包含标签:Java 的文章
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What protocol does java socket use?
I started using the socket and socketserver classes in Java As mentioned above, I want to know which protocol (or what…… -
What is the reason behind dynamic method parsing in statically typed languages like Java
I'm a little confused about Java's concepts of dynamic / static types and dynamic method parsing consider: public clas…… -
Java – Apache ignite node failed: unable to read magic header
The Apache ignite server deployed on both computers will shut down automatically There is no specific clue in the log …… -
Java – where to place the properties file in eclipse and how to access the path locally and on the server
I see some similar questions here, but I don't know much about them, so I want to ask questions and customize them in …… -
Merge the two lists into a “two-dimensional” list in Java
See English answers > clearest way to combine two lists into a map (Java)? 15 @ h_ 502_ 7@ I have two lists: Names=…… -
Java – creates a map from a list, where the key is part of the internal and external objects
Is it possible (in a simple way) to change it to java8 stream? (please don't comment / answer, if you want to tell me …… -
Use Java 8 stream to parse CSV file
I have one CSV file, which contains the data of more than 500 companies Each line in the file refers to a specific com…… -
Java – s.equals (“”) and “” What’s the difference between equals (s)
First: s.equals ("") and "" What's the difference between equals (s)? Second: what if I want to perform one of these f…… -
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Laravel 5.3 – ClassLoader. Errorexception in PHP line 414
I'm using laravel 5.3 I just installed the intervention / image package in my project Everything is normal, but I enco…… -
Java – Test and launch the spring boot application
I have a JUnit test. After the test, start a spring boot application (in my example, the main class is springtestdemoa…… -
Java – no math High power modulus of BigInteger
I have to turn this formula into Java code: If I can use something like math A library like BigInteger would be easier…… -
Java enum is initialized with conditions
In some cases, I want to initialize my enumeration foo with the following values private enum Foo { BAR1("1"),BAR2("…… -
Java sound generation generates noise
I'm using javax Sound to make sound, but when you play, they will make some noise in the background. If you play sever…… -
Java – how does Android add icons to each listview list item and change the text color and background color
I have a navigation drawer with some list items How to add icons to each list item and change the text color and backg…… -
Java – number of clicks to hear the activity button from within the clip
I just started learning fragments. I have an activity, that is, 1000 lines of code, which I have converted into fragme…… -
Java – create arrays using a for loop
Whether it is possible to create arrays in a similar style in Java, I have been searching and can't find anything int[…… -
Java – the default icon I can use in Android?
I want a list. I want a small icon for success / failure in each project Solution Ok... You can get a set of material …… -
Java – cannot serialize a class that has already been serialized?
See the clip below USPresident usPresident = new USPresident(56); try (ObjectOutputStream oos = new ObjectOutputSt…… -
Java – how do I replace multiple strings in one line?
I want to insert "ob" before each vowel I tried the following code: String out=txt.toUpperCase(); out=out.replaceAll(…… -
Java – IIS 403 that prohibits the use of / in URLs
I have IIS (Microsoft IIS / 7.5) returned 403 Forbidden, I can't figure out why I narrow it down to / but only if it h…… -
Java intelligently converts seconds into time
I want to create a library because I can't find one to convert seconds or milliseconds into time Well, I mean: 1) If I…… -
Assembly – vmovdqu what are you doing here?
I have a Java loop as follows: @ h_ 419_ 7@ public void testMethod() { int[] nums = new int[10]; for (int i = …… -
How do I find the smallest BigDecimal field in a collection using a Java stream?
I want to use the Java stream to iterate over the list and find the lowest price for BigDecimal The following instruct…… -
Java – exception in JUnit interrupt
See English answers > JUnit exception testing 5 For example The testappleissweetandred test calls the following – t…… -
Java Math. POW does not work properly
See English answer > integer division: how do you produce a double? 10 System.out.println(Math.pow(16,0.5)); is 4.0…… -
Java filter list to generic type T
What should I do (without compiling): <T> List<T> getElementsOf() { return list.stream() .…… -
Java – Scala check optional string is null or empty
I'm new to scala. I want to learn how to add null and null checks to optional strings? val myString : Option[String] …… -
Java – x = x equals x = 2x 1: why?
The question is just curiosity: I want to know what the value of some int x is after the x = x line int x=10; x+=++x; …… -
Java – manifest merge failed – access to Google Maps V2
Hello, I'm building an application through the stackskills lollipop tutorial in Android studio I'm fully following the…… -
Why double in Java for a long time?
SSCCE: public class Test { public static void main(String[] args) { Long a = new Long(1L); new A…… -
Java – how to find duplicate rows and display the number of repetitions before them
Yes, it's a trivial problem, but I didn't find a duplicate problem Currently, from this collection (ArrayList): Java C……