Assume the file data.dat contains a sequence of binary data. Write a program that does the following: Displays the first 5 bytes stored in the file. Each byte should be displayed on a separate line. • Starting with byte 0, displays every even-numbered byte in the file. (In other words, display byte 0, byte 2, byte 4, and so on.) Each byte should be displayed on a separate line. • Starting with byte 1, displays every odd-numbered byte in the file. (In other words, display byte 1, byte 3, byte 5, and so on.) Each byte should be displayed on a separate line. • Displays the last 5 bytes stored in the file, in reverse order. (Display the last byte, then the next-to-last byte, and so on.) Each byte should be displayed on a separate line. Handle exceptions in the following manner: If a FileNotFoundException is thrown, the program should display the string "File Error". • If an EOFException is thrown, the program should display the string "EOF Error". If any other exception is thrown, the program should display the string "Error". The name of your program class must be DataDisplay. 1 public class DataDisplay 2-{ 3 56 7 public static void main(String[] args) { int number; String str = "data.dat"; try {
Assume the file data.dat contains a sequence of binary data. Write a program that does the following: Displays the first 5 bytes stored in the file. Each byte should be displayed on a separate line. • Starting with byte 0, displays every even-numbered byte in the file. (In other words, display byte 0, byte 2, byte 4, and so on.) Each byte should be displayed on a separate line. • Starting with byte 1, displays every odd-numbered byte in the file. (In other words, display byte 1, byte 3, byte 5, and so on.) Each byte should be displayed on a separate line. • Displays the last 5 bytes stored in the file, in reverse order. (Display the last byte, then the next-to-last byte, and so on.) Each byte should be displayed on a separate line. Handle exceptions in the following manner: If a FileNotFoundException is thrown, the program should display the string "File Error". • If an EOFException is thrown, the program should display the string "EOF Error". If any other exception is thrown, the program should display the string "Error". The name of your program class must be DataDisplay. 1 public class DataDisplay 2-{ 3 56 7 public static void main(String[] args) { int number; String str = "data.dat"; try {
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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assume the file data.dat contains a sequence of binary data. write a program that does the following:
displays the first 5 bytes stored in the file. each byte should be displayed on a separate line.
starting with byte 0, displays every even-numbered byte in the file. (in other words, display byte 0, byte 2, byte 4, and so on.) each byte should be displayed on a separate line.
starting with byte 1, displays every odd-numbered byte in the file. (in other words, display byte 1, byte 3, byte 5, and so on.) each byte should be displayed on a separate line.
displays the last 5 bytes stored in the file, in reverse order. (display the last byte, then the next-to-last byte, and so on.) each byte should be displayed on a separate line.
handle exceptions in the following manner:
if a filenotfoundexception is thrown, the program should display the string "file error".
if an eofexception is thrown, the program should display the string "eof error".
if any other exception is thrown, the program should display the string "error".
the name of your program class must be datadisplay.
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