Recent questions tagged java

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java - Advantages of using spring stereotypes?

I am developing a web application using spring-mvc. Now the @Controller, @Service and @Repository stereotypes are ... an impact on performance? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Making a lexical Analyzer

I'm working with a Lexical Analyzer program right now and I'm using Java. I've been researching for answers on ... can help me on this. Thanks. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - what is the difference between `public class` and just `class`?

I have noticed that if don't write public before a class its works same as like a public class. I can't ... works fine. What is the reason? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - TrueType Fonts in libGDX

Does anyone know how I can use a TTF font in libGDX? I have looked around and have seen things about ... to use it. Any examples? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - How to obtain MAC address of WiFi network interface?

It seems the java.net.NetworkInterface implementation of android does not have a byte[] getHardwareAddress() method http ... " of the phone. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Spring HATEOAS versus Spring Data Rest

Question is, what's the difference between Spring HATEOAS versus Spring Data Rest ? I feel both can do the same, ... you use one or the other? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Change Jenkins port on macOS

I was wondering how one could change Jenkins' default port 8080. Using linux or windows, this is simply done ... the Jenkins port. Thanks! See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - How to run JUnit SpringJUnit4ClassRunner with Parametrized?

The following code is invalid due to duplicate @RunWith annotation: @RunWith(SpringJUnit4ClassRunner.class) @RunWith( ... in conjunction? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - How do I change the color of icon of the selected tab of TabLayout?

I'm using a TabLayout with a ViewPager and I'm wondering how I can most efficiently change the color of the ... drawable for each tab's icon. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java howto ArrayList push, pop, shift, and unshift

I've determined that a Java ArrayList.add is similar to a JavaScript Array.push I'm stuck on finding ... leaning toward ArrayList.remove[At] See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Thread.sleep vs. TimeUnit.SECONDS.sleep

If I'm going to have a call to have a Java Thread go to sleep, is there a reason to prefer one of ... sleep(x) or TimeUnit.SECONDS.sleep(y) See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - gradlew command not found?

I am working on a Java project with gradlew. I use Ubuntu Linux as my OS. When I run "gradle" it runs ... install gradle. I am totally clueless See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - GUI guidelines for swing

Is there a resource where GUI design for swing is explained? Like best practices and such. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - How to give cname forward support to saas software

I have a webapp where users can create their account and use the service. Now I want to give them a custom ... to userid when request comes in? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - How to implement a HTTPS login page in a web application?

I want to create a secure login/logout mechanism. I started reading the following articles to get an idea of ... worked with HTTPS before). See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - use of the bitwise operators to pack multiple values in one int

Low level bit manipulation has never been my strong point. I will appreciate some help in understanding ... and unpacking accomplished? Source See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - What are the differences between a Just-in-Time-Compiler and an Interpreter?

What are the differences between a Just-in-Time-Compiler and an Interpreter, and are there differences between the ... the Java JIT compiler? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Pass multiple parameters to rest API - Spring

I am trying to figure out if it is possible to pass a JSON object to rest API, Or pass a multiple parameters to that ... ) { this.id = id; } } See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Why can't this() and super() both be used together in a constructor?

Why can't this() and super() both be used together in a constructor? What is the reason for incorporating such a thing? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Domain objects/services and the Business Logic Layer

What are domain objects and domain services in software architecture? I am not familiar with them or how they ... the business logic layer? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Difference between registerGlobal(), configure(), configureGlobal(),configureGlobalSecurity in Spring security

I have below three code snippets all doing the same thing: creating in-memory authentication. So how it impacts defining ... ).roles("USER"); } See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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315 views

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java - quartz: preventing concurrent instances of a job in jobs.xml

This should be really easy. I'm using Quartz running under Apache Tomcat 6.0.18, and I have a jobs.xml file ... simple>...</simple></trigger>. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Subclipse and JavaHL installation headache

I've run into problems installing the latest Subclipse plug in. I saw this post: subclipse: Unable to load default ... I'm doing wrong? Thanks See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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386 views

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java - Usages of doThrow() doAnswer() doNothing() and doReturn() in mockito

I was learning mockito and I understood the basic usages of the above mentioned functions from the link. But I ... used for any other cases? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - crudrepository findBy method signature with multiple in operators?

I have an Entity Class like this: @Entity @Table(name = "EMAIL") class Email{ @Id @Column(name = "Id") ... Emails in a single database hit. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Byte[] to InputStream or OutputStream

I have a blob column in my database table, for which I have to use byte[] in my Java program as a ... s happening when I do this conversion? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - Can I find out the return value before returning while debugging in Intellij?

With: Object method(){ ... return /* some complex expression */ } Is there a way I can see what value ... in Visual Studio, but for intellij. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - How do I run a PowerShell script even if Set-ExecutionPolicy is banned?

The Set-ExecutionPolicy command of PowerShell is banned, so I can NOT run like this: PS> .script.ps1 (enter) Is ... how to run the whole script. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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