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 25, Problem 25.16PE
(Data compression: Huffman coding) Write a
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Modified Programming
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(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.]
(Hex to binary) Write a program that prompts the user to enter a hex digit and
displays its corresponding binary number. Here is sample run:
Below are the sample outputs:
Enter a hex digit: Ger
G is an invalid input
Enter a hex digit: Ber
The binary value is 1011
Hint: Implement Scanner and use typecasting,
Declare a main method
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Implement a check for user input
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Please submit the following:
1. Your flowchart or logic in your program
2. The entire project folder containing your entire project (That includes .java file) as a
compressed file. (zip)
3. Program output - screenshot
Also,
1. Copy and paste source code to this document underneath the line "your code and
results/output"
2. Include flowchart for your program and logical flow and description
3. Include screenshot or your running program
(Phone key pads) The international standard letter/number mapping found on the
telephone is shown below:
100
2 abc
3 def
4 ghi
5 ikl
6mno
7pgrs
8 tuv
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Write a program that prompts the user to enter a letter and displays its correspond-
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Chapter 25 Solutions
Introduction to Java Programming and Data Structures, Comprehensive Version (11th Edition)
Ch. 25.2 - Prob. 25.2.1CPCh. 25.2 - Prob. 25.2.2CPCh. 25.2 - Prob. 25.2.3CPCh. 25.2 - Prob. 25.2.4CPCh. 25.2 - Prob. 25.2.5CPCh. 25.3 - Prob. 25.3.1CPCh. 25.3 - Prob. 25.3.2CPCh. 25.3 - Prob. 25.3.3CPCh. 25.3 - Prob. 25.3.4CPCh. 25.4 - Prob. 25.4.1CP
Ch. 25.4 - Prob. 25.4.2CPCh. 25.4 - Prob. 25.4.3CPCh. 25.4 - Prob. 25.4.4CPCh. 25.4 - Prob. 25.4.5CPCh. 25.5 - Prob. 25.5.1CPCh. 25.5 - Prob. 25.5.2CPCh. 25.5 - Prob. 25.5.3CPCh. 25.5 - Prob. 25.5.4CPCh. 25.5 - Prob. 25.5.5CPCh. 25.6 - Prob. 25.6.1CPCh. 25.6 - Prob. 25.6.2CPCh. 25.6 - Prob. 25.6.3CPCh. 25.6 - How do you replace lines 9499 in Listing 25.11...Ch. 25 - Prob. 25.1PECh. 25 - (Implement inorder traversal without using...Ch. 25 - (Implement preorder traversal without using...Ch. 25 - (Implement postorder traversal without using...Ch. 25 - Prob. 25.6PECh. 25 - Prob. 25.7PECh. 25 - (Implement bidirectional iterator) The...Ch. 25 - Prob. 25.9PECh. 25 - Prob. 25.10PECh. 25 - Prob. 25.11PECh. 25 - (Test BST) Design and write a complete test...Ch. 25 - (Modify BST using Comparator) Revise BST in...Ch. 25 - Prob. 25.15PECh. 25 - (Data compression: Huffman coding) Write a program...Ch. 25 - Prob. 25.17PECh. 25 - (Compress a file) Write a program that compresses...Ch. 25 - (Decompress a file) The preceding exercise...
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