JAVA CODE can only be added inbetween lins of grey code. Like in the image 10-13 lines Perform the following tasks: Declare a FileInputStream named gradeFStream, and a Scanner named gradeFileFS. Read string dataFileName from input. Assign gradeFStream with a FileInputStream that opens the file dataFileName for reading. Assign gradeFileFS with a Scanner created using gradeFStream. Ex: If the input is grade3.txt and: Contents of file grade3.txt F then the output is: F grade1.txt Line 1 D grade2.txt Line 1 A grade3.txt Line 1 F
JAVA CODE can only be added inbetween lins of grey code. Like in the image 10-13 lines Perform the following tasks: Declare a FileInputStream named gradeFStream, and a Scanner named gradeFileFS. Read string dataFileName from input. Assign gradeFStream with a FileInputStream that opens the file dataFileName for reading. Assign gradeFileFS with a Scanner created using gradeFStream. Ex: If the input is grade3.txt and: Contents of file grade3.txt F then the output is: F grade1.txt Line 1 D grade2.txt Line 1 A grade3.txt Line 1 F
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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Question
JAVA CODE can only be added inbetween lins of grey code. Like in the image 10-13 lines
Perform the following tasks:
- Declare a FileInputStream named gradeFStream, and a Scanner named gradeFileFS.
- Read string dataFileName from input.
- Assign gradeFStream with a FileInputStream that opens the file dataFileName for reading.
- Assign gradeFileFS with a Scanner created using gradeFStream.
Ex: If the input is grade3.txt and:
Contents of file grade3.txt |
---|
F |
then the output is:
grade1.txt
Line 1 | D |
grade2.txt
Line 1 | A |
grade3.txt
Line 1 | F |
![1 import java.util.Scanner;
2 import java.io.FileInputStream;
3 import java.io.IOException;
4
5 public class FileReader {
6
public static void main(String[] args) throws IOException {
7
Scanner scnr = new Scanner(System.in);
8
String dataFileName;
char gradeGrade;
/* Variable declarations go here */
/* Your code goes here */
gradeGrade = gradeFileFS.next().charAt(0);
System.out.println(gradeGrade);
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FileReader.java grade1.txt grade2.txt grade3.txt
PP
456N
gradeFileFS.close();](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F0cc153ae-b205-4fb2-9991-7cf6a21d5016%2Fc96b72a0-4241-4e79-bda8-99ae09bf7d97%2F4i9yvzf_processed.png&w=3840&q=75)
Transcribed Image Text:1 import java.util.Scanner;
2 import java.io.FileInputStream;
3 import java.io.IOException;
4
5 public class FileReader {
6
public static void main(String[] args) throws IOException {
7
Scanner scnr = new Scanner(System.in);
8
String dataFileName;
char gradeGrade;
/* Variable declarations go here */
/* Your code goes here */
gradeGrade = gradeFileFS.next().charAt(0);
System.out.println(gradeGrade);
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FileReader.java grade1.txt grade2.txt grade3.txt
PP
456N
gradeFileFS.close();
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