writer

Remove specific character from a csv file, and rewrite to a new file

泪湿孤枕 提交于 2020-04-11 07:57:25
问题 I have a VBA macro pulling stock data every 5 minutes on the entire NYSE. This pulls everything from current price, to earnings dates, to p/e, among other metrics. I'm now trying to set up a cronjob to run a little python code to clean up the csv data before I import it into the mySQL database. Before I can set up the cronjob, I need to get the python code working... Baby steps :). I went away from python a few years ago, but am trying to use it again here. After some research, it's been

Buffered Writer Java Limit / Issues

坚强是说给别人听的谎言 提交于 2020-01-26 03:43:06
问题 I have a buffered writer that is writing to a text file. For some reason the writer stops writing a long string about half way through. Are there any known issues with using the buffered Writer in java? 回答1: Are you closing the writer? writer.close(); 回答2: Before writing large text into file, use obj_BufferedWriter.flush(). 来源: https://stackoverflow.com/questions/15623374/buffered-writer-java-limit-issues

Spring Batch: Writing data to multiple files with dynamic File Name

一世执手 提交于 2019-12-30 04:58:10
问题 I have a requirement to get the data from a database and write that data to files based on the filename given in the database. This is how data is defined in the database: Columns --> FILE_NAME, REC_ID, NAME Data --> file_1.csv, 1, ABC Data --> file_1.csv, 2, BCD Data --> file_1.csv, 3, DEF Data --> file_2.csv, 4, FGH Data --> file_2.csv, 5, DEF Data --> file_3.csv, 6, FGH Data --> file_3.csv, 7, DEF Data --> file_4.csv, 8, FGH As you see, basically the file names along with the data is

How do I output data to a CSV file with headers?

邮差的信 提交于 2019-12-24 02:18:35
问题 I want to output this data to a csv file. Currently, it's not appending anything when getting to the css_selector the text is not being appended. I want to append it to a list, then in a dataframe and then to a csv file. list1=[] for i, j in df1.iterrows(): name = j[1] id1 = j[2] sleep(3) BI_box = WebDriverWait(driver, 10).until(EC.presence_of_element_located((By.ID,'BI'))) BI_box.send_keys(id1) Last_Name_box = WebDriverWait(driver, 10).until(EC.presence_of_element_located((By.ID,'last')))

java write the list string into csv file

老子叫甜甜 提交于 2019-12-23 04:58:10
问题 I have some array strings like the following (note that there is space after each player which shows different lines...), ["user1","track1","player1", "user1","track2","player2", "user1","track3","player3", ...] I would like to divide this array into two parts (almost equal) based on the number of lines (spaces here). So, for example if there is 40 spaces in this array, I need to store the lines starting from the first to the half(20th line) in a file (let's call it file A) and put the rest

Write text file in UCS-2 Little Endian, Java

▼魔方 西西 提交于 2019-12-20 03:28:16
问题 I'm trying to write .txt file and it have to be UCS-2 Little Endian, but when I tried writer = new PrintWriter(path, "UTF-16LE"); From what I read it should be the same, but it won't work in specific application on server. When I open file which works (created manually) in Notepad++ it says that it's "UCS-2 Little Endian" but when it's created in Java like this it says "UCS-2 LE w/o BO" and server cannot read it. How could I write it so it will work? This is whole code: writer = new

State transition diagram for reader writer problem

老子叫甜甜 提交于 2019-12-19 11:27:35
问题 I'm not understanding my professor means when he says the write flag and read flag. Does 0 mean it is triggered? He wants us to draw a state transition diagram but I think I can do that myself if I knew what was going on. +---------+------------+-----------+----------------+ | Counter | Write flag | Read flag | Interpretation | +---------+------------+-----------+----------------+ | 0 | 0 | 0 | Write locked | | 0 | 0 | 1 | Invalid | | 0 | 1 | 0 | Invalid | | 0 | 1 | 1 | Available | | N | 0 |