BUSINESS DRIVEN TECHNOLOGY(LL)-W/ACCESS
BUSINESS DRIVEN TECHNOLOGY(LL)-W/ACCESS
7th Edition
ISBN: 9781260149043
Author: BALTZAN
Publisher: MCGRAW-HILL HIGHER EDUCATION
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Running Time of Application
The application has a feature called running time. It is one of the parameters for measuring its performance. It is written in a particular language and is designed to perform a specific task. Applications run in a specific environment. The execution of …
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Chapter 18, Problem 3MBD

Scratch

Scratch is a visual programming language that is perfect for anyone learning to code. Scratch creates programs by connecting blocks of code by using a drag-and-drop GUI so users do not have to type programming languages. Users can simply select colored blocks of code that, when joined, create a script or a set of computer instructions that can make objects such as people and animals move and speak. Users can create interactive stories, games, and animations with the click of a button.

Scratch is a free project created by the Lifelong Kindergarten Group at the MIT Media Lab and currently has more than 8 million users. The goal of Scratch is to help young people learn to think creatively, reason systematically, and work collaboratively—essential skills for life in the 21st century.

In a group, visit the Scratch website at http://scratch.mit.edu/. What type of system development methodology is Scratch using? What skills can young people learn from creating Scratch programs?

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7. See the code below and solve the following. public class Test { public static void main(String[] args) { int result = 0; } result = fn(2,3); System.out.println("The result is: + result); // fn(x, 1) = x // fn(x, y) = fn(x, y-1) + 2, when y>1 public static int fn(int x, int y) { if (x <= 1) return x; else return fn(x, y-1) + 2; } } 7-1. This program has a bug that leads to infinite recursion. Modify fn(int x, int y) method to fix the problem. (2 point) 7-2. Manually trace the recursive call, fn(2,3) and show the output (step by step). (2 point) 7-3. Can you identify the Base Case in recursive method fn(int x, int y)? (1 point)
6. See the code below and solve the following. import java.io.*; public class DataStream { } public static void main(String[] args) } DataOutputStream output = new DataOutputStream(new FileOutputStream("temp.dat")); output.writeUTF("Book1"); output.writeInt(85); output.writeUTF("Book2"); output.writeInt(125); output.writeUTF("Book3"); output.writeInt(70); output.close(); // ToDo: Read all data from temp.dat and print the data to the standard output (monitor) 6-1. This program has a compile error, and the message is “Unhandled exception type FileNotFoundException". How do you fix this error? (1 point) 6-2. Is FileNotFoundException a checked exception or an unchecked exception? (1 point) 6-3. What is the difference between checked exception and unchecked exception? (1 point) 6-4. Please complete the above program by reading all data from temp.dat and print the data to the standard output (monitor) by using System.out.print, System.out.println or System.out.printf method. (2 points)
Write a program that reads a list of integers from input and determines if the list is a palindrome (values are identical from first to last and last to first). The input begins with an integer indicating the length of the list that follows. Assume the list will contain a maximum of 20 integers. Output "yes" if the list is a palindrome and "no" otherwise. The output ends with a newline. Hints:   - use a for loop to populate the array based on the specified size (the first number entered)              - use a for loop to check first value with last value, second value with second from end, etc.              - if the values do not match, set a Boolean variable to flag which statement to output (yes or no)   Ex: If the input is (remember to include spaces between the numbers): 6 1 5 9 9 5 1 the output is: yes Ex: If the input is: 5 1 2 3 4 5 the output is: C++ coding

Chapter 18 Solutions

BUSINESS DRIVEN TECHNOLOGY(LL)-W/ACCESS

Ch. 18 - Prob. 1OCCh. 18 - Prob. 2OCCh. 18 - 1. What signs identify if a current project is...Ch. 18 - Prob. 2CQCh. 18 - Prob. 3CQCh. 18 - Prob. 1RQCh. 18 - If you started on a new software development...Ch. 18 - Prob. 3RQCh. 18 - How many gates are included in the RUP...Ch. 18 - Prob. 5RQ
Ch. 18 - Prob. 6RQCh. 18 - Prob. 7RQCh. 18 - Prob. 8RQCh. 18 - Prob. 1MBDCh. 18 - Prob. 2MBDCh. 18 - Scratch Scratch is a visual programming language...Ch. 18 - Prob. 4MBDCh. 18 - Prob. 5MBD
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Time Complexity Analysis - How To Calculate Running Time | InterviewBit; Author: InterviewBit;https://www.youtube.com/watch?v=--oxG4Q1PA0;License: Standard YouTube License, CC-BY