in java Declare a FileInputStream named gradeFStream and a Scanner named gradeFS.   Click here for example           GradeDataProcessor.java input1.tx tinput2.txt input3.txt         public class GradeDataProcessor { publicstaticvoidmain(String[] args) throwsIOException { Scannerscnr=newScanner(System.in); StringfileName; chargradeGrade; /* Variable declarations go here */   fileName=scnr.next();   gradeFStream=newFileInputStream(fileName); gradeFS=newScanner(gradeFStream);   gradeGrade=gradeFS.next().charAt(0); System.out.println(gradeGrade);   gradeFStream.close(); } }

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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in java

Declare a FileInputStream named gradeFStream and a Scanner named gradeFS.

 

Click here for example

 

 
 

 

 

GradeDataProcessor.java
input1.tx
tinput2.txt
input3.txt
 
 
 
 
public class GradeDataProcessor {
publicstaticvoidmain(String[] args) throwsIOException {
Scannerscnr=newScanner(System.in);
StringfileName;
chargradeGrade;
/* Variable declarations go here */
 
fileName=scnr.next();
 
gradeFStream=newFileInputStream(fileName);
gradeFS=newScanner(gradeFStream);
 
gradeGrade=gradeFS.next().charAt(0);
System.out.println(gradeGrade);
 
gradeFStream.close();
}
}
 
 
 
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