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horsena [70]
3 years ago
11

Which of the following statements opens the file info.txt for both input and output? a) dataFile.open("info.txt", ios::in &&

amp; ios::out); b) dataFile.open("info.txt", ios::in , ios::out); c) dataFile.open("info.txt", input || output); d) dataFile.open("info.txt", ios::in | ios::out);
Computers and Technology
2 answers:
torisob [31]3 years ago
6 0

Answer:

D

Explanation: Choice D

azamat3 years ago
3 0

Answer:

Correct answer is D

Explanation:

open is a function in c++ programming language used to interact with files.The function takes two parameters as input

  1. File name
  2. mode

File Name

File name is a string name of file to be opened.This is a compulsory parameter for open method.

Mode

Mode is an optional parameter in open function.Following are the accepted values of mode parameter

Prefix ios:: is added to start of each

  1. in (Open file in input mode for writing data to file)
  2. out (Open file in output / read-only mode to read data from file)
  3. binary (Open file in binary format)
  4. ate (Set the starting point of file to the end of file. Default starting point of file is start of file)
  5. "trunc" (If file is opened multiple times all previous data is replaced with new data)
  6. app (All operations of output are performed the end of file)

Use | operator to use multiple modes at a time.

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Answer:

C

Explanation:

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3 years ago
Write a function named initialMatch that takes a string parameter, text, that contains only lowercase letters and whitespace. Th
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Answer:

Implementing on Python for the question, the following is the code.

Explanation:

def intialMatch(l):

   word_dict={}

   for word in l.split():

       if word_dict.get(word)==None:

           word_dict[word]=[]

       for key in word_dict.keys():

           if key[0]==word[0] and (word is not key) :

               values = word_dict.get(key)

               if word not in values:

                   values.append(word)

       for key,values in word_dict.items():

           for value in values:

               if value==key:values.remove(value)

   return word_dict

t='do what you can with what you have'

print(intialMatch(t))

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Answer:

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b) power saving = 48%

c) Power saving = 61%

d) Power saving = 25.3%

Explanation:

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Select the correct answer.
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the answer is E. ............

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