Why does the file stream member function open's second argument exist?
Q: What is the purpose of the second parameter to the file stream member function open?
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Why does the file stream member function open's second argument exist?
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- What is the purpose of the second parameter to the file stream member function open?The function file_first_chars in python takes one parameter, fname, the name of a text file, and returns a string made up of the first character from each line in the file. You may assume there are no blank lines in the file. Hint: Use a for loop to iterate over the lines of the file and accumulate the string of first characters. NOTE: Return the function, don't print For example: Test Result print(file_first_chars("wordlist1.txt")) hsaemWrite code that opens an output file with the filename number_list.txt, but does not erase the file’s contents if it already exists.
- TRUE FALSE The dereference operator * is used to obtain the address of a variable. The void functions return noting when called. the flag eof() is FALSE at the beginning of a text file. There is no way to show text on graphic screen The reserved word struct is used when declaring a void function.Q3:IN SML language how would I write a string to integer function that inputs a filename and returns zero if the contents inside the file is blank.The python function get_second_line takes one parameter, fname, the name of a text file. The function should open the file for reading, determine the second line of the file, close the file, and return the second line (a string). NOTE: You may assume the file will have at least two lines.
- In c++ write a code that tells a user to enter a filename and read that text file line by line.The function print_last_line in python takes one parameter, fname, the name of a text file. The function should open the file for reading, read the lines of the file until it reaches the end, print out the last line in the file, report the number of lines contained in the file, and close the file. Hint: Use a for loop to iterate over the lines and accumulate the count. For example: Test Result print_last_line("wordlist1.txt") maudlin The file has 5 lines.State if true or false: The stream's overloaded bool cast operator returns true to indicate end-of-file, when an attempt is made to read past the end of a stream.
- The python function file_first_chars takes one parameter, fname, the name of a text file, and returns a string made up of the first character from each line in the file. You may assume there are no blank lines in the file. Hint: Use a for loop to iterate over the lines of the file and accumulate the string of first characters.Data File: Example #1AAAAABBBBBCCCCCDDDDDAAEBCBAFBBCDCECDADDEFEEFFFExample #2AAATAABTBBBBCCCCTCDDTDDDAASAABBSBBCCSCCDSDDDEEEAEEFBFFFDDF Write a program that will give the user a brief introduction, then allow the user to type in the name of the file to be analyzed, the name of the data file to generate, and then process the data to match the output that is shown below. This DNA test measures the various parts of the sequence and assigns them a letter. While the letters could be anything from A to Z, the only letters that matter for this test are the letters {A,B,C,D} all other letters can be ignored completely. A sample will be tested, given a length of time and then tested again. Each time the scientist will generate a line of data. Here is one Example: Example #1 AAAAABBBBBCCCCCDDDDD AAEBCBAFBBCDCECDADDEFEEFFF At first glance the sample looks significantly different after the second test. But if you look at the data, you will note that since we only care about A,B,C,D’s that the…In c language,using pointer and for loop Code level: Beginners