespace mad_manag…… -
Java – how to split large XML into small pieces using vtdgenhuge?
I want to break the large XML into small pieces I am using vtdgen to split the XML file into small pieces, which is su…… -
Java – add “http: / /” before my address
I extract addresses from a source, but some extracts do not have http: / / addresses in front of them. How can I check…… -
Java – one to many one-way parent-child ID cascade saving
When I try to save the ID from the parent class to the child class, I keep getting errors I tried all types of mapping…… -
Why am I on 1.8 0_ 45, Java Lang. nosuchmethoderror: createimageusingnativesize error
In some cases, the code used to process a single image dragged and dropped from some webrowsers (Firefox) is in 1.8 0_…… -
Java – randomly select a node from the n-ary tree
My node class: import java.util.ArrayList; public class Tree<T> { private Node<T> root; public …… -
How to delete an object from a linked list in Java?
There is a problem in my code. I made a sample program to display the EMP details in the link list. Now the problem wh…… -
Akka distribution pub sub: Java implementation does not work
Subscriber's main class: application java package com.mynamespace; import org.springframework.boot.SpringApplication;…… -
Java – why is this called backtracking?
I read it on Wikipedia and Google it, But I can't figure out what "backtracking algorithm" means I saw this solution i…… -
How do I bind the Java spring time attribute to the thymeleaf field?
I have a problem binding a java time attribute to the thymeleaf field@ H_ 404_ 7@ <input th:field="*{startTime}" ty…… -
How to modify a value in a Java property file
I have a config Properties file, which contains configurable properties, such as database connection details in webapp…… -
The java interface extends the problem
I have to implement an RMI server, which will be the front end of the other two RMI services Therefore, I think it is …… -
Java – sessionexpiredexception occurs when trying to create a post using Google blogger API oauth2
I use the following code to update an existing blog post I received sessionexpiredexception What on earth did I do wro…… -
Java – how do I prevent eclipse from moving my line comments after comments?
I set some comments on the class and comment on the same line as the comments, for example: @SampleAnnotation // sampl…… -
RX Java – with observable Just() and rxjava flatmap with one parameter
I'm using RX Java, and I have a question to understand flatmap Observable.just(1) .flatMap( …… -
java – Android gms：play-services：8.1. 0 DexIndexOverflowException
After I changed GMS: play services: 7.5 0 to 8.1 After 0, the gradle build fails with multiple DEX exceptions The erro…… -
What’s the point of putting parameters before parameters in Java / Android?
What is the difference or meaning of placing the $symbol before any variable or parameter? for example Suppose this is…… -
Java – IllegalStateException: arrayadapter requires the resource ID to be textview
I ran my code once. I ran it again. Now it crashes every time Logcat gave me this: 04-11 03:15:57.293: D/dalvikvm(344)…… -
Java – what is a concurrent language?
From the Java language specification: What is a concurrent language? Solution This means that threads and synchronizat…… -
Java – executorservice seems to run threads on the UI?
Iam tried to use executorservice to run some code to connect my client to the server Obviously Iam tried to make it ru…… -
Assembly – sometimes why do we need to disable interrupts when A20 is enabled?
In some codes of osdev wiki for enabling the A20 line, we have cli interrupt command In others we don't have them For …… -
Java – JPA onetomany list cannot find mappedby attribute that should be inherited
We are currently making some requirements. We must add some similar entities (car pictures, pet pictures, holiday pict…… -
When a decimal point is given, the Java program crashes, but int is used
When the user enters an integer, the program runs smoothly, but when the user enters the last decimal number, the prog…… -
Java cannot find method main
I have a simple hello world plan trouble ha ha! I hope someone can understand this Therefore, the errors received are …… -
Polymorphism and interfaces in Java (you can use polymorphism to implement interfaces… Why?)
In the real world, what types of problems do people use it to solve? Can I see the sample code for these collaboration……