Working with ArrayLists
Write a Java program that performs the following:
Creates an ArrayList, called al that can store integers Fills the al ArrayList with 10 random integer numbers between 1 and 100 Prints the content of al Removes the first element of al. Prints the removed element in step d. Prints the content of al again. Hint: Think it through. Would al look the same or different and why?
Answers
Here is a Java program that performs the required steps:
import java.util.ArrayList;
import java.util.Random;
public class ArrayListExample {
public static void main(String[] args) {
ArrayList<Integer> al = new ArrayList<>();
Random random = new Random();
for (int i = 0; i < 10; i++) {
int randomNumber = random.nextInt(100) + 1;
al.add(randomNumber);
}
System.out.println("Content of al: " + al);
int removedElement = al.remove(0);
System.out.println("Removed element: " + removedElement);
System.out.println("Updated content of al: " + al);
In the above program, an ArrayList named al is created to store integers. The Random class is used to generate random numbers between 1 and 100. The for loop is used to fill the al ArrayList with 10 random integers.
After filling the ArrayList, the content of al is printed using System.out.println("Content of al: " + al);.
Next, the first element of al is removed using the remove() method, and the removed element is stored in the removedElement variable. The removed element is then printed using System.out.println("Removed element: " + removedElement);.
Finally, the updated content of al is printed using System.out.println("Updated content of al: " + al);. It will show the ArrayList without the first element.
The reason for the difference in the content of al is that the remove() method removes the element at the specified index and shifts all subsequent elements to the left. As a result, the ArrayList will have a different content after removing the first element.
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Related Questions
1 Which skill-based video game requires quick reflexes and skills with weapons?
role-playing games
shooter games
puzzle games
visual novel games
2 Thinking about the operations needed in these games, which game is likely to be one of the oldest games in the world?
tag
dice throwing
jump-rope
tic-tac-toe
3 What is the difference between “games” and “play?”
games are organized play
play has no consequences
games last longer
children play; adults game
4 What describes a special kind of game that is designed to mimic an experience or activity so that you can learn about it first-hand?
simulation
adventure
role-playing
puzzle
5 What is the advantage of learning through story compared to learning through personal experience?
stories are “more real” than personal experience
stories are easier to remember than personal experiences
stories have no rules to follow
you can learn from countless other lifetimes through stories
6 What term describes the story of a game?
tale
fable
narrative
setting
7 Game have been a part of human life only recently in human history—about 1100 AD.
True
False
8 In the outdoor game four-square, players attempt to bounce a ball in such a way that another player cannot return the ball. When someone fails to return the ball, they move out of their square, and everyone else advances a square hoping to reach the server square where they get to dictate what types of bounces everyone can make. Dictating the tricky bounces that everyone has to make is an example of what element of a game?
objective
operation
obstacles
outcome
Answers
The Answer to Number 1 is Shooter Games
The Answer to Number 2 is Dice Throwing
The Answer to Number 3 is Games are organized play
The Answer to Number 4 is Either Simulation or Adventure
The Answer to Number 5 is Stories have no rules to follow, you can learn from countless other lifetime through stories
The Answer to Number 6 is Setting
The Answer to Number 7 is False
The Answer to Number 8 is Objective
_______ data encompasses all raw facts contained within a single process and its purpose is to support daily operational tasks.
Answers
Transactional data encompasses all raw facts contained within a single business process and its key purpose is to support daily operational tasks.
Transactional data is information that is obtained from transactions of business conduct of an organization. Transactional data records the time of the transaction, the place where the transaction occurs, the price points of the purchased items, the payment method employed, discounts if any, shipping documents, insurance claims, sales orders, purchase orders, invoices, and other quantities and qualities associated with the transaction.
Transactional data supports day-to-day business operations of sales and purchases of an organization. In the organization, the data analytics team and the information technology operational team are the main handlers of transactional data.
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Using a single 8-bit adder, add extra logic to create a circuit that outputs the absolute value of an 8-bit 2 's complement input X. For example, if X =−112
10
, the output should show 112
10
. The 8 -bit adder has the following ports: A
7
,A
0
,B
7
..B
0
,C
in
to the LSB stage, S7.. S
0
,C
0ut
from the MSB stage. Show the block diagram with the 8-bit adder as a black-box.
Answers
If the MSB of X is 0 (indicating a positive number), the outputs S0 to S7 also represent the absolute value of X.
To create a circuit that outputs the absolute value of an 8-bit 2's complement input using a single 8-bit adder, you can follow these steps:
1. Take the 8-bit 2's complement input, X, and pass it through the 8-bit adder as A0 to A7 inputs.
2. Set the B inputs of the adder to a constant value of 0.
3. Connect the C_in input of the adder to a constant value of 1, which represents a carry-in of 1 to the least significant bit (LSB) stage.
4. The S0 to S7 outputs of the adder will give you the sum of X and 0.
5. The C_out output of the adder will indicate whether there is a carry-out from the most significant bit (MSB) stage.
6. Take the outputs S0 to S7 and pass them through some additional logic to generate the absolute value of X.
7. If the MSB of X is 1 (indicating a negative number), and there is a carry-out from the MSB stage (C_out = 1), invert the outputs S0 to S7 using a bitwise NOT operation. This will give you the two's complement of X.
8. If the MSB of X is 1 (indicating a negative number) and there is no carry-out from the MSB stage (C_out = 0), then the outputs S0 to S7 already represent the absolute value of X.
9. If the MSB of X is 0 (indicating a positive number), the outputs S0 to S7 also represent the absolute value of X.
Here is a simplified block diagram of the circuit:
```
+-------+
X --------> | |
A | 8-bit |
0 --------> | Adder | ------------> Absolute Value
B | |
7 --------> | |
+-------+
```
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What is the 4-bit number for the decimal number ten (10)?A. 0010B. 1010C. 0110D. 0101
Answers
The 4-bit number for the decimal number ten is 1010, hence option B is the correct answer.
What is meant by the term 4-bit number?4-bit computing refers to computer architectures in which integers and other data units are four bits wide. 4-bit central processing unit (CPU) and arithmetic logic unit (ALU) architectures are those based on 4-bit registers or data buses.
In summary, The term "4-bits" refers to the ability to represent 16 different values. Depending on the architecture of the circuit, these values could be anything.
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what was the name of the telepresence system pioneered in the eller college of management that allowed for remote synchronous classroom instruction?
Answers
The device featured immersive touch input employing a full upper-body exoskeleton along with stereoscopic picture presentation from the remote environment. the first telepresence business to experience economic.
What kinds of telepresence systems are examples of?Telepresence applications include managing operations on a space mission, operating surgical equipment just a few feet away, manipulating deep-sea probes remotely, and interacting with hazardous substances.
A telepresence room is what?For the purpose of employing telepresence equipment during video conferencing, telepresence rooms are private, bookable spaces. These places are visually and acoustically private. From six to eighteen people can be accommodated in small, medium, and big rooms.
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What percentage of STEM-related degrees awarded in the 2002-2003 academic year were doctorates?
16.7 percent
0 34.8 percent
O 14.6 percent
O 12.9 percent
Answers
Answer:
34.8
Explanation:
I just took the test!
write essay about how to use credit correctly
Answers
Hint: Commands to study to answer this question: grep, wc, echo, pipe ( | ), ps, process states, and man pages for ps options
NOTE: Use man command before you start answering this question and before issuing script command to find the options to use with the ps command to find the answers in this question as well as to find the characters representing the various states of a process.
1) Issue appropriate command to display your processes, that is, processes for which you are the owner
2) Display information about your processes using long option
3) Examine the output of the previous command and with echo command, display the name (command name) and the state character for your shell process and the meaning of the state character. You have to look at the man pages for the ps command to see the meaning of the process state character before doing this question when the script is not in effect. Never issue man command when script command is in effect.
4) Using echo command, answer the process id (pid) of the shell process and the parent pid of your shell process
5) Display all the processes in the system using an appropriate option other than long option
Answers
launching the shell script Open the shell script file using a script command-line text editor Within the script, locate the line that contains "ls-s" command.
1) To display your processes, use the command "ps -u ". Replace with your actual username. This will display all processes for which you are the owner.
2) To display information about your processes using long option, use the command "ps -l". This will display a long format listing of your processes, including process ID (PID), CPU usage, memory usage, and other details.
3) To display the name and state character for your shell process, use the command "echo $0 $(ps -o state= -p $$)". The state character represents the current state of the process, such as "R" for running, "S" for sleeping, or "Z" for zombie. You can find the meanings of the different state characters in the man pages for the ps command.
4) To display the PID and parent PID of your shell process, use the command "echo $$ $(ps -o ppid= -p $$)". The PID is the unique identifier for the process, while the parent PID is the ID of the process that started it.
5) To display all processes in the system, use the command "ps -ef". This will display a listing of all processes, including those owned by other users. The "-e" option specifies all processes, while the "-f" option provides a full format listing.
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Write a program in the if statement that sets the variable hours to 10 when the flag variable minimum is set.
Answers
Answer:
I am using normally using conditions it will suit for all programming language
Explanation:
if(minimum){
hours=10
}
The body of the letter should state why you are writing the letter.
True
False
Answers
Answer:
True
Explanation:
Consider the following program:
01 y = input("enter a number")
02 x = y MOD 5
03 if x == 0 then
04 print (True)
05 endif
Which programming constructs are not used in this program?
Selection
Sequence
Iteration
Answers
Answer:
Iteration is not used in the program
Explanation:
Analysing the program one line at a time.
The first two lines are:
y = input("enter a number")
x = y MOD 5
The above lines show a sequential control structure. This is so because the first line is executed before the second (i.e. in sequence).
The third to the last lines are:
if x == 0 then
print(True)
endif
When a program includes at least one if statement or condition, this means that the program contains a selection program control structure.
The above lines may or may not be executed depending on the condition (if x == 0 then)
If the value of x is 0 then, True will be printed. If otherwise, True will not be printed
The program does not use iteration control structure because no part of the code were looped or repeated.
Each generation is set apart from the previous generation because of an innovation.
Choose the generation marked by each of these innovations.
transistors
: integrated circuits
: vacuum tubes
Answers
Answer:
Second Generation: transistors
Third Generation: integrated circuits
First Generation: vacuum tubes
Explanation:
Generations of computers are categorized based on the technologies that were used in them.
Given innovations or technologies are:
transistors :
Transistors were introduced in the second generation in place of vacuum tubes.
integrated circuits :
Integrated circuits were introduced in the third generation. An IC consists of multiple transistors.
vacuum tubes:
The very first generation of computers used vacuum tubes to do the calculations. the only drawback was that the tubes used to heat up very soon.
Hence,
Second Generation: transistors
Third Generation: integrated circuits
First Generation: vacuum tubes
Hardware- The ______________ equipment that makes up the computer.
Answers
Answer:
It's like the stuff you can touch, the software is the stuff that runs in your computer
Explanation:
Hardware has those usb ports or whatever too (i think lol) good luck
plz help me I have to submit the work before the day ends
13. (a) State one area where computers are used.
(2 marks)
(b) Give any two advantages of using computers in this area
(4 marks)
(c) Explain three effects of computer technology in the following areas:
(i) Job opportunities
(3marks)
Answers
Answer:
13. (a) One area where computers are used is in the creation of a record of auxiliary workers, doctors, nurses, patients, vendors, and payments that can be easily retrieved at an hospital
(b) Two advantages of using computers in an hospital are;
1) The ability to easily access the health record of a patient by a member of staff involved in treating the patient from any location
2) The reduction in the number of physical files and document kept at the counter or record storage which takes up more space as new patients are registered, even when the number of active patients remains the same
(c) Three effects of computer technology in the following area are;
(i) Job opportunities
1) The introduction of the desktop computer, increased the number of job opportunities in desktop publishing, administrative assistance and secretarial role
2) Computer technology has made more people able to work from home
3) Computer applications use with computer technology and developed to work with production machines has created a large number of machine operator job opportunities
Explanation:
Fault tolerance refers to
how a network fails.
how well a network recovers after a failure.
mirror operations.
servers.
Answers
Answer:
servers
Explanation:
because it good for servers
Answer: How well a network recovers after a failure.
Explanation:
how do I open this thing? it is stuck
Answers
Answer:
the little button
Explanation:
the python language uses a compiler which is a program that both translates and executes the instructions in a high-level language. T/F
Answers
Answer:
False
Explanation:
Python is an interpreted language, not a compiled one.
Who has gotten a random file link from someone? What file does it contain?
Answers
Answer:
those are bots , just report those
Explanation:
what is the binary equivalent of the hex value 78? (note it is not 78 in decimal but 78 in hex written more precisely as 0x78 where the prefix 0x simply tells us that what follows is a hex value)
Answers
The binary equivalent of the hex value 0x78 is 01111000. Binary is a number system that uses only two symbols: 0 and 1.
These symbols are often referred to as "bits," where each "bit" can have a value of either 0 or 1. It is a base-2 number system as opposed to the more commonly used base-10 system (decimal) which uses the digits 0-9. Binary is used in digital systems and computer technology to represent and manipulate data. It is the foundation for machine-level operations and is used to store and process data in memory, on disk and in network communications. It is also used to represent characters, images, sound, and other forms of information in computers and other electronic devices. To convert a hex value to its binary equivalent, you can break it down into its individual digits and convert each digit to its binary representation.
In this case, the hex value 0x78 is equivalent to 7*16 + 8 = 120 in decimal, and the binary representation of 8 is 1000, and the binary representation of 7 is 0111. so the binary equivalent is 01111000.
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Which of the following is not a valid way to write a string?
Using single quotation marks around the characters
Using double quotation marks around the characters
Using triple single quotation marks around the characters
Using parenthesis around the characters
Answers
The statement which is not a valid way to write a string is: C. Using triple single quotation marks around the characters.
What is a string?In Computer technology, a string can be defined as a data type which is commonly used for data values that typically contains ordered sequences of characters.
This ultimately implies that, a string can either contain a single character or be entirely empty. Additionally, "Hello world" is a typical example of a string in computer programming.
In Computer programming, some of the valid way to write a string include the following:
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The form and keying style that a typist uses while operating the keyboard is called?
Answers
move forward as well as back as each key is struck. b. move from side - to - side because each code is struck
What is a keying style?the manner in which a typist uses the keyboard when using it. Touch technique. To the right of a monitor and keyboard, to key using touch rather than the hunt-and-peck approach. Use short, sharp strokes for the right typing technique. In order to type correctly, one must stand somewhat straight ahead of the keyboard.
Your fingertips rest on the keys in the middle row, often known as the home row, of the computer keyboard when you aren't typing. For instance, the first row keys for your left hand on the common QWERTY American keyboard are A,S,D &F
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a pulley is used to read a package that weighs 60N how much effort is required if that mechanical advantage is 1
Answers
Answer:
\(mechanical \: advantage = \frac{load}{effort} \\ \)
substitute:
\( 1 = \frac{60}{effort} \\ \\ { \boxed{effort = 60 \: \: newtons}}\)
Supplies/material used in iron
Answers
suppose that every connection requires 2 consecutive hops, and calls are connected clockwise. for example, a connection can go from a to c, from b to d, from c to a, and from d to b. with these constraints, what is the is the maximum number of connections that can be ongoing in the network at any one time?
Answers
The maximum number of connections that can be ongoing in the network at any one time is 8. This is because each connection requires 2 hops, and there are 4 nodes in the network. Therefore, each node can have a maximum of 2 connections, leading to a total of 8 connections.
What is Network?
Network is a interconnected system of computers, mobile devices, and other computing hardware. It enables users to share data, access applications, and communicate with each other. Networking is essential in today's world, as it allows businesses to connect with customers, partners, and suppliers in a cost-effective and efficient manner. Networking can be used for a variety of tasks, including file sharing, printing, email, and remote access. Networking also provides access to the Internet, allowing users to access web content and services.
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How are online sources used? Check all that apply.
as a way to learn from others
as a way to play games
as a way to find information
as a way to socialize with others
as a way to copy the work of others
( and if not answer correctly I will report) · ⊃
·
Answers
Answer:
1 3 and 4
Explanation:
Answer:
as a way to learn from others
as a way to find information
as a way to socialize with others
Explanation:
Explain why the receptionist responded as indicated in the following scenario.
Situation: Jim and Roger are meeting with the executives of the company. They are both wearing blue jeans, polo shirts, and ties. As they walk past the receptionist, he stops them and reminds them the dress code is white collar.
Answers
Hope this helps!
Which of the following image file formats use lossless file compression? Choose all that apply.
BMP
GIF
JPEG
PNG
RAW
TIFF
Answers
Answer:
GIF
PNG
TIFF
Explanation:
I did this already. :)
BMP, PNG, RAW, and TIFF formats use lossless file compression. Therefore, options A, D, E, and F are correct.
What is lossless file compression?Lossless file compression is a data compression technique that reduces the size of a file without losing any of its original data. In other words, when a file is compressed using a lossless compression algorithm, it can be decompressed to its exact original form without any loss of information.
This is in contrast to lossy compression, which involves removing some data from the file in order to achieve a smaller size. Lossless compression works by identifying patterns and redundancies within the data and replacing them with more efficient representations.
Thus, BMP, PNG, RAW, and TIFF formats use lossless file compression. Therefore, options A, D, E, and F are correct.
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/REQUIRES: v is not empty
//EFFECTS: returns a summary of the dataset as (value, frequency) pairs
// In the returned vector-of-vectors, the inner vector is a (value, frequency)
// pair. The outer vector contains many of these pairs. The pairs should be
// sorted by value.
// {
// {1, 2},
// {2, 3},
// {17, 1}
// }
//
// This means that the value 1 occurred twice, the value 2 occurred 3 times,
// and the value 17 occurred once
std::vector > summarize(std::vector v);
And these are the libraries I can use what the stub looks like:
#include
#include
#include
#include
#include
vector > summarize(vector v) {
return { {} }; // avoid Visual Studio error "function must return a value"
}
Answers
It is not clear what the requirement of the above prompt is. Note however, that the given code defines a C++ function called "summarize" that takes a vector of integers as input and returns a vector of vectors, where each inner vector is a pair of an integer value and its frequency in the input vector.
What is the rationale for the above response?The function has an empty return statement, which is a placeholder and doesn't provide the desired functionality. The code includes the necessary header files and library functions, such as "vector" and "pair", which can be used to implement the summarize function.
A function is essentially a "chunk" of code that you may reuse instead of writing it out several times. Programmers can use functions to break down or break down an issue into smaller segments, each of which performs a specific purpose.
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Kris is the project manager for a large software company. Which part of project management describes the overall project in detail? Analysis report Resources document Scope Scope creep
Answers
Answer:
The given option "Resource document" is the correct answer.
Explanation:
Whenever it applies to chronology as either the documentation a resource records collection of specific documents should indeed be regarded as a component of this kind of record. The resource component encompasses a series of proclamations provided by the researcher including its memorandum, and therefore is willing to take responsibility for each other by the very same body is nonetheless accountable again for the file.The remaining three options do not apply to something like the specified scenario. And the latter is the correct one.
Answer:
Resource document
Explanation:
Which science fiction author was born in the 1800s?
Frank Herbert, Robert Heinlein, Edgar Rice Burroughs, Isaac Asimov
Answers
Answer:
Edgar Rice Burroughs, known for his work in Science Fiction and Fantasy, was born in the 1800s.
Explanation:
Other Choices:
Frank Herbert was also a known Science Fiction writer, but he wasn't born until 1920.
Robert Heinlein was born in 1907 and also a well-published Science Fiction author and military officer.
Isaac Asimov, much like Frank Herbert, wasn't born until 1920 and contributed to the same field of literature.