Iterating over a file like it's a list reads... O Everything in a file at once, into one string O Everything in a file at once, into a list One line from a file at a time O The number of characters in a file as an integer

Java Your program must read a file called personin.txt.  Each line of the file will be a person's name, the time they arrived at the professor's office, and the amount of time they want to meet with the professor.  These entries will be sorted by the time the person arrived.   Your program must then print out a schedule for the day, printing each person's arrival, and printing when each person goes in to meet with the professor.  You need to print the events in order of the time they happen.  In other words, your output will be sorted by the arrival times and the times the person goes into the professor's office. In your output you need to print out a schedule.  In the schedule, new students go to the end of the line.  Whenever the professor is free, the professor will either meet with the first person in line, or meet with the first person in line if nobody is waiting.  Assume no two people arrive at the same time. You should solve this problem using a stack and a queue. You can only…

Write a program that will input the contents of a text file containing integers then writes each number and the frequency of that number appearing in the file. The output should look like the following sample output: Number Frequency 1 2 3 3 Also, copy the contents of the text file under your code Hints: Sort the list in ascending order before counting the numbers.

Python Soulution to 1

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This is phython not Java Lab:  Write a file copying program.  The program asks for the name of the file to copy from (source file) and the name of the file to copy to (destination file).  The program opens the source file for reading and the destination file for writing.  As the program reads each line from the source file and it writes the line to the destination file.  When every line from the source file has been written to the destination file, it close both files and print “Copy is successful.” In the sample run, “add.py” is the source file and “add-copy.py” is the destination file.  Note that both “add-copy.py” is identical to “add.py” because “add-copy.py” is a copy of “add.py”. Sample run: Enter file to copy from: add.py Enter file to copy to  : add-copy.py Copy is successful.   Source file: add.py print("This program adds two numbers")   a = int(input("Enter first number: ")) b = int(input("Enter second number: "))   print(f"{a} + {b} = {a+b}")   Destination…

Create a program that reads data from a file and writes data to the file.... Use a list to store the data readfrom the file.... The data that you will have is a grocery list. Store data read from file in a list. The usershould be able to see the list and add to it.