包含标签：Java 的文章
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How to wait and close the command prompt in Java
I use the following code to execute the batch file: java.lang.Runtime rt = java.lang.Runtime.getRuntime(); Process pr …… -
Java – convert object to object []
The method in the library I'm using returns an object, but it's actually an array of objects I'm trapped where I need …… -
Java – what does this’ static ‘mean and why
public class tt { public class tt { static{ System.out.println("class tt"); } } This is the first time I have …… -
Java API for calling rest services
Can anyone suggest a better open source Java API to call rest services? I also want to know if the restlet API support…… -
Where to find synchronization contention evidence in Java?
Our Tomcat web application feels slow when used by hundreds of users The server is in the hosting company, and their r…… -
Forking processes with Java
Can a complete "program" branch be created from a single execution sequence into two subroutines? The subroutines are …… -
Java – how does a class that references itself work?
Suppose we have a class like this: class XCopy { public static void main(String[] args) { int orig = 42; …… -
How do java public / private and static modifiers affect multiple variables declared on one line?
Are the following equivalent? private static boolean readAllFiles = false,readAllDirs = false; private static boolean…… -
Java – disable the open button in Jfilechooser?
I extended a Jfilechooser and overridden the approveselection method so that when the user selects an invalid director…… -
Java – why do you actually need war files in Tomcat?
Why not put the files in a subdirectory under the webapps directory? Solution Using war files has no performance advan…… -
Java – what happens to the returned object when I call “new object()” without storing the return?
Suppose we have some code as follows (I know this is a bad practice): try { new myObject(); } catch { //stuff } Wh…… -
Java – JFrame has the same shape as image / program running in the background
My problem is very simple, the solution is definitely not I am looking for a way to shape a JFrame, just like the imag…… -
Java – spring security oauth2 client
I have set up an oauth2 server with spring security I want to write a client application to use this OAuth server with…… -
Implementing binarytree in Java
I have this code for binarytree creation and traversal class Node { Integer data; Node left; Node right; …… -
Output of expressions in Java (– I)
int i=9; int i=9; System.out.println(--i + ++i); But according to the association and priority rules in Java, I should…… -
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Java – is it possible to trigger JButton events through method calls – rather than JButton clicks?
Can events be triggered through method calls? (and click) import java.awt.event.*; import javax.swing.*; public class…… -
Using generic classes and generic methods in Java is difficult
Java novice, I did search some examples, but I'm really sad I have a node class that uses generics: public class Node&…… -
Dropwizard / Jersey returns the Java list as JSON without a root node
I'm using the dropwizard using plain knit fabric for Jason My problem is that when I return a list, it does not specif…… -
Correcting Java program code snippets
I'm a beginner. I learn Java and modify my exam by answering the questions in the past exam papers. There's another qu…… -
Java regex – how to replace patterns or how to replace patterns
I have a pile of HTML files In these files, I need to correct the SRC attribute of the IMG tag <img alt="" src="./S…… -
VHDL std_ logic_ Vector index and “downto”
I want to set STD separately_ logic_ Vector to easily annotate individual bits or groups of bits This is what I have: …… -
Java – serialize object properties
When I use serializable in a class, do I need to add serializable to all objects in the class? For example, public cla…… -
Java – spring 3.1: how to inject beans created in different configuration classes
I just set up a web application using spring 3.1, and I try to do this by using java configuration Next, the verifier …… -
It looks like an internal static class in Java, but obviously it’s not (I don’t understand, how is this possible?)
From: imageView.setLayoutParams(new GridView.LayoutParams(85,85)); View the new GridView Layoutparams section It seems…… -
Java – printwriter adds text to a file
In my online computer science class, I have to write a program to determine the surface gravity of each planet in the …… -
Refactor this java code to check whether the string contains any of these possibilities?
I need to check the possibility that a string does not contain any of these strings: MNC bra LEB Mar RVC method GLZ Wo…… -
Java – how to check whether the function execution exceeds the specified number of seconds?
If it takes more than 3 seconds, I want to time out a function long startTime = System.currentTimeMillis(); getStaticJ…… -
Java – add the Google API to an existing eclipse project
I'm writing an Android application that will use Google maps, but to do this, I need Google API When I downloaded the …… -
What instantiation is called in Java?
This may be a very basic problem for Java, but I don't remember it and don't know how to search it online button.setOn…… -
Java – loads objects from a file into ArrayList
I don't know. If I don't know how many objects there are, how should I read objects from the list? Saving is easier be…… -
How is inheritance in Java different from real-world inheritance?
I got this question in an interview Through the inheritance of the real world, the interviewer means that something li……