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Python: Find string in a file and print which line it was found on [closed]

由 北城以北 提交于 2020-01-30 13:04:39
问题 Closed . This question needs details or clarity. It is not currently accepting answers. Want to improve this question? Add details and clarify the problem by editing this post. Closed 6 years ago . I have been browsing stack overflow for ages now and could not find a solution to this. I need to find a string in a txt file, and then print which line that string was found on. Being the idiot I am, I could not figure this out myself, and I could not find an answer here. And thus, I need a

Scanner is skipping nextLine() after using next() or nextFoo()?

由 我的未来我决定 提交于 2020-01-30 12:28:07
问题 I am using the Scanner methods nextInt() and nextLine() for reading input. It looks like this: System.out.println("Enter numerical value"); int option; option = input.nextInt(); // Read numerical value from input System.out.println("Enter 1st string"); String string1 = input.nextLine(); // Read 1st string (this is skipped) System.out.println("Enter 2nd string"); String string2 = input.nextLine(); // Read 2nd string (this appears right after reading numerical value) The problem is that after

Writing a stream of 9 bit values as bytes to a file in C

由 无人久伴 提交于 2020-01-30 09:05:20
问题 I have an array with integer values from 0-511 (9 bits max). I am trying to write this to a file with fwrite . For Example, with the array: [257, 258, 259] Which is 100000001, 100000010, 100000011 I am trying to write 100000001100000010100000011 + extra padding of 0s to the file But since fwrite limits writes to 1 byte at a time, I am not sure how to go about doing this. I am new to bitwise operations and am not how to separate out the individual bytes. 回答1: You need a bit buffer. Since you

Unhandled Exception Type IOException [duplicate]

由 泪湿孤枕 提交于 2020-01-30 08:09:24
问题 This question already has answers here : Closed 7 years ago . Possible Duplicate: Why do I get the “Unhandled exception type IOException”? I'm trying to solve Euler #8 using the following algorithm. Problem is, whenver I modify the line I have the giant comment on, the error Unhandled Exception Type IOException appears on each line that I've marked with the comment //### . private static void euler8() { int c =0; int b; ArrayList<Integer> bar = new ArrayList<Integer>(0); File infile = new

Unhandled Exception Type IOException [duplicate]

由 我的梦境 提交于 2020-01-30 08:09:05
问题 This question already has answers here : Closed 7 years ago . Possible Duplicate: Why do I get the “Unhandled exception type IOException”? I'm trying to solve Euler #8 using the following algorithm. Problem is, whenver I modify the line I have the giant comment on, the error Unhandled Exception Type IOException appears on each line that I've marked with the comment //### . private static void euler8() { int c =0; int b; ArrayList<Integer> bar = new ArrayList<Integer>(0); File infile = new

Unhandled Exception Type IOException [duplicate]

由 |▌冷眼眸甩不掉的悲伤 提交于 2020-01-30 08:08:54
问题 This question already has answers here : Closed 7 years ago . Possible Duplicate: Why do I get the “Unhandled exception type IOException”? I'm trying to solve Euler #8 using the following algorithm. Problem is, whenver I modify the line I have the giant comment on, the error Unhandled Exception Type IOException appears on each line that I've marked with the comment //### . private static void euler8() { int c =0; int b; ArrayList<Integer> bar = new ArrayList<Integer>(0); File infile = new

Crawling Android File System gets stuck in possible SymLink loop

由 会有一股神秘感。 提交于 2020-01-28 12:32:01
问题 I'm trying to crawl the entire file system of an android device, both directories and files, without the benefit of NIO, to build a tree of it. If I had NIO then I could use WalkTree or similar, but I don't. The problem I am having (on the Nexus 5 API 23 x86 emulator) is in /sys/bus/pci/devices and possibly other directories (eg /proc/self ) - it doesn't complete before the app times out/quits/crashes (unknown which), possibly getting into some kind of loop or something (the path may change

java简单实现webservice接口

由 自作多情 提交于 2020-01-28 03:21:53
java简单实现webservice接口 webservice实现有多种方式 比如最常用的有axis框架，xfire框架，通过该框架可以发布wsdl接口，也可以实现webservice客户端，目前eclipse都有集 成的插件，可以根据wsdl文件生成webservice客户端调用接口，但是这样部署的时候必须依赖框架的jar包，有时候可能因为环境等等原因，我们 仅仅需要wsdl中的某一个接口，这时候可以通过http接口或socket接口直接发生xml数据，来调用服务端webservice服务，其实 webservice底层还是发送xml数据，只是框架封装了对xml数据进行序列化与反序列化操作，下面以两个简单的例子说明http方式和 socket方式。 http实现webservice接口调用例子： [c-sharp] view plain copy import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; import java.io.OutputStreamWriter; import java.io.UnsupportedEncodingException; import java.net.MalformedURLException; import

eof() is returning last character twice [duplicate]

由 ℡╲_俬逩灬. 提交于 2020-01-25 20:28:26
问题 This question already has answers here : Why is iostream::eof inside a loop condition (i.e. `while (!stream.eof())`) considered wrong? (4 answers) Closed 4 years ago . I am reading in from an input file "input.txt" which has the string 'ABCDEFGH' and I am reading it in char by char. I am doing this using the code: ifstream plaintext (input.txt); char ch; if (plaintext.is_open()) { while(!plaintext.eof()){ plaintext.get(ch); cout<<ch<<endl; } plaintext.close(); } The string 'ABCDEFGHH' is
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