What does the following code do?FileInputStream fis = new FileInputStream("test.dat");OptionsIt thows an error if the file named test.dat does not exist and opens the file, if it exists, so you can read from it and write into it, if write permission is available.It creates a new file named test.dat if it does not exist and opens the file so you can write to it, if write permission is available.It creates a new file named test.dat regardless of whether it exists or not and opens the file so you can write to it, if write permission is available.It creates a new file named test.dat regardless of whether it exists or not and opens the file so you can read from it and write to it, if write permission is available.

In Java, what does the FileWriter class do?Question 3Answera.Reads data from a fileb.Writes data to a filec.Deletes a filed.Checks if a file exists

Which of the following statements are true?When you open a file for reading, if the file does not exist, an error occursWhen you open a file for writing, if the file does not exist, a new file is createdWhen you open a file for writing, if the file exists, the existing file is overwritten with the new fileAll of the mentioned

Which of these class is used to read characters in a file?OptionsFileWriterFileReaderFileInputStreamInputStreamReader

The following statement declares a StreamReader object called “reader”. Which statement opens a file named “data.txt” to the StreamReader object?streamReader reader;Question 1Select one:a.reader = OpenFile("data.txt");b.reader = open("data.txt");c.reader = File.OpenText("Data.txt");d.reader = File.OpenFile("Data.txt");Clear my choiceQuestion 2Not yet answeredMarked out of 1Flag questionTipsQuestion textAssuming openFile is the name of an OpenFileDialog control, which expression can call the ShowDialog method and determine whether the user clicks the Open button?Question 2Select one:a.if (openFile.ShowDialog() == true)b.if (openFile.ShowDialog() == DialogResult.Open)c.if (openFile.ShowDialog() == DialogResult.OK)d.if (openFile.ShowDialog() == OK)Clear my choiceQuestion 3Not yet answeredMarked out of 1Flag questionTipsQuestion textWhich statement will write a persons firstname and surname to a textfile on one line? (Assume that the StreamWriter variable writer has been declared and has access to the file and that the variables firstname and surname have been declared and have values in them).Question 3Select one:a.writer(firstname + " " + surname);b.writer = WriteLine (firstname + " " + surname);c.writer.WriteLine(firstname + " " + surname);d.writer.WriteLine(firstname , " " , surname);Clear my choiceQuestion 4Not yet answeredMarked out of 1Flag questionTipsQuestion textWhich statement will correctly read an integer value from a text file?  (Assume that the StreamReader object reader has been declared and has access to the file and the integer variable number has been declared.  Assume that there is one integer value per line in the file).Question 4Select one:a.number = reader.ReadLine();b.number = reader.ReadLine().Parse();c.number = int.Parse(reader.ReadLine());d.number = (int) reader.ReadLine();Clear my choiceQuestion 5Not yet answeredMarked out of 1Flag questionTipsQuestion textWhich statement will correctly read a line of text from a text file?  (Assume that the StreamReader object reader has been declared and has access to the file and the string variable line has been declared).Question 5Select one:a.line = reader.ReadLine();b.reader = ReadLine();c.reader.ReadLine();d.line = reader.Rea

What do the following lines of code do?with open("Example1.txt","r") as file1: FileContent=file1.read() print(FileContent)