Java: An Introduction to Problem Solving and Programming (8th Edition)
8th Edition
ISBN: 9780134462035
Author: Walter Savitch
Publisher: PEARSON
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Chapter 10.4, Problem 16STQ
Program Plan Intro
- Import the required header files.
- Define the class “Main”.
- Define the main method.
- The “ObjectInputStream” is used to read a data from the binary files.
- The “fromFile” is the object of the “ObjectInputStream” stream class.
- The “FileInputStream” is an output stream used for reading data from a “File”. It allows to open a file “stuff.data” for reading binary data and to establish the connection within it.
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Write a JAVA program that reads the student information from a tab separated values (tsv) file. The program then creates a text file that records the course grades of the students. Each row of the tsv file contains the Last Name, First Name, Midterm1 score, Midterm2 score, and the Final score of a student. A sample of the student information is provided in StudentInfo.tsv. Assume the number of students is at least 1 and at most 20. Assume also the last names and first names do not contain whitespaces.
The program performs the following tasks:
Read the file name of the tsv file from the user.
Open the tsv file and read the student information.
Compute the average exam score of each student.
Assign a letter grade to each student based on the average exam score in the following scale:
A: 90 =< x
B: 80 =< x < 90
C: 70 =< x < 80
D: 60 =< x < 70
F: x < 60
Compute the average of each exam.
Output the last names, first names, exam scores, and letter grades of the…
Write a program that reads student information from a text file, then creates a text file that records the course grades of the students and a final grade. Each row of the .txt file contains the Last Name, First Name, Midterm1 score, Midterm2 score, and the Final score of a student, each separated by a space. A sample of the student information is provided in StudentInfo.txt below. Assume the number of students is at least 1 and at most 20.
The program performs the following tasks:
• Read the file name of the .txt file from the user.
• Open the .txt file and read the student information using readline() or readlines().
• Compute the average exam score of each student.
• Assign a letter grade to each student based on the average exam score in the following scale:
◦ A: 90 =< x
◦ B: 80 =< x < 90
◦ C: 70 =< x < 80
◦ D: 60 =< x < 70
◦ F: x < 60
• Output the first names, last names, exam scores, and letter…
Write a program in Python that reads student information from a text file, then creates a text file that records the course grades of the students and a final grade. Each row of the .txt file contains the Last Name, First Name, Midterm1 score, Midterm2 score, and the Final score of a student, each separated by a space. A sample of the student information is provided in StudentInfo.txt below. Assume the number of students is at least 1 and at most 20. The program performs the following tasks: • Read the file name of the .txt file from the user. • Open the .txt file and read the student information using readline() or readlines(). • Compute the average exam score of each student. • Assign a letter grade to each student based on the average exam score in the following scale: ◦ A: 90 =< x ◦ B: 80 =< x < 90 ◦ C: 70 =< x < 80 ◦ D: 60 =< x < 70 ◦ F: x < 60 • Output the first names, last names, exam scores, and letter grades of the students into a text file named…
Chapter 10 Solutions
Java: An Introduction to Problem Solving and Programming (8th Edition)
Ch. 10.1 - Why would anybody write a program that sends its...Ch. 10.1 - When we discuss input, are we referring to data...Ch. 10.1 - What is the difference between a text file and a...Ch. 10.2 - Write some code that will create a stream named...Ch. 10.2 - Prob. 5STQCh. 10.2 - Prob. 6STQCh. 10.2 - Prob. 7STQCh. 10.2 - Write some code that will create a stream named...Ch. 10.2 - Suppose you run a program that writes to the text...Ch. 10.2 - Prob. 10STQ
Ch. 10.3 - Prob. 11STQCh. 10.4 - Write some Java code to create an output stream of...Ch. 10.4 - Give three statements that will write the values...Ch. 10.4 - Give a statement that will close the stream toFile...Ch. 10.4 - What import statement(s) do you use when creating...Ch. 10.4 - Prob. 16STQCh. 10.4 - Give three statements that will read three numbers...Ch. 10.4 - Give a statement that will close the stream...Ch. 10.4 - Can you use writeInt to write a number to a file...Ch. 10.4 - Can you use readUTF to read a string from a text...Ch. 10.4 - Prob. 21STQCh. 10.4 - Prob. 22STQCh. 10.4 - Does the class FileInputStream have a method named...Ch. 10.4 - Does the class FileOutputStream have a constructor...Ch. 10.4 - Does the class ObjectOutputStream have a...Ch. 10.4 - Prob. 26STQCh. 10.4 - Suppose that a binary file contains exactly three...Ch. 10.4 - The following code appears in the program in...Ch. 10.4 - Prob. 29STQCh. 10.5 - Prob. 30STQCh. 10.5 - Prob. 31STQCh. 10.5 - Prob. 32STQCh. 10.5 - Prob. 33STQCh. 10.6 - Prob. 34STQCh. 10.6 - Prob. 35STQCh. 10 - Write a program that will write the Gettysburg...Ch. 10 - Modify the program in the previous exercise so...Ch. 10 - Write some code that asks the user to enter either...Ch. 10 - Write a program that will record the purchases...Ch. 10 - Modify the class LapTimer, as described in...Ch. 10 - Write a class TelephoneNumber that will hold a...Ch. 10 - Write a class contactInfo to store contact...Ch. 10 - Write a program that reads every line in a text...Ch. 10 - Repeat the previous exercise, but write the new...Ch. 10 - Write a program that will make a copy of a text...Ch. 10 - Suppose you are given a text file that contains...Ch. 10 - Suppose that you have a binary file that contains...Ch. 10 - Suppose that we want to store digitized audio...Ch. 10 - Write a program RecoverSignal that will read the...Ch. 10 - Even though a binary file is not a text file, it...Ch. 10 - Write a program that searches a file of numbers...Ch. 10 - Write a program that reads a file of numbers of...Ch. 10 - The following is an old word puzzle: Name a common...Ch. 10 - The Social Security Administration maintains an...Ch. 10 - The following is a list of scores for a game....Ch. 10 - Write a program that checks a text file for...Ch. 10 - Prob. 5PPCh. 10 - Prob. 6PPCh. 10 - Revise the class Pet, as shown in Listing 6.1 of...Ch. 10 - Write a program that reads records of type Pet...Ch. 10 - Prob. 12PP
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