menu

arrow_back Recent activity by vitya_brodov

1 answer
image
How do I spar the date from Excel into java? When you try to save an excel-file and write it into an object, it throws an exception about Cannot get a numeric value from a text cell in the date field. Question: ...
commented Dec 19, 2021
6 answers
Is it okay to sit and parse documents? After I finished my internship, I got a job at a bank as a java developer. I've been working at a bank for about six months now. The main tasks are parsing Excel and o ...
commented Dec 19, 2021
1 answer
How do I get an ftp file that is as up-to-date as possible? Task: Select the most recent file from the FTP server and send it via email; The question is how can this be implemented/designed? I have implemented the functionalit ...
asked Dec 16, 2021
1 answer
Как решить проблему Error creating bean with name 'entityManagerFactory' defined in class path resource? There is a problem when running the application: Error creating bean with name 'entityManagerFactory' defined in class path resource how can the problem be solved? (Go ...
commented Dec 16, 2021
1 answer
image
How do I make a todo list text editor? There is the most common Todo project, with buttons to delete and update the status of the task. Question: How can I implement a button to edit task text? screen: co ...
commented Dec 16, 2021
1 answer
How do I set the date pattern correctly in java? I have a LocalDateTime, which is set in the format: 2021-08-18T00:48:02.4089693 How can I get it to accept only in the pattern: year/month/day hour/minute? ...
commented Dec 15, 2021
1 answer
image
Why doesn't the class beat? Hello! when using Lombok, it works somehow crooked (maybe) For example, the class doesn't build: ErrorDto class:@Builder@NoArgsConstructor@AllArgsConstructorpublic c ...
asked Dec 13, 2021
1 answer
Why can't Spring boot see the annotation? Why can't Spring boot see the annotation? How can the problem be solved? (Annotations glow red) code: import org.modelmapper.ModelMapper;import org.springframework. ...
commented Dec 10, 2021
1 answer
image
Как быть с ошибкой: Error creating bean with name 'dataSourceScriptDatabaseInitializer' defined in class path? Hello, everyone! When connecting postgresql to intellij idea it throws an error at startup: I think I got everything right in the properties: spring.datasource.url= j ...
1 answer
How do I install intellij idea back? I uninstalled the idea, then I try to install it again, but it just opens it and that's it! What to do? p.s OC - linux mint p.s.s Install through the package manager ...
commented Dec 4, 2021
1 answer
image
Error when building the project, what to do? An error occurs when building the project: Abnormal build process termination: Even with a hello world project! (I have jdk 11 and 8, it did not help.) ...
asked Dec 2, 2021
1 answer
How do I spar the json using hhtpUrlConnection? Here's the link https://jsonplaceholder.typicode.com/posts I have a json, my task is to spar the json which contains an array of objects, then convert it to classes an ...
asked Dec 2, 2021
3 answers
Where to go next after java core? Hello! I have mastered java core and do not know where to go next, Please advise where to look next? P.s aiming for the backend ...
asked Dec 1, 2021
1 answer
Is it possible to spar the josn file without creating its object? I have a json file: people.json and trace code: Gson gson = new Gson(); Person person = new Person(); try{ FileReader fr = new FileReader("/ ...
asked Nov 28, 2021
1 answer
How much should a sql java junior know? Hello! At this time I am at the stage of learning java core and here I wondered whether to learn sql at this stage or not to bother with it yet? ...
asked Nov 25, 2021
2 answers
Polymorphism is reverse inheritance? Is it correct to consider polymorphism as reverse inheritance? That is: the ability of the ancestor to apply the fields and methods of the child class? If not, can you ...
asked Nov 22, 2021
2 answers
Why is Queue needed? Hello! I can't understand why Queue/Deque is needed. 1. How to use it? 2. In what cases does it apply? 3. How often is it used in practice? p.s I would be glad if ...
asked Nov 19, 2021
2 answers
How to create two lists with unique numbers? Hello! I need to do: Create two lists of 10 elements from 1 to 100. Check on which attempt to create lists with unique values. how do I do this correctly? What I do: ...
asked Nov 14, 2021
1 answer
How do I add random objects to a List? Good evening! I have a Seller class that has: fields: private int money = random.nextInt(50)+50; // Начальное количество денег от 50 до 100 монет private ...
answered Nov 12, 2021
1 answer
How do I read data from a json file and enter it on the screen? Hello! there is a json file data.json from which I try to read data, but the compiler says "I expected something different, but you're giving me junk. what's wrong wi ...
asked Nov 11, 2021

251k questions

567k answers

0 comments

272k users