lines

问题 I am using JTextArea in JScrollPane I want to limit the maximum number of lines possible and the maximum chars in each line. I need that the string will be exactly like on the screen, each line will end with '\n' (if there another line after it) and the user will be able to insert only X lines and Y chars in each line. I tried to limit the lines but I don't know exactly how many lines do I have because of the line wrapping, The line wrapping is starting new line visually on the screen(because

问题 I think I may have stumbled onto a limitation of Flot, but I'm not sure. I'm trying to represent a single data series over time. The items' "State" is represented on the Y-Axis (there are 5 of them), and time is on the X-Axis (items can change states over time). I want the graph to have points and lines connecting those points for each data series. In addition to tracking an item's State over time, I'd also like to represent it's "Status" at any of the particular points. This I would like to

问题 While looking around for a while I found quite a few discussions on how to figure out the number of lines in a file. For example these three: c# how do I count lines in a textfile Determine the number of lines within a text file How to count lines fast? So, I went ahead and ended up using what seems to be the most efficient (at least memory-wise?) method that I could find: private static int countFileLines(string filePath) { using (StreamReader r = new StreamReader(filePath)) { int i = 0;

问题 Can't understand how to count lines. Here is my code. void load() throws IOException { File sdcard = Environment.getExternalStorageDirectory(); File file = new File(sdcard,"agenda.file"); StringBuilder text = new StringBuilder(); try { BufferedReader br = new BufferedReader(new FileReader(file)); String line; while ((line = br.readLine()) != null) { text.append(line); text.append('\n'); TextView te=(TextView)findViewById(R.id.textView1); } } catch (IOException e) { //You'll need to add proper

问题 Can't understand how to count lines. Here is my code. void load() throws IOException { File sdcard = Environment.getExternalStorageDirectory(); File file = new File(sdcard,"agenda.file"); StringBuilder text = new StringBuilder(); try { BufferedReader br = new BufferedReader(new FileReader(file)); String line; while ((line = br.readLine()) != null) { text.append(line); text.append('\n'); TextView te=(TextView)findViewById(R.id.textView1); } } catch (IOException e) { //You'll need to add proper

问题 I know that I can use: gc c:\FileWithEmptyLines.txt | where {$_ -ne ""} > c:\FileWithNoEmptyLines.txt to remove empty lines. But How I can remove them with '-replace' ? 回答1: I found a nice one liner here >> http://www.pixelchef.net/remove-empty-lines-file-powershell. Just tested it out with several blanks lines including newlines only as well as lines with just spaces, just tabs, and combinations. (gc file.txt) | ? {$_.trim() -ne "" } | set-content file.txt See the original for some notes

问题 Closed. This question is off-topic. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 4 months ago . I'm working on an implementation of the tail function and I'm only supposed to use read() , write() and lseek() for I/O, and so far I have this: int printFileLines(int fileDesc) { char c; int lineCount = 0, charCount = 0; int pos = 0, rState; while(pos != -1 && lineCount < 10) { if((rState = read(fileDesc, &c,

问题 In Bash, how do I count the number of non-blank lines of code in a project? 回答1: cat foo.c | sed '/^\s*$/d' | wc -l And if you consider comments blank lines: cat foo.pl | sed '/^\s*#/d;/^\s*$/d' | wc -l Although, that's language dependent. 回答2: #!/bin/bash find . -path './pma' -prune -o -path './blog' -prune -o -path './punbb' -prune -o -path './js/3rdparty' -prune -o -print | egrep '\.php|\.as|\.sql|\.css|\.js' | grep -v '\.svn' | xargs cat | sed '/^\s*$/d' | wc -l The above will give you

问题 I have a text file say really_big_file.txt that contains: line 1 line 2 line 3 line 4 ... line 99999 line 100000 I would like to write a Python script that divides really_big_file.txt into smaller files with 300 lines each. For example, small_file_300.txt to have lines 1-300, small_file_600 to have lines 301-600, and so on until there are enough small files made to contain all the lines from the big file. I would appreciate any suggestions on the easiest way to accomplish this using Python

问题 I've got the code below - it uploads an image to the server (which actually works) and then inserts the link to the image and some other information into a database. Somehow it skips the database-insert part in mysqli every single time . What am I doing wrong? Even when I do insert echo's between the mysqli-part lines, it doesn't echo them. Is this code seriously getting skipped or am I missing something pretty obvious? <?php //Handle IMG Upload - copyied from w3schools //THIS WORKS! $target