Introduction to Java Programming and Data Structures, Comprehensive Version (11th Edition)
Introduction to Java Programming and Data Structures, Comprehensive Version (11th Edition)
11th Edition
ISBN: 9780134670942
Author: Y. Daniel Liang
Publisher: PEARSON
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Chapter 30, Problem 30.19PE

(Summary information) Suppose the file test.txt contains floating-point numbers separated by spaces. Write a program to obtain the sum, average, maximum, and minimum of the numbers.

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Modified Programming ). (Count vowels and consonants, file input, nested-loops, switch statement) Assume that letters A, E, I, O and U are the vowels. Write a program that reads strings from a text file, one line at a time, using a while-loop. You do the following operations within each loop: • Read one line from the input file and store it in a string; Count the number of vowels and consonants (using either while-loop or for-loop) in the file string. The while-loop will terminate when the end-of-file is reached. After the loop is finished, the program displays the total number of vowels and consonants in the text file. [A text file, named “ass4_Q6_input.txt", is provided as your testing input file.]
4. (Check SSN) Write a program that prompts the user to enter a Social Security number in the format DDD-DD-DDDD, where D is a digit. Your program should check whether the input is valid. Here are sample runs: Enter a SSN: 232-23-5435 JEnter 232-23-5435 is a valid social security number Enter a SSN: 23-23-5435 JEnter 23-23-5435 is an invalid social security number
(Python) Write code that does the following: opens the number_list.txt file,  reads all of the numbers from the file (1 to 100) and displays them, then closes the file.

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Introduction to Java Programming and Data Structures, Comprehensive Version (11th Edition)

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