Recent questions tagged io

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770 views

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io - How do I copy and paste data into R from the clipboard?

I have my data open in another application (e.g. a spreadsheet, like Excel, or a text editor). If I copy that ... it into R as a data.frame? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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672 views

1 answer

io - How to make a folder hidden using java

I want to create a hidden folder using java application. That program should work across platform. So How to ... directory which is not hidden. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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752 views

1 answer

io - How to use readline() method in Java?

I am beginner in Java, and I was reading the topic of giving values to variables through the readLine() ... and float value into floatnumber? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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722 views

1 answer

io - Java Read Large Text File With 70million line of text

I have a big test file with 70 million lines of text. I have to read the file line by line. I used ... Is there another approach that can make this task faster? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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732 views

1 answer

io - Editing specific line in text file in Python

Let's say I have a text file containing: Dan Warrior 500 1 0 Is there a way I can edit a specific line ... replacing Warrior with Mage. But can I even do that? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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698 views

1 answer

io - How to read a line from the console in C?

What is the simplest way to read a full line in a C console program The text entered might have a variable ... we can't make any assumption about its content. Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.1k views

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io monad - How to get normal value from IO action in Haskell

I have the following function: get :: Chars -> IO Chars get cs = do char <- getChar let (dats, ... extract and repackage them. It seems unnecessary. Thanks! Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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775 views

1 answer

io - Create a new line in Java's FileWriter

I have coded the following FileWriter: try { FileWriter writer = new FileWriter(new File("file.txt"), false); String ... can be done to solve this? Thank you. Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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854 views

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io - Beginner Python: Reading and writing to the same file

Started Python a week ago and I have some questions to ask about reading and writing to the same files. I've gone ... thing. I am using Python 2.7. Thanks! Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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771 views

1 answer

io - How to simulate keyboard presses in java?

I want to run a java program and have it simulate keyboard presses. So it could for example, type some text on a focused input box. Is this possible? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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703 views

1 answer

io - Python multiprocessing safely writing to a file

I am trying to solve a big numerical problem which involves lots of subproblems, and I'm using Python's ... How do I avoid writing collisions like this? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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743 views

1 answer

io - Why are the elements of an array formatted as zeros when they are multiplied by 1/2 or 1/3?

I'm writing out the elements of an array as follows: write(6,'(i4,200(1x,e15.7))')Jtot0, (a*PJjv(i,Jtot0,j ... I'm obligated to multiply by a factor of 1/3? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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858 views

1 answer

io - How to read integer value from the standard input in Java

What class can I use for reading an integer variable in Java? Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

779 views

1 answer

io - Easy way to write contents of a Java InputStream to an OutputStream

I was surprised to find today that I couldn't track down any simple way to write the contents of an InputStream to an ... 0, len); len = in.read(buffer); } Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

1.4k views

1 answer

io - A non-blocking read on a subprocess.PIPE in Python

I'm using the subprocess module to start a subprocess and connect to its output stream (standard output). ... subprocess.PIPE) output_str = p.stdout.readline() Question&Answers:os...

asked Oct 16, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

1.0k views

1 answer

io - Reading file as continous stream using Rust

I am writing a rust program that attach to multiple logs file and process elements as soon as new rows are ... .com/questions/65858731/reading-file-as-continous-stream-using-rust...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

855 views

1 answer

io - Python - Read Multiple Files & Write To Multiple New Files

I know there's a lot of content about reading & writing out there, but I'm still not quite finding ... /questions/65859367/python-read-multiple-files-write-to-multiple-new-files...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

697 views

1 answer

io - Python: read list of numbers, convert from string back to individual numbers

If I'm reading a list of numbers from a text file 5 12 8 11 7 4 3 5 5 3 2 1, they'll ... /65865505/python-read-list-of-numbers-convert-from-string-back-to-individual-numbers...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

942 views

1 answer

io - Haskell: How to use a where statement under a do block

This question already has an answer here: question from:https://stackoverflow.com/questions/65888624/haskell-how-to-use-a-where-statement-under-a-do-block...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

784 views

1 answer

io - C program to count lines in a .txt file fails in some cases

This question already has answers here: question from:https://stackoverflow.com/questions/65894549/c-program-to-count-lines-in-a-txt-file-fails-in-some-cases...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

805 views

1 answer

io - IPython: redirecting output of a Python script to a file (like bash >)

I have a Python script that I want to run in IPython. I want to redirect (write) the output to a file, ... /ipython-redirecting-output-of-a-python-script-to-a-file-like-bash...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

692 views

1 answer

io - How can I clear the Scanner buffer in Java?

I have something like this: Scanner in=new Scanner(System.in); int rounds = 0; while (rounds < 1 || rounds > ... .com/questions/10604125/how-can-i-clear-the-scanner-buffer-in-java...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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918 views

1 answer

io - How can I clear the Scanner buffer in Java?

I have something like this: Scanner in=new Scanner(System.in); int rounds = 0; while (rounds < 1 || rounds > ... .com/questions/10604125/how-can-i-clear-the-scanner-buffer-in-java...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

778 views

1 answer

io - How do you "empty" a StringWriter in Java?

What is the correct way to "empty" a StringWriter in Java so that I can reuse the StringWriter without having to ... .com/questions/3738095/how-do-you-empty-a-stringwriter-in-java...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

875 views

1 answer

io - How do you "empty" a StringWriter in Java?

What is the correct way to "empty" a StringWriter in Java so that I can reuse the StringWriter without having to ... .com/questions/3738095/how-do-you-empty-a-stringwriter-in-java...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

842 views

1 answer

io - How do you "empty" a StringWriter in Java?

What is the correct way to "empty" a StringWriter in Java so that I can reuse the StringWriter without having to ... .com/questions/3738095/how-do-you-empty-a-stringwriter-in-java...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

765 views

1 answer

io - What is the best epoll/kqueue/select equvalient on Windows?

What is Windows' best I/O event notification facility? By best I mean something that ... doesn't have a limit ... /67082/what-is-the-best-epoll-kqueue-select-equvalient-on-windows...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

838 views

1 answer

io - How to simulate keyboard presses in java?

I want to run a java program and have it simulate keyboard presses. So it could for example, type some ... .com/questions/7745959/how-to-simulate-keyboard-presses-in-java...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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