There are no items to select что делать
[Вопросы] Почему на телефоне Xiaomi Mi9T pro когда я удаляю фото их нет в корзине?
При удаление фото из галереи на телефоне „Xiaomi Mi9T pro” фото не сохраняется в корзине. Хотя должны храниться там 30 дней. У меня есть учётную запись. Но все равно нет Написано что можно расширить допустимую память и дни хранения при покупки VIP. И также написано „ no items here yet» Что делать? И в чём моя ошибка? Также есть такая запись как „. удалить из Xiaomi Cloud. ” и также на фото горит такой значёк зачёркнутого облака.  |
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Eclipse Java error: This selection cannot be launched and there are no recent launches
I have looked everywhere on the internet and tried everything the forums say to do and nothing works. This error keeps coming up. I have tried running my java project (not for android) even the drop down run as button doesn’t work because it says «none applicable».
9 Answers 9
Eclipse needs to see a main method in one of your project’s source files in order to determine what kind of project it is so that it can offer the proper run options:
Without that method signature (or with a malformed version of that method signature), the Run As menu item will not present any run options.
Check, you might have written this statement wrong.
I have also just started java and was facing the same error and it was occuring as i didn’t put [] after args. so check ur statment.
When you create a new class file, try to mark the check box near
this will help you to fix the problem.
click on the project that you want to run on the left side in package explorer and then click the Run button.
Make sure the «m» in main() is lowercase this would also cause java not to see your main method, I’ve done that several times unfortunately.
Have you checked if:
I am a newbie who try to run a helloworld example and just got the same error as yours, and these work for me.
Check if the filename is same as the classname used by your program.
filename should be Dfs.java
It happens when sometimes we copy or import the project from somewhere. The source folder is a big thing to concern about.
One simple technique is, create a new project, inside the source folder, create a new class and paste the content over there.
Not the answer you’re looking for? Browse other questions tagged java eclipse or ask your own question.
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Конструкция There is / There are
Статья находится на проверке у методистов Skysmart.
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Наречие there
Наречие there значит «там». Перевод предложения с ним зависит от контекста.
Чаще всего мы используем слова «там» и «туда», когда говорим о конкретном месте:
Мы не знаем подробности этих ситуаций, но собеседник скорее всего поймет автора по жестам, мимике и общему контексту, в котором использовали there.
Кроме того, наречие there может стоять в начале предложения и сопровождать подлежащее — это и есть конструкция there is/are.
Смысл there is и there are
Впервые с оборотом there is/are школьники сталкиваются в 4 классе. Это полезная конструкция, которая делает речь более емкой вне зависимости от уровня владения английским.
Когда можно использовать конструкцию there is/are:
There is используется, когда говорим в единственном числе или используем неисчисляемые существительные.
There are — для множественного числа.
Число глагола to be принято определять по числу первого существительного, которое стоит после оборота:
Как использовать there is с неисчисляемыми существительными (uncountable nouns):
There is можно сократить и написать так: there’s. В неформальном диалоге такой вариант использовать намного проще:
Так можно сокращать is и are при отрицании:
Закрепить правила на практике можно на курсе обучения английскому языку от Skysmart. Подберите подходящий курс в нашем каталоге!
Правило перевода оборота there is/are на русский язык
Перевод предложения с оборотом there + be проще начинать с конца, то есть с обстоятельства места или сказуемого.
Обстоятельство места — это второстепенный член предложения, который обозначает место или направление действия и отвечает на вопросы: где? куда? откуда?
Если в предложении нет обстоятельства места, то перевод можно начать со слов «есть», «имеется», «существует», «бывает», «находится» и др.
Примеры предложений с переводом с оборотом there is/there are:
Такой вот интересный оборот. Рассмотрим порядок слов в предложении с there is и there are.
Структура предложений с there is и there are
В русском языке нет строгого порядка слов. Чтобы выделить важность места, можно начать предложение с него или выделить эту часть интонационно.
В английском языке порядок слов фиксированный. И так как мы привыкли начинать предложение с подлежащего, то будет странно поставить в начало «место». Поэтому в ход идет there.
Чтобы запомнить, что и за чем следует, используйте подсказку:
(обстоятельство места или времени)
И еще разок, чтобы точно запомнить: когда мы хотим сказать о местоположении — нужно ставить there is/are в начало предложения. Это поможет собеседнику быстрее сориентироваться, о чем мы говорим.
Временные конструкции
Оборот there is/there are показывает время Present Simple, когда мы говорим о настоящем. Но мы также можем сказать и о том, что предмет или лицо находились (Past Simple), или будут (Future Simple) находиться в определенном месте.
Оборот there is/there are можно применить в настоящем, прошедшем и будущем времени. Для этого нужно изменить глагол to be:
Мы знаем, что верно использовать there is для единственного числа, а there are — для множественного. Сейчас рассмотрим конкретные случаи в разных предложениях.
Утвердительные предложения
В утвердительной форме оборот there is/are используют так:
There is и there are в утвердительной форме
There is a cup here.
There are four plates here.
Здесь четыре тарелки.
There was a school at this place.
На этом месте была школа.
There were a few apples on the table.
На столе было несколько яблок.
There will be a tree in the backyard.
На заднем дворе будет дерево.
There will be two more chairs in the room.
В комнате будет еще два кресла.
Вопросительные предложения
Превратить утверждение в вопрос — лего! Для этого нужно сделать перестановку: подлежащее there поменять местами со сказуемым be. Вот так:
В вопросительном предложении к определению подлежащего можно еще добавить how many, how much или местоимение what:
При ответе на этот вопрос глагол to be можно использовать во множественном числе, если есть факт о наличии нескольких предметов или событий.
Если нам интересно узнать количество объектов, нужно использовать how many по такой формуле: how many + существительное во множественном числе + are there (+ дополнение).
А еще there можно использовать и в кратких и утверждающих вопросах:
Отрицательные предложения
В отрицательных предложениях после глагола to be ставят:
There is not (isn’t) any money in the wallet. — В кошельке нет денег.
There is no money in the wallet. — В кошельке нет денег.
В отрицательной форме оборот there is/are можно использовать так:
There is и there are в отрицательной форме
There is no (isn’t a) present in the box.
В коробке нет подарка.
There are no / aren’t
There are no (aren’t any) candles in the bedroom.
В спальне нет свечей.
There was no / wasn’t
There was no (wasn’t) gasoline in the car.
В машине не было бензина.
There were no / wasn’t
There were no (weren’t any) mistakes in his work.
В его работе не было ошибок.
There will be no / There won’t be any
There will be no (won’t be any) help.
There will be no / There won’t be any
There will be no (won’t be any) corrections.
Чтобы дать краткий отрицательный ответ, нужно использовать no, за которым следуют there и глагол to be в соответствующей форме с отрицательной частицей not:
— Is there a dog in the supermarket? (В супермаркете случайно есть собака?)
— No, there isn’t. (Нет, собаки нет в супермаркете.)
Когда нужно сказать о нулевом количестве чего-либо, то можно используовать there aren’t any:
То же самое касается неисчисляемых существительных:
Оборот there is и there are во временах Perfect
Оборот there is/are можно использовать во временах Perfect. В конструкциях типа there has been речь идет о действии, которое совершилось до момента речи, а результат при этом актуален на данный момент.
Как использовать there is и there are в Perfect:
There has been fish in the fridge.
В холодильнике была рыба.
There have been some problems lately.
В последнее время были кое-какие проблемы.
There had been а wedding that afternoon at the church.
Днем была свадьба в церкви.
There had been two weddings that afternoon at the church.
Днем в церкви было две свадьбы.
There will have been
There will have been a lot of money in the piggy bank.
В копилке будет много денег.
There will have been
There will have been Mary’s letters in the mail.
В почте будут письма от Мэри.
There has been no / hasn’t been
There has been no(hasn’t been a) guest here.
Здесь не было никакого гостя.
There has been no / hasn’t been
There has been no (hasn’t been any) people in my house.
В моем доме не было людей.
There had been no / hadn’t been
There had been no(hadn’t been a) key in the lock.
В замке не было ключа.
There had been no / hadn’t been
There had been no (hadn’t been any) plates on the table.
На столе не было тарелок.
There will have been no / There won’t have been
There will have been no (won’t have been any) profit in that.
В этом не будет никакой выгоды.
There will have been / There will have been no
There will have been no(won’t have been any) casualies.
Minecraft Wiki
The Minecraft Wiki is no longer considered as official by Microsoft and therefore several changes are required to be made, including to the wiki’s logo. Please read this announcement for more information.
Target selectors
Target selectors are used in commands to select players and entities arbitrarily, without needing to specify an exact player name or a UUID. One or more entities can be selected with a target selector variable, and targets can be filtered from the selection based on certain criteria using the target selector arguments.
For example, to change the game mode of all players to Creative mode, instead of specifying each of them by name individually:
/gamemode creative @a
Contents
Target selector variables [ ]
| Variable | Function |
|---|---|
| @p | nearest player |
| @r | random player |
| @a | all players |
| @e | all entities |
| @s | entity executing the command |
| @c | the player’s agent [ Education Edition only ] |
| @v | all agents [ Education Edition only ] |
| @initiator | the player who clicks an NPC dialogue button [ Bedrock Edition only ] |
A target selector variable identifies the broad category of targets to select. There are five (six in Bedrock Edition, seven in Education Edition) variables:
@p Targets the nearest player from the command’s execution. If there are multiple nearest players, caused by them being precisely the same distance away, the player who most recently joined the server is selected. In Bedrock Edition, @p only targets players who are alive. @r Targets a random player. Bedrock Edition can use @r to target non-player entities via the type selector argument; in Java Edition, to select a random entity, use @e[sort=random] instead. In Bedrock Edition, @r can only target entities who are alive. @a Targets every player, alive or not. @e Targets all alive entities (including players) in loaded chunks. @s Targets the entity (alive or not) that executed the command. It does not target anything if the command was run by a command block or server console. @c [ Education Edition only ] Target the player’s agent only. @v [ Education Edition only ] Target all agents. Works only if more than one agent exists. @initiator [ Bedrock Edition only ] Targets the player who interacts with a button in a JSON NPC dialogue.
Target selector arguments [ ]
Argument-value pairs appear within square brackets after the target selector variable, separated by commas:
In Java Edition, arguments and values are case-sensitive. Spaces are allowed around the brackets, equal signs, and commas, except in Java Edition between the target variable and the first bracket. Commas must be used to separate argument-value pairs.
If there are multiple argument-value pairs, they all must be satisfied to add a potential target to the group. (In other words, they are AND-ed together).
History [ ]
Issues [ ]
Issues relating to «Target selectors» are maintained on the bug tracker. Report issues there.
Fix “Could Not Find This Item” When Deleting in Windows
A pesky problem with 7 different solutions
Sometimes Windows shows a strange error message when you try to delete a file. The message reads “could not find this item” and it prevents you from deleting the file. It’s pretty obvious you’re trying to delete something that already exists on your machine but the error says otherwise.
There are many reasons why your machine is failing to detect the file as it should and letting you delete it. Once you fix these underlying issues, you can get rid of the file from your computer.
Use Command Prompt To Fix “Could Not Find This Item”
If you’re having trouble using File Explorer to delete your file, one option is to use the Command Prompt. It has several commands to work with your file system and one of these lets you delete files from your storage.
You can use these commands to retrieve your directory contents and then get rid of your chosen file from the list.
del myfile.txt
Rename The File Using Command Prompt Before Deleting It
Sometimes the reason you get the “could not find this item” error is because your file name is too long to be handled by your system. In that case, you can first shorten the name to delete the file.
You can use the Command Prompt to rename your file as follows.
ren oldname.ext newname.ext
ren – the short form for rename
oldname.ext – replace this with the current name of your file
newname.ext – replace this with the new name for your file
Delete Files That Have No Extension
Some problematic files have no extensions and this makes it really difficult to delete them from a Command Prompt window. Luckily, there’s a command you can use to delete all the files inside of a folder without knowing their extensions.
del *.*
Delete The Folder Containing The File
If you still can’t delete the file and it keeps throwing the “could not find this item” error, you can try deleting the folder instead. It removes the folder as well as all files in it, including the problematic file.
rmdir /s
Kill The Process That May Be Using The File
There may be a program running on your computer that is using your file in some way. To ensure it’s not the culprit, you should kill the program process using Task Manager and then try to delete the file.
Create An Archive & Delete The Files
If you’ve used WinRAR to create archives on your computer before, you probably know it allows you to delete your files after an archive is made. You can use the same option to delete the file that keeps throwing the “could not find this item” error.
The idea here is to make a new archive using your problematic file and let WinRAR delete your file after the archive has been made.
It’s an out-of-the-box idea and should work in most cases.
Use DelinvFile To Get Around The “Could Not Find This Item” Error
File deletion issues have long existed on Windows computers and there have been several apps to help you deal with them. One of these is DelinvFile and it lets you delete files that you can’t delete by yourself.
You can use it to get rid of the problematic files from your PC.
It gets frustrating when you’re constantly bombarded with the “could not find this item” error while deleting a file. Have you ever had to go through this error on your PC? How did you overcome it? We’d like to know in the comments below.
Mahesh has been obsessed with technology since he got his first gadget a decade or so ago. Over the last few years, he’s written a number of tech articles on various online publications including but not limited to MakeTechEasier and Android AppStorm. Read Mahesh’s Full Bio