Recent questions tagged java

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java - What condition does while(true) test? When is it true and false?

I do no understand why anybody would use while(true) { //do something } instead of boolean condition = true; while ... , and when is it false? 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 - Convert doc to pdf using Apache POI

I am trying to convert doc to pdf using Apache POI, but the resulting pdf document contains only text, it is not ... document.close(); } } } 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 lock phone programmatically android

Ho do i lock my android phone programmatically ? I tried following this example. But when i click on the ... down) Any help is appreciated 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 - Android - Draw Bitmap within Canvas

I currently have a maze game which draws a 5 x 5 square (takes the width of screen and splits it evenly) ... the overall screen width evenly). 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 refresh jsp's on weblogic

I'm running an exploded war on weblogic 10.0 in production mode. I want to modify a jsp without having to ... - has anyone got a solution? 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 - apache flink 0.10 how to get the first occurence of a composite key from an unbounded input dataStream?

I am a newbie with apache flink. I have an unbound data stream in my input (fed into flink 0.10 via kakfa). I ... (); testStream.keyBy(0,1); } 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 - ClassCastException when Appending Object OutputStream

I have been trying to do a little project that needs an appendable ObjectOutputStream. I have gone through a couple of ... ) fos.close(); } } 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 - System.out.println to JTextArea

EDIT: I have edited the post to clarify my question, now I myself, have more understanding. I am essentially, ... tutorial on this area? 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 - using SQLCipher with android shipped sqlite database file

I have a database file reset in the assets file. How can I use SQLCipher to encrypt the database in android? 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 install a JRE from an Inno Setup?

I'm trying to install the most current platform (x64 or x86) appropriate Java Runtime Environment via Inno Setup ... this scripted setup file? 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 - Sms ContentObserver onChange() fires multiple times

I know this question has been asked multiple times, but nobody has been able to come up with a working answer ... figure out a way around this. 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 - communication between remote servlets

I have two web applications say App1 and App2. I want to call a servlet which is in App2 from a servlet in ... of App1. How to achieve this? 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 copy input/output streams of the Process to their System counterparts?

This is a follow up to this question. The answer suggested there is to copy the Process out, err, and ... will work with interactive processes? 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 map dynamically created table in Hibernate?

I am working on a web application. We are using Hibernate as ORM in our project. Actually, our application ... with Hibernate and Java objects? 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 manage multiple browser tabs with Spring Security?

I wonder if, with Spring Security, I can validate the user sessions, allowing only one browser tab open. Is it ... my bad English. See ya! 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 my string manipulation is slow using lambda expression?

A method takes comma separated words as a String and returns a String of comma separated words with the words in ... return result.toString(); } See Question&Answers more detail:os...

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

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319 views

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java - Auto logout after X minutes, Android

I'm looking to implement a feature that logs out the user after X minutes of inactivity. After going through a ... handle this? Thanks, Teja. See Question&Answers more detail:os...

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

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271 views

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java - Aspectj and catching private or inner methods

I've configureg AspectJ with Spring and it works fine when "catching" public methods called from out of the class. ... proceed"/> </aop:aspect> See Question&Answers more detail:os...

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

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218 views

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java - Verify if point is inside a cone in 3D space

Consider: X(x1,y1,z1) the point I need to verify if it is inside a cone. M(x2,y2,z2) the vertex of the ... cone, the machine gun will shoot it. 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 expose @EmbeddedId converters in Spring Data REST

There are some Entities with composite Primary Keys and these entities when exposed are having incorrect Links ... enabled inside Repositories See Question&Answers more detail:os...

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

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249 views

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java - JAX-RS, Map<String,String> to JSON without the overhead?

I'm using JAX-RS to create restful webservices in Java. I am getting to much overhead in the produced JSON. Data ... keys or size of the map. See Question&Answers more detail:os...

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

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294 views

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java - How to create notification icon badge on Android apps (like iPhone)

I am very new to programming and would like to know what is the best way to go about creating a notification ... end up in the notification bar. 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 use SWIG to wrap std::function objects?

I have seen quite a few similar questions, but have not found a solution to my particular problem. I am attempting ... of what I was after. See Question&Answers more detail:os...

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

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263 views

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java - Hibernate : closing the session factory does not close the c3p0 connection pool

I recently started using hibernate along with c3p0 as the ORM in my application. However, when I close the session factory ... version : 0.9.1.2 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 - How does mockito create an instance of the mock object

When i create a mock object of say class Employee. It doesnt call the constructor of Employee object. I know ... of employee class created ? See Question&Answers more detail:os...

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

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326 views

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java - Hibernate lazy loading for reverse one to one workaround - how does this work?

I was having problems today with lazy loading not working when using a mapped by collection. I found this ... of this FieldHandler variable. See Question&Answers more detail:os...

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

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250 views

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java - Sending Signals to a Running JVM

I'm using a custom signal handler to catch TERM, ABRT and INT signals in a custom java daemon. ... developerworks/java/library/i-signalhandling/ 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 - Navigation Architecture Component - Login screen

I am planning to implement navigation like this: The problem I face is when user is in LoginFragmennt and ... How to properly implement this? See Question&Answers more detail:os...

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

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