Big Java Late Objects
2nd Edition
ISBN: 9781119330455
Author: Horstmann
Publisher: WILEY
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Chapter 1.5, Problem 13SC
Would the
System.out.println(Hello);
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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
What is the output produced by the following?System.out.println("abc\ndef");
Can you help me with this program?In C++ The room contains n*n cubes (in rows and columns). Each cube is white or black. You can get out of a white cube by going in one of the four directions horizontally or vertically (but you can't go beyond the scope of the room). You can get out in a black cube, but you can't get out of it. There is a mouse and a piece of cheese in the room. The mouse is in a cube (0,0) - white, and the cheese in a cube (n-1, n-1) - black. The mouse can move from cube to cube according to the rules described above. Write a program that finds all the paths that can be moved to the cheese with the mouse and if it appears, display it with ‘*’.
An example diagram of the task is shown in the figure:
Operating instructions: Compose a recursive function path (int i, int j), receiving as parameters the coordinates of the current position of the mouse (initially 0.0, and then run with parameters (i-1, j), (i + 1, j), ( i, j-1) or (i, j + 1)).
Chapter 1 Solutions
Big Java Late Objects
Ch. 1.1 - What is required to play music on a computer?Ch. 1.1 - Why is a CD player less flexible than a computer?Ch. 1.1 - What does a computer user need to know about...Ch. 1.2 - Prob. 4SCCh. 1.2 - Which part of the computer carries out arithmetic...Ch. 1.2 - A modern smartphone is a computer, comparable to a...Ch. 1.3 - What are the two most important benefits of the...Ch. 1.3 - Prob. 8SCCh. 1.4 - Prob. 9SCCh. 1.4 - Prob. 10SC
Ch. 1.5 - How do you modify the HelloPrinter program to...Ch. 1.5 - How would you modify the HelloPrinter program to...Ch. 1.5 - Would the program continue to work if you replaced...Ch. 1.5 - What does the following set of statements print?...Ch. 1.5 - What do the following statements print?...Ch. 1.6 - Suppose you omit the "" characters around Hello,...Ch. 1.6 - Suppose you change println to Printline in the...Ch. 1.6 - Suppose you change main to hello in the...Ch. 1.6 - Prob. 19SCCh. 1.6 - Prob. 20SCCh. 1.7 - Prob. 21SCCh. 1.7 - Suppose your cell phone carrier charges you 29.95...Ch. 1.7 - Consider the following pseudocode for finding the...Ch. 1.7 - Suppose each photo in Self Check 23 had a price...Ch. 1.7 - Prob. 25SCCh. 1.7 - Prob. 26SCCh. 1 - Explain the difference between using a computer...Ch. 1 - Prob. 2RECh. 1 - Prob. 3RECh. 1 - Prob. 4RECh. 1 - Prob. 5RECh. 1 - Prob. 6RECh. 1 - What does this program print? public class Test {...Ch. 1 - What does this program print? Pay close attention...Ch. 1 - Prob. 9RECh. 1 - Write three versions of the HelloPrinter.java...Ch. 1 - How do you discover syntax errors? How do you...Ch. 1 - The cafeteria offers a discount card for sale that...Ch. 1 - Write an algorithm to settle the following...Ch. 1 - Consider the question in Exercise R1.13. Suppose...Ch. 1 - In order to estimate the cost of painting a house,...Ch. 1 - In How To 1.1, you made assumptions about the...Ch. 1 - Suppose you put your younger brother in charge of...Ch. 1 - Write pseudocode for an algorithm that describes...Ch. 1 - The ancient Babylonians had an algorithm for...Ch. 1 - Write a program that prints a greeting of your...Ch. 1 - Write a program that prints the sum of the first...Ch. 1 - Write a program that prints the product of the...Ch. 1 - Write a program that prints the balance of an...Ch. 1 - Write a program that displays your name inside a...Ch. 1 - Write a program that prints your name in large...Ch. 1 - Write a program that prints your name in Morse...Ch. 1 - Write a program that prints a face similar to (but...Ch. 1 - Write a program that prints an imitation of a Piet...Ch. 1 - Write a program that prints a house that looks...Ch. 1 - Write a program that prints an animal speaking a...Ch. 1 - Write a program that prints three items, such as...Ch. 1 - Write a program that prints a poem of your choice....Ch. 1 - Write a program that prints the United States...Ch. 1 - Type in and run the following program. Then modify...Ch. 1 - Type in and run the following program. Then modify...Ch. 1 - Modify the program from Exercise E1.16 so that the...Ch. 1 - Prob. 18PECh. 1 - Write a program that prints a two-column list of...Ch. 1 - In the United States there is no federal sales...Ch. 1 - To speak more than one language is a valuable...Ch. 1 - You want to decide whether you should drive your...Ch. 1 - You want to find out which fraction of your cars...Ch. 1 - The value of can be computed according to the...Ch. 1 - Imagine that you and a number of friends go to a...Ch. 1 - Write an algorithm to create a tile pattern...Ch. 1 - Write an algorithm that allows a robot to mow a...Ch. 1 - Consider a robot that is placed in a room. The...Ch. 1 - Consider a robot that has been placed in a maze....Ch. 1 - Suppose you received a loyalty promotion that lets...Ch. 1 - A television manufacturer advertises that a...Ch. 1 - Cameras today can correct red eye problems caused...
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