
Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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JAVA PROGRAM
Chapter 4. Homework Assignment (read instructions carefully)
Write a program that asks the user for the name of a file. The program should read all the numbers from the given file and display the total and average of all numbers in the following format (three decimal digits):
Total: nnnnn.nnn
Average: nnnnn.nnn
Class name: FileTotalAndAverage
double_input1.txt double_input2.txt
Test Case 1
Please enter the file name: \n
double_input1.txtENTER
Total: -5,748.583\n
Average: -57.486\n
double_input1.txtENTER
Total: -5,748.583\n
Average: -57.486\n
Test Case 2
Please enter the file name: \n
double_input2.txtENTER
Total: 112,546.485\n
Average: 56.273\n
double_input2.txtENTER
Total: 112,546.485\n
Average: 56.273\n
Test Case 3
Please enter the file name: \n
double_input3.txtENTER
File 'double_input3.txt' does not exist.\n
Please enter the file name again: \n
double_input1.txtENTER
Total: -5,748.583\n
Average: -57.486\n
double_input3.txtENTER
File 'double_input3.txt' does not exist.\n
Please enter the file name again: \n
double_input1.txtENTER
Total: -5,748.583\n
Average: -57.486\n

Transcribed Image Text:783.236
-16.811
912.147
-323.916
-715.310
90.318
686.803
593.818
-169.659
-765.043
-544.811
-23.785
115.358
441.790
-184.904
-377.776
296.707
-910.261
-460.320
-968.745
584.617
554.042
-899.552
544.751
905.852
-819.293
-46.760
-151.522
884.914
595.830
double_input1 (2).txt -

Transcribed Image Text:7958.535399
-5218.042014
-1592.003415
-9784.591013
-5010.482188
-0.167315
-7788.445125
5608.893405
9100.873263
5544.198604
4551.439582
4928.647719
8089.621856
-3546.012174
-8520.509183
-2945.086234
3439.600378
3563.957045
-9961.258830
-300.614003
9446.017894
4196.918097
-3193.989848
-827.767355
-3918.970284
-7335.357971
6550.333520
-1155.182268
-4106.096382
-7034.258600
double_input2 (1).txt →
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