inputstream

[Solved] Java Incompatible types: inputstream cannot be converted to scanner

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private ArrayList<Student> readFile() throws FileNotFoundException { String fName = “p02-students.txt”; Scanner scan = new Scanner(new File(fName)); ArrayList<Student> studentList = new ArrayList<Student>(); while (scan.hasNext()) { String studentType = scan.next(); if (studentType.equals(“C”)) { studentList.add(readOnCampusStudent(scan)); } else { studentList.add(readOnlineStudent(scan)); } scan.nextLine(); } scan.close(); return studentList; } I didn’t get the error you mentioned earlier, but I was getting … Read more

[Solved] Taking input of integers until a newline in C/C++ [duplicate]

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Likely duplicate of: How to read groups of integers from a file, line by line in C++ If you want to deal in a line per line basis: int main() { std::string line; std::vector< std::vector<int> > all_integers; while ( getline( std::cin, line ) ) { std::istringstream is( line ); all_integers.push_back( std::vector<int>( std::istream_iterator<int>(is), std::istream_iterator<int>() ) ); … Read more

[Solved] Two streams and one file

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It depends on your operating system. On Windows the new FileOutputStream(…) will probably fail. On Unix-line systems you will get a new file while the old one continues to be readable. However your copy loop is invalid. available() is not a test for end of stream, and it’s not much use for other purposes either. … Read more

[Solved] What is the relation between InputStream, BuffreredInputStream, InputStreamReader and BufferedReader? [closed]

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InputStream is parent class of all input streams and readers. Classes that have Stream keyword will work with bytes whereas classes which have Reader keyword will work with characters. Buffer is wrapper around these streams to decrease the system calls and increase performance and speed of reading. Non buffered streams return single byte each time … Read more