Question

File Recovery: Restore the deleted file by founding its associated clusters. Input (by the evaluator): 1st line: the first cluster of each existing file in the root table 2nd line: the first row of the FAT table 3rd line: the second row of the FAT table Output: 1st line: clusters with the data of the deleted file (in the correct sequence) Example: Input: 2 7 2 3 4 5 6 7 8 3 4 0 6 8 0 0 Output: 5 6 8 code in java

Answer 1

#Open a file in read-write mode

f= open("myfile.txt", "w+") print ("Name of the file: ", f.name) # Assuming file has the following line txt = "This is 1st line of text file,"

f.writelines( txt)

seq = " This is 2nd line, This is 3rd line of text file" # Write sequence of lines at the end of the file.

f.seek(0, 2)

f.writelines( seq )

# Now read complete file from beginning.

f.seek(0,0)

line = f.readlines()

print ("Read Line: %s" % (line))

# Close the file

f.close()​

Answer:
1: Name of the file: myfile.txt
2: Read Line: This is 1st line of text file,
This is 2nd line,
This is 3rd line of text file
Explanation:
File has: "This is 1st line of text file,"
f open("'myfile.txt", "w+") It will overwrite
file content: null
fwritelines( txt) will write to file: "This is 1st
line of text file"
f.seek(0, 2): It will move cursor at end of
file
fwritelines( seq) it will write to file:" This
is 2nd line, This is 3rd line of text file"
f.seek(0,0) : Move cursor to beginning of
file
line = f.readlines): It will read all line from
file
print "Read Lin: %s", %(line)): It will print
lines