output

问题 I\'m using Eclipse to code in C/C++ and I\'m struggling with what might be something pretty easy. In my code below I use printf() and after scanf() . Althougth printf is written before scanf() the output differs. I was able to find out something about similar issue here. But I wasn\'t able to solve it. Any ideas? Code: #include <stdio.h> int main() { int myvariable; printf(\"Enter a number:\"); scanf(\"%d\", &myvariable); printf(\"%d\", myvariable); return 0; } Expected output: Enter a number

问题 I can\'t figure out why my while loop won\'t work. The code works fine without it... The purpose of the code is to find a secret message in a bin file. So I got the code to find the letters, but now when I try to get it to loop until the end of the file, it doesn\'t work. I\'m new at this. What am I doing wrong? main(){ FILE* message; int i, start; long int size; char keep[1]; message = fopen(\"c:\\\\myFiles\\\\Message.dat\", \"rb\"); if(message == NULL){ printf(\"There was a problem reading

问题 How can I create an instance of the Java console inside of a GUI panel? 回答1: Here's a functioning class. You can install an instance of this into the system out and err using: PrintStream con=new PrintStream(new TextAreaOutputStream(...)); System.setOut(con); System.setErr(con); Updated 2014-02-19 : To use EventQueue.invokeLater() to avoid GUI threading issues which can crop up very rarely with the original. Updated 2014-02-27 : Better implementation Updated 2014-03-25 : Correct recording &

问题 I want to print out the contents of a vector in C++, here is what I have: #include <iostream> #include <fstream> #include <string> #include <cmath> #include <vector> #include <sstream> #include <cstdio> using namespace std; int main() { ifstream file(\"maze.txt\"); if (file) { vector<char> vec(istreambuf_iterator<char>(file), (istreambuf_iterator<char>())); vector<char> path; int x = 17; char entrance = vec.at(16); char firstsquare = vec.at(x); if (entrance == \'S\') { path.push_back(entrance

问题 How can you write to multiple outputs dependent on the key using Spark in a single Job. Related: Write to multiple outputs by key Scalding Hadoop, one MapReduce Job E.g. sc.makeRDD(Seq((1, \"a\"), (1, \"b\"), (2, \"c\"))) .writeAsMultiple(prefix, compressionCodecOption) would ensure cat prefix/1 is a b and cat prefix/2 would be c EDIT: I\'ve recently added a new answer that includes full imports, pimp and compression codec, see https://stackoverflow.com/a/46118044/1586965, which may be