1.Given the following import statements:import java.util.Scanner;import java.util.InputMismatchException;import java.io.File;import java.io.PrintWriter;import java.io.IOException;A.В.С.D.Е.F.All of the above.Which ones will be needed for file input/output?2.Choose from below the instance field declarations associated with file processing.А.private String fileName;В.private double testScore;с.private PrintWriter outputFile;D.В only.Е.Both A and C.F.А, в, С.Enter a letter for the answer:3.Code a createFile method that handles input/output exceptions through its header.public void createFilesert throws clause for handing an IO (input/output) exception.{System.out.printf("%nEnter the file name for test scores+ " (WARNING:This will erase a pre-existing file!):") ;fileName = input.nextLine ();//Complete creating outputFilea PrintWriter object for opening a file.}//END setFileName () :final void

Option A (import java.util.Scanner) is used for reading input from various sources, including…

1. Given the following import statements: A. import java.util.Scanner; B. import java.util. InputMismatchException; C. import java.io.File; D. import java.io. PrintWriter; E. import java.io.IOException; F. All of the above. Which ones will be needed for file input/output? 2. Choose from below the instance field declarations associated with file processing. A. private String fileName; B. private double testScore; C. private PrintWriter outputFile; D. B only. E. Both A and C. F. A, B, C. Enter a letter for the answer: 3. Code a createFile method that handles input/output exceptions through its header. public void createFile { System.out.printf("%nEnter the file name for test scores " //Insert throws clause for handing an 10 (input/output) exception. + " (WARNING: This will erase a pre-existing file!): "); fileName= input.nextLine(); //Complete creating outputFile - a PrintWriter object for opening a file. }//END setFileName (): final void

1. Given the following import statements: A. import java.util.Scanner; B. import java.util. InputMismatchException; C. import java.io.File; D. import java.io. PrintWriter; E. import java.io.IOException; F. All of the above. Which ones will be needed for file input/output? 2. Choose from below the instance field declarations associated with file processing. A. private String fileName; B. private double testScore; C. private PrintWriter outputFile; D. B only. E. Both A and C. F. A, B, C. Enter a letter for the answer: 3. Code a createFile method that handles input/output exceptions through its header. public void createFile { System.out.printf("%nEnter the file name for test scores " //Insert throws clause for handing an 10 (input/output) exception. + " (WARNING: This will erase a pre-existing file!): "); fileName= input.nextLine(); //Complete creating outputFile - a PrintWriter object for opening a file. }//END setFileName (): final void

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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