Expert answer:Lab4 part 1 and 2, computer science assignment hel

  

Answer & Explanation:LAB work.
lab_4_part_i.docx

lab_4_part_ii.docx

input._txt.docx

output._txt.docx

doubles._txt.docx

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Lab 4 Part I
You are given a text file “input.txt”containing in each line the name of a
capital city followed by the name of the corresponding country
separated by tabulation “t”.
Write a program that reads each line in “input.txt” and appends only the
name of the capital city in “output.txt”.
Note: “output.txt”already contains a line of text. You should add to it
and do not overwrite it.
Example:
input.txt:
Paris France
London
UK
Lisbon
Portugal
Output.txt:
Paris
London
Lisbon
Lab 4 Part II
Write a program that reads a text file“doubles.txt” containing a double in each
line and outputs the sum of all the doubles in all the lines of the file as output.
Example:
Doubles.txt:
1.0
2.2
3.6
=> Output to the console should be 6.8
Paris
France
London UK
Lisbon Portugal
List of Cities:
6.2
3.2
4.1
2.5
…
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