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555 Questions
(Baby name popularity ranking) The popularity ranking of baby names from years 2001 to 2010 is downloaded from www.ssa.gov/oact/babynames and stored in files named babynameranking2001.txt, babynameranking2002.txt, . . . ,
Java programming
2022-06-05
Answers
30
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40
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1
231
(Occurrences of each letter) Write a program that prompts the user to enter a file name and displays the occurrences of each letter in the file. Letters are case-insensitive
Java programming
2022-06-05
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30
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187
(Rename files) Suppose you have a lot of files in a directory named Exercisei_j, where i and j are digits. Write a program that pads a 0 before j if j is a single digit
Java programming
2022-06-05
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30
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172
(Rename files) Suppose you have a lot of files in a directory named Exercisei_j, where i and j are digits. Write a program that pads a 0 before i if i is a single digit. For example, a file named Exercise2_1 in a directory will be renamed to Exercise02_1
Java programming
2022-06-05
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30
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291
(Replace words) Suppose you have a lot of files in a directory that contain words Exercisei_j, where i and j are digits. Write a program that pads a 0 before i if i is a single digit and 0 before j if j is a single digit
Java programming
2022-06-05
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30
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178
(Create a directory) Write a program that prompts the user to enter a directory name and creates a directory using the File’s mkdirs method
Java programming
2022-06-05
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30
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468
(Process large dataset) A university posts its employees’ salaries at http:// cs.armstrong.edu/liang/data/Salary.txt. Each line in the file consists of a faculty member’s first name, last name, rank, and salary (see Programming Exercise 12.24)
Java programming
2022-06-05
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30
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211
(Create large dataset) Create a data file with 1,000 lines. Each line in the file consists of a faculty member’s first name, last name, rank, and salary. The faculty member’s first name and last name for the ith line are FirstNamei and LastNamei
Java programming
2022-06-05
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30
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218
(Process scores in a text file on the Web) Suppose that the text file on the Web http://cs.armstrong.edu/liang/data/Scores.txt contains an unspecified number of scores. Write a program that reads the scores from the file and displays their total and average. Scores are separated by blanks
Java programming
2022-06-05
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30
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341
(Replace text) Revise Programming Exercise 12.16 to replace a string in a file with a new string for all files in the specified directory using the command:
Java programming
2022-06-05
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194
(Data sorted?) Write a program that reads the strings from file SortedStrings. txt and reports whether the strings in the files are stored in increasing order
Java programming
2022-06-05
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30
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214
(Remove package statement) Suppose you have Java source files under the directories chapter1, chapter2, . . . , chapter34. Write a program to remove the statement package chapteri; in the first line for each Java source file under the directory chapteri
Java programming
2022-06-05
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30
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196
(Count words) Write a program that counts the number of words in President Abraham Lincoln’s Gettysburg address from http://cs.armstrong.edu/liang/data/ Lincoln.txt
Java programming
2022-06-05
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30
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477
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555
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