Java: An Introduction to Problem Solving and Programming (8th Edition)
8th Edition
ISBN: 9780134462035
Author: Walter Savitch
Publisher: PEARSON
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Chapter 2.4, Problem 34STQ
Although it is kind of silly, state legislatures have been known to pass laws that “change” the value of pi. Suppose you live in a state where, by law, the value of pi is exactly 3.14. How must you change the
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You're interested in looking at trending Twitter hashtags, but you notice that people aren't very consistent with how they use them. Specifically, the capitalisation and punctuation in hashtags is inconsistent. You decide to write a program to read in tweets, normalise any hashtags present, and print out a tally of frequencies.
Hashtags should only include words starting with #. All punctuation should be removed from the end of a hashtag, and the letters should be converted to lowercase. For instance, #Python! should be normalised to #python, and #Today_I_Learned... should be #today_i_learned.
Your program should work like this. The tally of hashtags can be printed out in any order.
Tweet: #Python is #AWESOME!Tweet: This is #So_much_fun #awesomeTweet: #python 1#awesome 2#so_much_fun 1
1. In the game of Monopoly, a pair of dice are rolled to move a player's piece around the board. If a double is
rolled (the dice show the same number), the player receives another roll of the dice. If a double is rolled a
second time, a third roll of the dice is received. If a double is rolled on the third occasion, the player forfeits
their turn (and goes to Jail). Write a program which simulates two players having 50 turns each (a turn
however many dice rolls a player has in a row before it's the other player's turn) and determines:
a) the total number of spaces moved by each player; and
b) how many times a player rolls a double which results in movement of a piece.
Use the randi function.
For fun, incorporate the rule that a player cannot leave Jail (cannot move) unless they either roll a double or
three turns have passed without rolling a double.
please code in python
You are probably familiar with the famous Fibonacci sequence of numbers, which begins like this:
1, 1, 2, 3, 5, 8, 13, 21...
We'll index from 0, so the 0th and 1st numbers are both 1. The 2nd Fibonacci number is found by summing the 0th and 1st: 1 + 1 = 2. The 3rd is found by summing the 1st and 2nd: 1 + 2 = 3. After this point, each Fibonacci number is found by summing the previous two numbers.
You are to write a recursive function to compute the nth Fibonacci number. This means that your function will call itself and will NOT include explicit loops.
Hint: Your function should include a line that looks a lot like the mathematical definition of the nth Fibonacci number.
Another Hint: It's possible for a recursive function to call itself more than once.
Example:
print(Fibonacci(1))
1
Chapter 2 Solutions
Java: An Introduction to Problem Solving and Programming (8th Edition)
Ch. 2.1 - Prob. 1STQCh. 2.1 - Can a Java program have two different variables...Ch. 2.1 - Prob. 3STQCh. 2.1 - Give the declaration for two variables of type...Ch. 2.1 - Write the declaration for two variables called...Ch. 2.1 - What is the normal spelling convention for named...Ch. 2.1 - Prob. 7STQCh. 2.1 - Prob. 8STQCh. 2.1 - Prob. 9STQCh. 2.1 - Prob. 10STQ
Ch. 2.1 - Prob. 11STQCh. 2.1 - In the Programming Tip entitled Type Casting a...Ch. 2.1 - What is the output produced by the following lines...Ch. 2.1 - What is the output produced by the following lines...Ch. 2.1 - Prob. 15STQCh. 2.1 - Prob. 16STQCh. 2.1 - Consider the following statement from the program...Ch. 2.1 - Prob. 18STQCh. 2.2 - Prob. 19STQCh. 2.2 - What output is produced by the following...Ch. 2.2 - What output is produced by the following...Ch. 2.2 - What output is produced by the following...Ch. 2.2 - What output is produced by the following...Ch. 2.2 - What output is produced by the following...Ch. 2.2 - What is the value of the expression sl.equals(s2)...Ch. 2.2 - What is the value of the expression s1.equals (s2)...Ch. 2.3 - Write Java statements that will cause the...Ch. 2.3 - What is the difference between the methods...Ch. 2.3 - Write a complete Java program that reads a line of...Ch. 2.3 - Write a complete Java program that reads one line...Ch. 2.3 - What output is produced by the following...Ch. 2.4 - Prob. 32STQCh. 2.4 - What is the output produced by the following Java...Ch. 2.4 - Although it is kind of silly, state legislatures...Ch. 2.5 - Prob. 35STQCh. 2.5 - Give a Java statement that will display a dialog...Ch. 2.5 - Give a Java statement that, when executed, will...Ch. 2.5 - Prob. 38STQCh. 2.5 - Write a complete Java program that produces a...Ch. 2.5 - Write a complete Java program that behaves as...Ch. 2 - Write a program that demonstrates the approximate...Ch. 2 - Write a program that demonstrates type casting of...Ch. 2 - Write a program that demonstrates the operator %...Ch. 2 - If u = 2, v = 3, w = 5, x = 7, and y = 11, what is...Ch. 2 - What changes to the ChangeMaker program in Listing...Ch. 2 - If the int variable x contains 10, what will the...Ch. 2 - Write some Java statements that use the String...Ch. 2 - Prob. 8ECh. 2 - Prob. 9ECh. 2 - Write a single Java statement that will display...Ch. 2 - What does the Java code Scanner keyboard = new...Ch. 2 - What does the Java code Scanner keyboard = new...Ch. 2 - Prob. 13ECh. 2 - Many sports have constants embedded in their...Ch. 2 - Prob. 15ECh. 2 - Define named constants that you could use in...Ch. 2 - Write a program that reads three whole numbers and...Ch. 2 - Write a program that uses Scanner to read two...Ch. 2 - Write a program that reads the amount of a monthly...Ch. 2 - Write a program that reads a four-digit integer,...Ch. 2 - Prob. 5PCh. 2 - Prob. 6PCh. 2 - Write a program that converts degrees from...Ch. 2 - Write a program that reads a line of text and then...Ch. 2 - Write a program that will read a line of text as...Ch. 2 - Write a program that asks the user to enter a...Ch. 2 - Write a program that determines the change to be...Ch. 2 - Write a program that reads a 4-bit binary number...Ch. 2 - Prob. 7PPCh. 2 - The Harris-Benedict equation estimates the number...Ch. 2 - Repeat any of the previous programming projects...Ch. 2 - Write a program that reads a string for a date in...Ch. 2 - It is important to consider the effect of thermal...
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