1. Write a Java program that reads the file "input.txt" and calculates and prints the average of all integer numbers in this file. SAMPLE OUTPUT: throws FileNotFoundException try/catch OUTPUT SAMPLE #1 for input.txt: 1 2 3 4 5 6 x x x 8 12 x x 34 x x 10 20 Please input the name of the file to be opened: input.tx |--- File Not Found! --- OUTPUT SAMPLE #1 for input.txt: 1 2 3 4 5 6 x x x 8 12 x x 34 x x 10 20 OUTPUT SAMPLE #2 for input.txt: 1 Number # 1 is: 1 2 3 4 56 x x x 8 12 x x 34 x x 10 20 Please input the name of the file to be opened: input.txt Number # 1 is: 1 Number # 2 is: 2 Number # 3 is: 3 Number # 4 is: 4 Number # 5 is: 5 Number # 2 is: 2 Number # 3 is: 3 Number # 4 is: 4 Number # 5 is: 5 Number # 6 is: 6 Number # 7 is: 8 Number # 8 is: 12 Number # 9 is: 34 Number # 10 is: 10 Number # 6 is: 6 Number # 11 is: 20 The average of 11 numbers/file = 9.55 Number # 7 is: 8 Number # 8 is: 12 Number # 9 is: 34 Number # 10 is: 10 OUTPUT SAMPLE #2 for Number # 11 is: 20 The average of 11 numbers/file = 9.55 input.txt: xxxxx x x x x xx x x x x x The file doesn't contain any integers. Exit program! OUTPUT SAMPLE #3 for input.txt: xxxxx x x x x xx x x x x x Please input the name of the file to be opened: input.txt The file doesn't contain any integers. Exit program!
1. Write a Java program that reads the file "input.txt" and calculates and prints the average of all integer numbers in this file. SAMPLE OUTPUT: throws FileNotFoundException try/catch OUTPUT SAMPLE #1 for input.txt: 1 2 3 4 5 6 x x x 8 12 x x 34 x x 10 20 Please input the name of the file to be opened: input.tx |--- File Not Found! --- OUTPUT SAMPLE #1 for input.txt: 1 2 3 4 5 6 x x x 8 12 x x 34 x x 10 20 OUTPUT SAMPLE #2 for input.txt: 1 Number # 1 is: 1 2 3 4 56 x x x 8 12 x x 34 x x 10 20 Please input the name of the file to be opened: input.txt Number # 1 is: 1 Number # 2 is: 2 Number # 3 is: 3 Number # 4 is: 4 Number # 5 is: 5 Number # 2 is: 2 Number # 3 is: 3 Number # 4 is: 4 Number # 5 is: 5 Number # 6 is: 6 Number # 7 is: 8 Number # 8 is: 12 Number # 9 is: 34 Number # 10 is: 10 Number # 6 is: 6 Number # 11 is: 20 The average of 11 numbers/file = 9.55 Number # 7 is: 8 Number # 8 is: 12 Number # 9 is: 34 Number # 10 is: 10 OUTPUT SAMPLE #2 for Number # 11 is: 20 The average of 11 numbers/file = 9.55 input.txt: xxxxx x x x x xx x x x x x The file doesn't contain any integers. Exit program! OUTPUT SAMPLE #3 for input.txt: xxxxx x x x x xx x x x x x Please input the name of the file to be opened: input.txt The file doesn't contain any integers. Exit program!
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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Transcribed Image Text:1. Write a Java program that reads the file "input.txt" and calculates and prints
the average of all integer numbers in this file.
SAMPLE OUTPUT:
throws
FileNotFoundException
try/catch
OUTPUT SAMPLE #1 for input.txt: 1
2 3 4 5 6 x x x 8 12 x x 34 x x 10
20
Please input the name of the file
to be opened: input.tx
--- File Not Found!
OUTPUT SAMPLE #1 for input.txt: 1 2
OUTPUT SAMPLE #2 for input.txt: 1
2 3 4 5 6 x x x 8 12 x x 34 x x 10
20
Please input the name of the file
to be opened: input.txt
Number # 1 is: 1
Number # 2 is: 2
3 4 5 6 x x x 8 12 x x 34 x x 10 20
Number # 1 is: 1
Number # 2 is: 2
Number # 3 is: 3
Number # 4 is: 4
Number # 5 is: 5
Number # 6 is: 6
Number # 3 is: 3
Number # 4 is: 4
Number # 5 is: 5
Number # 7 is: 8
Number # 8 is: 12
Number # 9 is: 34
Number # 6 is: 6
Number # 10 is: 10
Number # 7 is: 8
Number # 11 is: 20
The average of 11 numbers/file =
9.55
Number # 8 is: 12
Number # 9 is: 34
Number # 10 is: 10
OUTPUT SAMPLE #2 for
Number # 11 is: 20
The average of 11 numbers/file =
9.55
input.txt: xxxxx x x x x xx
x x x x x
The file doesn't contain any
integers. Exit program!
OUTPUT SAMPLE #3 for
input.txt: xxxxx x x x x xx
x x x x x
Please input the name of the file
to be opened: input.txt
The file doesn't contain any
integers. Exit program!
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