Given numStack: 23, 26, 94 (top is 23)
What does Peek(numStack) return?
Answers
Using the knowledge in computational language in python it is possible to write a code that create a program that takes a string as an argument into its constructor.
Writting the code:import java.util.*;
public class Expression
{
Scanner in = new Scanner(System.in);
Stack<Integer> stack = new Stack<Integer>();
public boolean check()
{
System.out.println("Please enter your expression.");
String newExp = in.next();
String[] exp = new String[newExp];
for (int i = 0; i < size; i++)
{
char ch = exp.charAt(i);
if (ch == '(' || ch == '[' || ch == '{')
stack.push(i);
else if (ch == ')'|| ch == ']' || ch == '}')
{
//nothing to match with
if(stack.isEmpty())
{
return false;
}
else if(stack.pop() != ch)
{
return false;
}
}
}
if (stack.isEmpty())
{
return true;
}
else
{
return false;
}
}
}
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Related Questions
For questions 1-3, consider the following code:
x = int(input("Enter a number: "))
if x != 7:
print("A")
if x >= 10:
print("B")
if x < 10:
print("C")
if x % 2 == 0:
print("D")
What is output if the user types in 10? Click all that apply.
Group of answer choices
D
A
C
B
Answers
Answer:
B
Explanation:
because 10 ranges between the x>=10
Write a note on scanning devices.
Answers
A scanner is a device that captures images from photographic prints, posters, magazine pages and similar sources for computer editing and display. Scanners work by converting the image on the document into digital information that can be stored on a computer through optical character recognition (OCR).
The programmer wants to change this code so that a third background image appears when the player presses the “B” button. What does the programmer need to do?
Answers
Answer:
i think its B but im not sure
Explanation:
In java language please.
Answers
A java program that creates a 2D integer array is given below:
The Program//Class RURottenTomatoes
public class RURottenTomatoes
{
//main method
public static void main (String[] args)
{
//Declaring & initializing variable to store index of command line argument
int index = 0;
//Obtaining number of rows & columns for 2D array from command line
int r = Integer.parseInt(args[index++]);
int c = Integer.parseInt(args[index++]);
//Creating a 2D integer array of r rows & c columns
int ratings[][] = new int[r][c];
//Declaring iterator for loop
int i, j;
//Declaring variable to store sum of a movie ratings, highest sum of movie ratings
int sum, highest;
//Declaring variable to store index of sum of highest ratings movie
int highest_index;
//Filling value in 2D array from arguments of command line
for ( i = 0; i < r; i++ )
{
for ( j = 0; j < c; j++ )
{
ratings[i][j] = Integer.parseInt(args[index++]);
}
}
//Initializing highest sum of movie ratings & corresponding index
highest = highest_index = -1;
//Calculating index of the movie with highest sum of ratings
for ( i = 0; i < c; i++ )
{
sum = 0;
for ( j = 0; j < r; j++ )
{
sum = sum + ratings[j][i];
}
//Checking whether
if(sum > highest)
{
highest = sum;
highest_index = j;
}
}
//Displaying index of the movie with highest sum of ratings
System.out.println(highest_index);
}
}
OUTPUTjavac RURottenTomatoes.java
java RURottenTomatoes 3 4 1 2 3 4 5 6 7 8 9 10 11 12 3
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The programming team knows they need to create a program that will use a linear data structure to complete large amounts of data manipulation very
quickly. Which data structure is most appropriate? (1 point)
O array list
O graphs
O linked list
O maps
Answers
The programming team knows they need to create a program that will use a linear data structure to complete large amounts of data manipulation very quickly. Given the above scenario, the data structure is most appropriate is: "Linked Lists" (Option C)
What are linked lists?It is to be noted that a linked list is a linear collection of data pieces whose order is determined by their physical placement in memory. Instead, each piece refers to the one before it.
It is a data structure made up of a collection of nodes that represent a sequence.
Linked lists are linear data structures that store information in separate objects known as nodes. These nodes include data as well as a reference to the next node in the list. Because of their ease of insertion and deletion, linked lists are often utilized.
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||||
Attempts Remaining: 1
Entering a Formula
Insert a formula in cell G4 that finds the value of subtracting
F4 from E4
Answers
Answer:
Explanation:
Formula:
= E4 - F4
where does an argument in a function go?
Answers
Answer:
Arguments are specified afterwards the operate name,inside the parentheses . you may add as many arguments as you want,just divide them with a comma .
Explanation:
Errors can be syntax errors or logic errors (the code works, but not as intended). In the Guess My Number game, there is a lower limit and an upper limit for the range of possible numbers to guess. If the lower limit were exclusive and the upper limit inclusive, which expression would properly generate values for the secret number?
(int)(Math.random() * (upper − lower + 1) ) + lower
(int)(Math.random() * (upper − lower) ) + lower + 1
(int)(Math.random() * (upper − lower + 1) ) + lower - 1
Answers
Errors can be syntax errors or logic errors (the code works, but not as intended) is option A: (int)(Math.random() * (upper − lower) ) + lower
What is the syntax errors about?The phrase that would correctly provide results for the secret number if the lower limit were inclusive and the upper limit exclusive is Option A
Note that we cannot increase the lower limit by one because it is INCLUSIVE. Additionally, the Math.random() function returns a result between [0,1[ that satisfies our requirements (meaning the 0 is included, but not the 1).
Therefore, We'll be flawless if the (int) caster returns only the integer component after rounding down the result.
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Why does internet privacy matter?
Answers
Answer:
Internet privacy is important because of the abundant amount of scammers, hackers, and others who want to exploit your information. It is also important to protect your personal information and browsing history, since these can be manipulated in many different ways.
Explanation:
The destination operand of the or instruction cannot be a memory operand.
a. True
b. False
Answers
The given statement is false. By performing a bitwise OR operation, the OR instruction supports logical expression.
What is OR instruction?By performing a bitwise OR operation, the OR instruction supports logical expression. If the matched bits from either or both operands are 1, the bitwise OR operator returns 1. If both of the bits are zero, it returns 0. One or more bits may be set using the OR operator. A bitwise instruction is an OR instruction. This implies that the digits of two integers with the same amount of bits (for example, two 32-bit numbers) are handled bit by bit (and not the complete number). If both "input" bits are 0, the OR instruction produces a result of 0, and a result of 1, if at least one input bit is a 1.A memory operand cannot be the destination operand of the OR instruction. The destination operand is always changed by the TEST instruction. The Zero flag is always set when an operand is XORed with 1. The two's complement of an integer can be created by applying the XOR instruction to it.The given statement is false. By performing a bitwise OR operation, the OR instruction supports logical expression.To learn more about OR instruction refer to:
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Can someone help me with this worksheet?
Answers
Answer:
Here are the answers
Explanation:
Task:
1. Create a user named Administrator with
unlimited amount of space
2. Change the password of Administrator
3. Grant update privileges on the
Student_name, GPA columns to
Administraor user from Student table
4. Remove Privilege Update from
Administrator
5. Create a profile named MGProfile with 2
sessions per user and the life time of
password is 160 and 3 failed attempts to
log in to the user account before the
account is locked.
Answers
Most frequent reasons for Windows operating system loading errors: broken or faulty BIOS. The size and settings of a computer hard disk are not supported by BIOS. damaged or faulty hard disk.
How to Fix Operating System Loading ErrorAny Windows laptop or computer may experience the problem of Windows Error Loading Operating System at any time. This occurs when the computer tries to boot but displays an error message such as "Error loading operating system."The good news is that you don't need to freak out when your computer won't turn on. You can try a number of tested techniques to recover your data and restore your device.Most frequent reasons for Windows operating system loading errors:Damaged or faulty BIOSThe size or settings of a computer hard drive are not supported by BIOS.damaged or faulty hard diskthe incorrect disk was selected as the bootable hard drive to load the operatingoperating system that is incompatible.To Learn more about loading errors refer to :
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A ______ is where one network ends and another begins.
Answers
Answer:
A demarcation point is where one network ends and another begins.
A demarcation point is where one network ends and another begins.
What is a demarcation point?Two or more computers are connected together to share resources (such as printers and CDs), exchange files, and enable electronic communications to make up a network.
Where one network stops and another starts is known as a demarcation point. Explanation: In addition to the demarcation point, other terms for it include demarc extension, point of demarcation, and simply demarc.
A demarcation point often called a boundary point or network boundary point marks the physical boundary between a customer's private network and the public network of a telecommunications provider. Typically, this is where the cable actually enters a structure.
Therefore, the term where one network ends and another begins is a demarcation point.
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Which device is not considered a computer?
a smartphone
an analog controller
Answers
Answer:
An analog controller is not considered a computer because you just move around the controls. You don't stare at a screen like a smartphone, so it is not a computer.
Explanation:
COPPA regulates personal information that companies can use. Which users does this law protect?
Answers
COPPA is required by law to protect children under the age of 13 years, from having their personal information used by companies.
What is a PII?PII is an abbreviation for personally identifiable information and it can be defined as any type of information that can be used by individuals or companies on its own or with other relevant data, so as to identify an individual.
In the United States of America, Children's Online Privacy Protection Act (COPPA) is required by law to protect all American children who are under the age of 13 years, from having their personally identifiable information (PII) being used by business organizations (companies).
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Complete Question:
COPPA regulates personal information that companies can use. Which users does this law protect? COPPA protects children under the age of ________ from having their personal information used by companies.
". When input is wrong, the output will also be wrong, it is term S a. GIGO c. Bug b. IPM d. Debug
Answers
Answer:
a.GIGO
b.bug
c.ipm
d. debug
it's answer is GIGO
1. What's the minimum RAM requirements to install or upgrade to Windows 11?
1 GB for 32-bit or 2 GB for 64-bit
O4 GB
8 GB
Answers
4 GB
Explanation:You need 4 gigabytes (GB) or greater. Storage: 64 GB* or greater available storage is required to install Windows 11. Extra storage space might be required to download updates and enable specific features. According to Windows 11 system requirements, my 4 GB ram is enough to upgrade my pc from windows 10 to windows 11.
A computer chip is
an example of hardware or software?
Answers
Answer: A system on a chip consists of both the hardware, described in § Structure, and the software controlling the microcontroller, microprocessor or digital signal processor cores, peripherals and interfaces.
write a java program using switch that allow the user to input length and width and check if it is square or rectangle.
Answers
import java.util.Scanner;
class check_rectorsq {
public static void main(String[] args) {
System.out.println("Enter length and width: ");
Scanner idx = new Scanner(System.in);
int x = idx.nextInt();
int y = idx.nextInt();
int f = (x==y) ? 1 : 0;
switch(f) {
case 1:
System.out.println("This is a square!");
break;
case 0:
System.out.println("This is a rectangle!");
break;
default:
;;
}
}
}
Define a Video Graphics Card.
is it an input, processing, storage or output device?
Answers
Answer:
output
Explanation:
video card, also called a graphics card, integrated circuit that generates the video signal sent to a computer display. A video card connects to the motherboard of a computer system and generates output images to display.
When assembling a career portfolio, what should a student do before assessing their work?
A.
consider the types of jobs they will likely apply for
B.
delete or throw away projects that are not good enough to include
C.
assemble the documents and files in the order they were created
D.
design a cover for a physical portfolio or a landing page for an electronic portfolio
Please don't guess.
Answers
Answer:
A.
Consider the types of jobs they will apply for.
Explanation:
It's critical to consider the types of jobs the student will apply for before assessing their work to know which information will be the most predominant and favorable to your employer.
Real estate management software
Answers
Answer:
nTireFM
Explanation:
is a comprehensive system for real estate vendors with unique and reliable needs. Real Estate Management Software simplifies your life as a real estate investor monitors the financial performance of each rental property
You have entered a URL into a browser and have received a 404 error. Which type of error did you receive?
Answers
Answer:
in redirect pages
Explanation:
the e page can not be down
Answer:
a 404 error is "File not found." This can happen when a file is deleted or there is an error in a hyperlink. It can also happen if a file is copied and the original deleted.
Explanation:
you're doing desktop support and the company policy is that you can only help with company equipment. a user walks in:
Answers
The responsibility of the desktop support technician is to support and maintain the desktops, peripherals, and computer systems of the organization. To achieve optimal workstation performance, this entails installing, identifying, repairing, maintaining, and upgrading all organizational hardware and tools.
How does desktop support work?IT support professionals known as desktop support engineers help customers with hardware and software difficulties. Their duties include providing on-site or remote technical support for computer hardware setup, software installation and upgrade, and basic IT problem-solving. While a help desk can resolve a variety of IT problems, desktop support is limited to resolving problems with desktop or laptop computers. It can help you install apps or fix a malfunctioning computer, but it can't assist with printers or networks. The help desk service often includes desktop support. Yes, for many people, a job in desktop assistance is a good fit. This position is appropriate for entry-level workers who want to
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is there anyone here who can teach me HTML
Answers
Answer:
Codecademy has numerous free programs to provide you with the technical skills you need. ...
Learn-HTML.org is a reliable source for everything you need to know about HTML. ...
General Assembly Dash is a popular site to begin to learn the basics of HTML.
The control lines in the bus connect the control unit to the CPU.
True
Or False
Answers
Answer:
true
Explanation:
The control bus contains a control line for writing instructions and a control line for reading instructions. When the CPU writes data to the main memory, it transmits a signal to the write command line. The CPU also sends a signal to the read command line when it needs to read.
Which of the following is the correct binary representation of the number 2?
Answers
Answer:
10 i think
Explanation:
Facial recognition software is useful for identifying a suspect in a crime because human features are ________.
all the same
unique to an individual
hard for a human to identify
difficult for computers to examine
Answers
Answer:
Its (B) unique to an individual
Explanation:
Got it right on my quiz.
A student wants to create an Android Application to help a motorist to approximate the cost of a journey
by road. The app should enable the user to enter the length of the journey in Kilometres, the amount fuel
that the vehicle uses per kilometre and the cost of fuel per litre. The app should then calculate the total
amount that will be spent on fuel for the journey.
Sketch the interface for the activity that can be used for this task. (5 marks)
b) Declare and initialize all the widgets (views) that you can use for this task. Assume your own ids.
(5 marks)
c) Write the program to calculate the cost of the journey.
Answers
Answer:
Explanation: How to calculate fuel economy and usage
Manufacturers give a fuel economy figure for new cars in litres per 100km for urban, extra urban (i.e. higher speeds) and combined (a mixture of the two). This number is determined via a standardised test which, unfortunately, bears very little resemblance to the type of driving the vast majority of people do. If a vehicle you are looking at purchasing has an indicated fuel economy of 8l/100km, everyday driving is probably more likely to be around 10l/100km (this is my experience, after driving and reviewing over 400 cars since 2007).
However, the manufacturer-supplied figures are good for comparing between models, just not calculating what your expected fuel costs will be.
1. What operating system are you using on your computer?
Answers
Answer:
Windows
Explanation:
Flexible and convenient