包含标签：Java 的文章
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java – @Override on Implementation
Will you put comments in the implementation class methods? Is it useful? If you input wrong or no input, it is a compi…… -
Java of jar file
I created a Java application and packaged it into a jar file on the windows platform Now I want to deploy the jar file…… -
Is this statement correct in Java?
I want to use datagram socket to transfer data between two computers I use the following lines: host=InetAddress.getBy…… -
Java – why is this non greedy regular expression more than I want?
I think it should return to "state, country", but it is returning to "country" System.out.println("city,state,country"…… -
Java: trying to get the percentage of integers, how to sort it out?
I have two integer values, X and the sum I tried to find the percentage of total X That's what I'm doing now: Percenta…… -
java – Math. How does random () generate random numbers beyond the “native” range?
As far as I know, math Random () itself generates random doubles between 0.0 and 1.0, including 0.0 but not 1.0 I also…… -
Java – exception: add a window to the container How?
I have a jdialog class called preferences This class creates a constructor, such as: class Preferences extends javax.s…… -
JavaFX Maven plug-in and API are incompatible
I recently upgraded my java version to 7u40. 0 on my Fedora 19 Then I started to make a nasty mistake in the JavaFX pr…… -
Java thread pool
I want to learn how to write a thread pool in Java Can anyone point out my useful resources? Solution You can view the…… -
Is there any way to make the constructor return a = = null object in Java?
I have a feeling that the answer is "no", but I think I'll ask just in case Pseudo code: Foo foo = new Foo(); if(foo …… -
How to modify the final StringBuffer value after creation in Java?
I know the final variable characteristics It cannot change from its initialization state however How is StringBuffer d…… -
Java – why do we have to declare dependencies on the JBoss 8 (wildfly) manifest?
The following ear is given: > my-app. ear > my-ejb. jar > my-webapp. war > lib > my-lib. jar My EJB nee…… -
A list of all binary combinations of numbers in Java
I'm working on a project involving "dynamic programming". I'm shocked by this trivial thing. Please help Suppose I tak…… -
Java integer ArrayList returns elements in a specific range
I have an integer Java ArrayList ArrayList <Integer> ageList = new ArrayList <Integer>(); I have some int…… -
What is the scope of Java variables in the block?
See English answers > why does Java not have block scoped variable declarations? 6 void foo(){ int a = 0; f…… -
Java – why mockito returns_ Default does not return the default string?
In the following example (mockito 1.10.19): MyClass myClass = Mockito.mock(MyClass .class,RETURNS_DEFAULTS); Strin…… -
Java – is there any reason to always use objects instead of primitives?
So I just started to write the second programming class in Java. This is an example that the professor showed us loops…… -
Java – hex color to RGB color
I have a decimal (non hexadecimal) color code. Using Java, I need to convert it to three RGB colors For example, 16777…… -
Java – excludes folder names from eclipse file searches
How do I exclude a folder name from eclipse file search (ctrl h)? For example, if I want to search all files but exclu…… -
Java – how to change text when scanning a barcode with zxing in Android?
When you start the barcode scanner (zxing) by intention, can you change the prompt text of "put barcode in viewfinder.…… -
Java – can the kernel be written in assembly language?
I've never done kernel programming I am an excellent programmer of Java language and often use it Now I want to do som…… -
Java – MD5 is the letter of each password worth it?
to greet, I am currently developing a project involving login system, which aims to set up as safely as possible What …… -
Java Rest framewok
Which is a good java rest framework? I want it to be deployed with Tomcat 6 Solution See my answer: Restful web develo…… -
Java – hibernate or JPA?
When using spring 3.0, hibernate or JPA is recommended What are their advantages and disadvantages when used with spri…… -
java – XML vs JSON. Which is better for storing small pieces of data?
See English answers > What are the pros and cons of XML and JSON? [closed] 17 1. Which is better? XML or JSON for s…… -
How to get value from Java enumerations
I have an enumeration that looks like: public enum Constants{ YES("y"),NO("N") private String value; Constants(…… -
Java – ArrayIndexOutOfBoundsException when iterating through all elements of an array
How to handle this exception "ArrayIndexOutOfBoundsException" public static void main(String [] arg) { int [] a=ne…… -
Java static method parameters
Why does the following code return 100 1 1 instead of 100 1 1 1? public class Hotel { private int roomNr; public Hote…… -
Java Native array length
I have a 2D binary array in Java. It is basically a value table. I want to know how many rows it has It declares elsew…… -
How do I access memory locations in Java?
Can we access memory locations in Java directly or indirectly? If we try to print the object, it will print the hash c…… -
How to check whether the variable name contains a string, and then output the string variable content
So I have these four variables private final String PROG_DEPT = "PROGRAMMING/ENGINEERING"; private final String DES_DE…… -
Java – from application Properties spring boot read value
My spring launch application has the following application bindings > src >Main >Java > resources > app……