包含标签：Java 的文章
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Change the color of the panel title in Java Swing
I am running swing application on win7 with 144 DPI flat panel monitor The titles of my frame, options pane, etc. are …… -
The Java – graphics2d conversion result does not match the manual conversion
I use Java's graphics2d to manipulate my drawing on a component using affinetransform Sometimes I need to manually ope…… -
Randomize text files read in Java
I try to read a text file in Java, which is basically a set of problems There are four choices and one answer The stru…… -
Java – use the abstract init() function in the constructor of the abstract class
I have something like this: public abstract class Menu { public Menu() { init(); } protected abs…… -
Converting images to 2 colors in Java
I want to use java to convert the image to 2 colors, black and white I am converting to grayscale using the following …… -
Java nosuchmethodexception when getting constructor
I tried to use reflection to load instances of classes When I tried this, I got an exception without this method I'll …… -
Java – does hibernate / JPA consider transiant modifiers (not annotations)
I want to avoid serialization (in JMS / AMF), but still use JPA / hibernate to hold fields Is the transient modifier m…… -
Java – how to animate a gyro?
It's Hanukkah, and I'm trying to animate the Dreidel: I can make it rotate on its own axis This is my code: import sta…… -
Java – won’t Android studio let me use switches on strings?
I'm creating an Android Application in Android studio and trying to create a switch case on the string As far as I kno…… -
Java – why do I throw a NullPointerException
So it's a winter vacation for college, and I'm trying to be sharp in coding, so I just write the code of programs and …… -
How to calculate a good hash code for a large list of strings?
What is the best way to calculate a hash code based on the value of these strings in a pass? OK, I mean, it needs to: …… -
Java – tag interface
Can anyone explain the contract of marking interface in Java? For ex: if clonable is a tag interface without fields / …… -
Why is java safe compared to other programming languages?
Java vendors and communities say that "Java is more secure than other languages." But I want to know what? If we look …… -
Java – use jersey-spring3 to retrieve managed beans from the Jersey test container
This question is derived from the previous question specify custom application context We are using Jersey spring to b…… -
Key of string in Java RSA
I use RSA encryption in my application To store the generated public key, I convert it to a string and save it in the …… -
Java – how to execute unit tests using threads?
Executive Summary: when an assertion error is thrown in the thread, the unit test will not crash This makes sense beca…… -
Java – why the super class method?
class One { class One { public void doThing(One o) {System.out.println("One");} } class Two extends One{ public…… -
java – httpURLConnection vs apache commons http
I just want to know if you have any problems using the Java default httpurlconnection class A bug that lets you switch…… -
Java – in spring data public 2.0 Querydslpredicateexecutor not found in 4
It took me hours to find querydslpredicateexecutor. In the spring data Why do you call it Solution It's in 2 X from qu…… -
Java – spring boot and thymeleaf – remove strict HTML error checking
I use spring boot as an MVC application, and my view technology is thymeleaf One thing I need to do is copy the HTML o…… -
Java EE – securitycontext is not applicable to @ rolesallowed
I am currently using Jersey 2.5 in Tomcat 7 1 create a backend server For security, I use @ rolesallowed, @ permitall …… -
Java – jarentry. Java when the jar file is opened from URL to InputStream Getsize() returns – 1
I tried to read the file from jarinputstream, and the size of the file returned - 1 I am accessing the jar file from t…… -
Java – how do I limit spring component scanning to files only in my war?
I'm using spring's component scan to find beans in my application <context:component-scan base-package="com.myapp"/…… -
Java to C cross compilation
Who knows a good java to C cross compiler? Do they work well? Solution Can you explain why you want to port java code …… -
Java regular expression content between single quotes
I try to write a regular expression in Java to find the contents between single quotes Can someone help me? I've tried…… -
Exchange server – cannot get sender email address using EWS Java API
I am using EWS Java API 1.1 5. I am trying to get the email sender as follows: ItemView view = new ItemView(10); FindI…… -
Java – programming spring MVC controller and JSP for httpdelete
I tried to delete an entity on a page by deleting a link (a href) or a delete button (form) I'm using the delete butto…… -
NoClassDefFoundError uses Scala classes from Java
I don't have Scala experience, so this problem may be basic According to the "person" example in this tutorial, I am u…… -
Java – is this AES encryption secure enough?
I from http://www.ravenblast.com/index.php/blog/android-password-text-encryption/ Having obtained this code, although …… -
Java – find all the leaves through binary search tree iteration
I'm new to trees. I'm trying to create a "leaf iterator" I think it should put No Left and All nodes with the right va…… -
Java – the URL can be accessed using a browser, but it is still a FileNotFoundException with urlconnection
I use httpurlconnection to connect to a website and receive a response code = 404 (http_not_found) However, there is n…… -
Java – disruptor – eventhandlers not called
I was playing with the disruptor framework and found that my event handler was not called This is my setup code: priva……