Recent questions tagged Java

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java me - Displaying Alert with Yes, No Command

At the J2me application I used an alert with yes, no command. If user clicks the yes command Form Screen will be ... } } Where is my fault? 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 make the output come in different columns?

Im making a program that outputs, the numbers 1-10 in one column, the square of this in another and in the third ... ] args){new Del2upp3();} } 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 - Warning: Looking for usage map at page 1774, but page type is 1 in UCanAccess

When trying to run a program that interfaces with Access 2010 it throws the error WARNING:Looking for usage map at page ... 1; } finally{} } 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 - disable/enable compilation errors in Netbeans

I've made the terrible mistake of telling Netbeans always to ignore compilation errors when running my Maven application ... changed ? TIA ! Jan 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 - Paypal Sandbox Business Account not credited and Buyer is not debited

I made a DoExpressCheckoutPayment call with following detail and success.[Of course the call is made after the successful ... to ask me. 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 use method with generics and inheritance?

Having the following classes: public interface Step<C extends Config> { void setConfig(C config); } and public ... /src/main/java/my/generics 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 Multiple Renderers in JFreechart

I have data that I'd like to represent as a box and whiskers graph, and have set up a category plot to ... in my box and whiskers graph? 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 - Regex Optimization for large lists

I am comparing two lists of strings to find possible matches. Example: public class Tester { public static ... comparison. Thanks in advance 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't create handler inside thread that has not called Looper.prepare() Android

I am using AsyncTask to call yahooweather API. Following is the code: public class myactivity extends Activity { final ... ) Please help me out. 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 - Make JSF resources publicly accessible with Spring Security

I have implemented spring security in my jsf application. Everything is working fine except static resources require ... , css effect appears. 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 - Width and height of a JPanel are 0 (Specific Situation)

Please pardon me if this is hard to follow, but I have a specific problem that I need help solving. I have ... 't just use setPreferedSize();. 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 make own metrics in Spring Boot for prometheus

@GetMapping(value = "/ownMetrics") public String ownMetrics() { return "ownmetrics_age{Name="Age",} " + age; } ... that prometheus it can read. 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 - Query in a MongoDB Map Reduce Function

I have streamed and saved about 250k tweets into MongoDB and here, I am retrieving it, as you can see, based on a ... { "publicTweets" : 15.0}} 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 - I can't get my JTable to show anything

I cant get my gui to show the Jtable, why i dont know and i dont get any error and when i print something ... works, so please help me :D 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 can't add search button to options menu

I am following this Tutorial but I can't get a simple search button to show up on the options menu. Code: ... hdpi ones but no res/drawable/) 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 - Junit 5 looking for actual environmental configuration to run the test

My project is using spring-boot, sping-data-jpa, spring-data-rest, hibernate I have updated to spring boot 2. ... .java:391) ~[spring-orm-5.2.7.RELEASE.ja...

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

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java - Painting an Image using Graphics2D

I'm trying to get an image to paint on the screen using java's Graphics2D. Here is the code I'm using. I ... running. I don't really care how. 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 - Parse JSON Array

My JSON is something like this: [{ "myviews":[{ "2011-05-12_2011-05-14":{ "name":"thiswk", "data":[[12 ... must begin with '{' at character 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 - Spring Boot : Count Page Views - Actuators

I have a requirement to count the views on each endpoint. The idea is to create one common Request Count ... actuator</artifactId> </dependency> 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 can I use gson to create a set of key value pairs?

I currently have this code, how can I add to it so I can get a JsonObject from Gson to append it to an ... new JsonWriter(new FileWriter(f)); } 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 - Trouble using regex in DocumentFilter for JTextField

I am using a DocumentFilter on a JTextField which is used to enter in the amount of time an employee has worked ... ().beep(); } } 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 - Replace all instances in string with unique replacement

I'm attempting to replace all instances of a particular String with a unique replacement. What I would like: If I ... System.out.println(out); } 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 - Single Variable Polynomial (from text file)

I want to modify the below code to read the nodes from a text file (vs. hard-coded values) Furthermore, read data from ... (ans != 1000); } } 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 - I want to display the key value bean based on sorting of value in Struts 2

I want to display the key value bean based on sorting of value in Struts 2. <s:select list=" ... the values based on listValue. 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 avoid WSOD (blank screen) while loading long-running initialization data in Struts2?

I need to do the following: User logs in. Redirected to welcome screen. Looks at the welcome screen while lots of ... so, I am new at Struts. 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 - Call a method when application closes

In my Swing chat application I have a logout button which is used to logout the user and it works fine. Now ... . How can I 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 Display a Windows event Log details in jni the return data must be array of properties

eventJava.java import java.util.*; public class eventJava{ static{ System.loadLibrary("event"); } public ... want it using properties array 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 Boot with session-based data source

I've been tearing my hair out with what should be a pretty common use case for a web application. I ... advice would be very much 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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