Java 归档 - Page 82 of 655

Add a new string to HashMap Java

I'm writing a program to read the log file and count the number of times some strings are displayed I tried to manuall……

Java

2020-08-31

Java selection: store images in jar or Base64 order?

I wrote a poker simulator / odds calculator On the GUI, there are some JCombo@R_271_2419 @The user can select the card……

Java

2020-08-31

java. sql. Sqlexception: ora-06550: after calling the procedure from Java code

Hi, I have a problem calling stored procedures connection = ConnectionManager.getInstance().getConnection(dataBaseURL,……

Java

2020-08-31

Java – the fastest way to combine unique integers from 2 arrays

If I have 2 arrays: arr1 = {9,8} arr2 = {13,12,10,9,8} I want to get: {13,10} And the array is given: arr1 = {23,22,21……

Java

2020-08-31

Java – Android simpledateformat does not work

Quick questions, simpledateformat didn't perform as well as I expected I want to get a date string that looks like Thu……

Java

2020-08-31

Java – start Tomcat war

I installed Tomcat server on my computer I created a set of servlets in eclipse and exported them in war format When I……

Java

2020-08-31

The best way to wait in Java

I have an application that needs to wait for some time It must wait until the server fills in several data fields The ……

Java

2020-08-31

Java – the concept of page path in JSP and Servlet

What's the difference between the two? In jsp: ${pageContext.request.contextPath} How do you achieve the same result w……

Java

2020-08-31

Java – truth table array

I always insist on how to start coding The first case will be: t T. after I have completed other calculations on this ……

Java

2020-08-31

Upgrade from Java 1.4 to Java 6 se

I am currently upgrading from Java 1.4 to Java 6 se Some methods and classes have been deprecated or there have been n……

Java

2020-08-31

Java – how to make my program run outside eclipse

I have a solar eclipse project When I click the green circle play button in the IDE, it will do everything I want it t……

Java

2020-08-31

Java – BigDecimal and BigInteger and BigDecimal performance

I'm discussing whether to use BigDecimal and BigInteger or just BigDecimal to make my life easier and less back and fo……

Java

2020-08-31

Java – spring data: JPA schema jparepositoryconfigdefinitionparser initialization failed

I'm trying to set up a project about spring data, but I encountered a strange error like this: Handle problems with pr……

Java

2020-08-31

Java – why call JFrame Will pack () add extra space?

At first, the code I used worked well, but it was a little confusing After moving some parts of the method to the cons……

Java

2020-08-31

What’s wrong with defining a Java class with an array of elements of that class as one of its fields?

My application model is composed of disorders, each of which has innate attributes (identity, name, incidence rate, et……

Java

2020-08-30

Java – mybatis custom typehandler is not executed when tags are placed

I have a < resultmap > that uses a custom typehandler as one of the result properties: <resultMap id="foo" ty……

Java

2020-08-30

Java – how to pass multiple parameters to a restful web service using HTTP post

I have two array parameters and an object array, and I want to pass them @POST @Path("Test3") @Produces("text/plain"……

Java

2020-08-30

Java – running functions on JButton

I'm trying to create a program in Java that uses a robot to press a specific key every few seconds It has a GUI with s……

Java

2020-08-30

Java – is it correct to use ArrayList or LinkedList instead of list when declaring variables / parameters?

See English answers > type list vs type ArrayList in Java 15 public class foo { private List<String> fooT……

Java

2020-08-30

Multithreading – passing qlist * to signals from qthread

In my QT application, I have a class called from an object running in a thread In my worker class, I created qlist, ju……

Java

2020-08-30

Java – object initialization using interfacetype

I've just come into contact with the Java programming language I have been programming in c# for two years When I brow……

Java

2020-08-30

Java – JScrollPane ‘lazy’ scrolling, containing many components

I have a 3045 form! Components (1015 labels, 1015 text fields, 1015 combo boxes) All of these are in JPanel and JPanel……

Java

2020-08-30

Java – binary search is not applicable to doubles

This program applies to integers, but not doubles There was no error, but the program returned - 1 Sorry, if this is a……

Java

2020-08-30

Java – data structure with key value mapping and sorting

I need a data structure that provides key value mapping, such as map, but this also allows me to obtain keys based on ……

Java

2020-08-30

Java – directional path in neo4j

I am faced with a seemingly simple problem I want to use the Java API to traverse the nodes of the neo4j graph However……

Java

2020-08-30

Java – can I set getaddrinfo timeout for defaulthttpclient in Android?

In the Android application, I try to test whether the user has an available Internet connection If you are interested,……

Java

2020-08-30

How to resize button text – swing in Java

I'm new here and have taken my first step in Java For learning purposes, I'm trying to create a simple GUI using a gri……

Java

2020-08-30

Java running program at command prompt: main class not found or loaded

I'm trying to learn how to compile and run using only the command line in windows This is the directory tree from the ……

Java

2020-08-30

How do I find a running Java virtual machine on my computer?

I want to know which JVM I am using when I run a java program from the command prompt Is there a CMD command that can ……

Java

2020-08-30

java – Spring LDAP NullPointerException

I am using java spring version 1.3 1-RELEASE. There appears to be a problem with ldaptemplate when trying to perform a……

Java

2020-08-30

java – Pom. XML project build error

I imported the Maven project into my eclipse, but I did it in POM The following errors were encountered in XML – I hav……

Java

2020-08-30

Java backward compatibility description

I have a Java class file I compiled with JVM 7 I implemented Java 1.7 additions, such as string switchcase and diamond……

Java

2020-08-30

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Add a new string to HashMap Java

Java selection: store images in jar or Base64 order?

java. sql. Sqlexception: ora-06550: after calling the procedure from Java code

Java – the fastest way to combine unique integers from 2 arrays

Java – Android simpledateformat does not work

Java – start Tomcat war

The best way to wait in Java

Java – the concept of page path in JSP and Servlet

Java – truth table array

Upgrade from Java 1.4 to Java 6 se

Java – how to make my program run outside eclipse

Java – BigDecimal and BigInteger and BigDecimal performance

Java – spring data: JPA schema jparepositoryconfigdefinitionparser initialization failed

Java – why call JFrame Will pack () add extra space?

What’s wrong with defining a Java class with an array of elements of that class as one of its fields?

Java – mybatis custom typehandler is not executed when tags are placed

Java – how to pass multiple parameters to a restful web service using HTTP post

Java – running functions on JButton

Java – is it correct to use ArrayList or LinkedList instead of list when declaring variables / parameters?

Multithreading – passing qlist * to signals from qthread

Java – object initialization using interfacetype

Java – JScrollPane ‘lazy’ scrolling, containing many components

Java – binary search is not applicable to doubles

Java – data structure with key value mapping and sorting

Java – directional path in neo4j

Java – can I set getaddrinfo timeout for defaulthttpclient in Android?

How to resize button text – swing in Java

Java running program at command prompt: main class not found or loaded

How do I find a running Java virtual machine on my computer?

java – Spring LDAP NullPointerException

java – Pom. XML project build error

Java backward compatibility description

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