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Homework Help: Computers: Computer Science
Recent Homework Questions About Computer Science
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Computer Science
Using the operations push(E obj), peek(), pop(), empty() give a Java implementation of the method // Reverses the elements in the stack //and returns the result. // The stack passed as an argument to //reverse() will be // destroyed upon return. public static StackInt reverse ...
Computer science
PLEASE SOMEONE HELP ME! I need help calculating the charges and setup to display savings. 1. Help with calculations. No matter the numbers i input just the base rate comes up. 2. I need help changing the code to "Modify the program so it calculates and displays the amount...
computer science
a bank charges $10 per month plus the following check fees for a commercial checking account: $.10 each for fewer than 20 checks $.08 each for 20-39 checks $.06 each for 40-59 checks &.04 each for 60 or more checks write a program that asks for the number of checks written dur...
computer science
write a program that asks for the starting time and minutes of the call, and displays the charges. the program should ask for the time to be entered as a floating-point number in the form HH.MM. for example, 07:00 hours will be entered as 07.00, and 16:28 hours will be entered...
computer science
write a program that calculates a customer's monthly bill. it should input customer name, which package the customer has purchased, and how many hours were used. it should then create a bill that includes the input informtion and the total amount due. the bill should be wr...
computer science
I need help with c++ on the codeblocks. when i run the program with lines of code, i get this warning. warning: command line option "-Wmain" is valid for C/ObjC but not for C++ can anyone tell me what this mean???
computer science
ineed help with c++. i am using code blocks and i have a problem with the compiler. when I run this code ¡é # include <iostream> using namespace std; int main() { cout<<"Hello World!"<<endl return(0); } this message keep pops up. ¡...
Business Management questions
CASE 1—E-Biz Dreams Robert Downs has just completed a Master of Science degree in computer science at Major State University. He now wants to begin a new Internet business selling his services as a Web site maker for companies in his home city, St. Louis. He estimates tha...
computer science
I need help with my Java homework! Write a program that calculates a customer's monthly bill. It should ask the user to enter the letter of the package the customer has purchased (A, B, or C) and the number of hours that were used. It should then display the charges. Modif...
Computer Science
This is the problem: The following HTML code fragment contains a reference to an image file called frog.gif and with alternate text set to froggy, but the code as written contains a number of errors. Write the HTML line correctly. <IMG SCR=frog.gif ALT=froggy> (Note: thi...
computer science
explain six services provided by networks
english
- Computers - English - Foreign Languages - Health - Home Economics - Math - Music - Physical Education - Science - Social Studies GRADE LEVELS - Preschool - Kindergarten - Elementary School - 1st Grade - 2nd Grade - 3rd Grade - 4th Grade - 5th Grade - 6th Grade - 7th Grade - ...
compter science
computer science has taKE PLACE IN THE WORLD?CAN ANYONE TELL that will it take place in future ?
Computer Science
What is the halting problem? What does it have to do with self referential paradoxes? How do I make sense of this? "So suppose I have a black box which can decide the halting problem, that is I can give it a program P and the box tells me if P will ever stop. Using this I...
Computer Science
Could someone show me an example of a service class that reads an input file (Java)?
Computer Science-Java
Hi, I am writing an application class for a Lunar Calendar I created in a service class and I have to make sure it is able to detect that the year entered is not in the range of values(I have done this in the service class using a switch statement) and be able to detect if the...
Computer Science
Given that main memory is composed of three page frames for public use and that a program requests pages in the following order. dcbadcedcbae a.) using the FIFO range removal algorithm, do a page trace analysis indicating page faults with asterisks (*). then compute the failu...
Computer Science - Java
Hi, For an assignment I am doing, we have to have 2 service classes and one application class. One service class is already written (i.e. DiceGame1) and I am writing another one (i.e. Player) that is supposed to use the previous service class an instance variable. I was just w...
Computer Science Java
I have to write program for a dice game and use a boolean variable in the application class of the dice game that equals true when snake eyes, doubles, and box cars have been meet. I am having a little trouble doing that in my application class so I was wondering if somebody c...
Computer Science
I am learning in my computer science class about algorithms. My teacher wrote on the board: n= 1 running time= 1 3 1+1= 2 7 1+2= 3 15 1+3= 4 31 1+4=5 63 1+5= 6 127 7 255 8 511 9 1023 10 How in the world does this happen? It has something to do with log n steps. I don't und...
Computer Science
//program that puts two lists in order in one single list with all the numbers in order import java.util.Scanner; public class listOrder { public static void main (String [] args){ int [] list1; int [] list2; int [] list3; int temp; list1 = new int [10]; list2 = new int [10]; ...
Computer Science-Java
Hi, I have to prompt a user to input a password and have to verify whether or not it is a single word. How would I do something like?
Computer Science-Java
Hi, I have to write a method that returns my first name, middle initial, and last name as a single String and call the method in java. So far, I have: public class ReturnName { static String fullname(String firstname, String middleinitial, String lastname) { return firstname +...
Technology
I need help with my entry essay, "The Twentieth Century brought an explosion of discoveries and inventions in math, science, and technology. Choose one such discovery or invention, identify it, and name the people responsible. Then explain how this discovery or invention ...
math
28. Science and medicine. A computer can execute 36 instructions per microsecond. How many instructions can it execute in 4 min?
French
Sra, Can you please check my translations. James is from Alberta but he lives in Vernon, BC of Canada. James est de Alberta mais il habite dans Vernon, BC de Canada. James is 15 years old. James a quinze ans. James has a younger brother named Thomas. James a frère cadet...
English
1. I am in the RCY club. We do clean-up activities and help people in need. 2. I am in the gag club. We make scripts and do plays. 3. I am in the science invention club. We make things with plastic and metals and have a display show. 4. I am in the pop music club. We listen to...
Computer science
If the last value of Period is less than the number of periods specified in the Parameters worksheet, increment the Period value by 1, otherwise blank the cell(i.e. ""). What does this mean in spreadsheer syntax for excel using the IF function
IT Programming in South Africa for a 2007 matric..
IT Programming in South Africa for a 2007 matriculant? I matriculated 2007 with a Senior Certificate : HG Afrikaans 2nd Lang 45% HG English 1st Lang 51% SG Maths 66% SG Science 49% HG Biology 44% SG Computers 62% And I have experience with ms-dos, vbscript, javascript, css, ht...
Science/English
Here is my Science presentation, I'm having trouble with the last two sentences. What would you put as the last two sentences? Computer Technology My presentation is about how computers have changed from the past to the present. Then what I think is going to replace the co...
computer science /use java language
write the program that inputs a string representing a binary number(0s and 1s). First, your program should veerify that it is indeed a binary number, that is, the number contains only 0s and 1s . if that is not the case, your program should print a message that number is not a...
computer science
I have a horrible TA as a professor with a bad Indian accent that I cant understand and I am very confused with what we are doing. Encrypt the following byte message into its Cipher and again decrypt it into original form based on RSA public key cryptosystem. Message: 0001 010...
computer science
What copyright questions have emerged in the last few years?
computer science
how would 123 base 4 look in base 5 and why?
computer science
how was the price of computation changed over time?
computer science
Where do basic technical innovations most often originate?
Computer Science
Can anyone tell me where one could find help and advice for a talented 8-year-old on computer programming languages please?
JAVA PROGRAM SELECTION SORT USING RECURSION
JAVA PROGRAM Details: I'm having a trouble with the print lines, i'm not sure where to start but i think I got the rest down correctly. Please if there is a mistake in this program, let me know or correct my current program below, this program should be compiled in JGR...
Computer Science (Basics_)
How would I make an area2, if i already have a area1 in the program. I need to divide area2/area1.. then make a println statement for it... can someone help?
Computer Science (Basics)
public class Circumference { /** * @param args */ public static void main(String[] args) { // TODO Auto-generated method stub ; final double PI = 3.14159; int radius = 10; double area = PI * radius *radius; double circum = 2 * PI * radius; System.out.println("The area of ...
Writing
Excerpt – An entertainment-driven culture runs the risk of encouraging passivity among its citizens. If they can experience something vicariously through a movie, television show, or video game, why would they get involved with the activity itself? It’s safer, after ...
statistics
The head of a computer science department is interested in estimating the proportion of students entering the department who will choose the new computer engineering option. A preliminary sample indicates that the proportion will be around 0.25. Therefore, what size sample sho...
computer science
Final Project Overview and Timeline Final Project Overview The final project in COM 135 involves the creation of portions of a user manual for a product of your choice. This manual should contain the following elements: • The manual must be a Microsoft® Word document ...
criminal justice
Does anyone know any good websites where I can get some good info from for this assignment? For career day at the local high school, you have been chosen by the department to make a presentation to a computer science class regarding the use of computer technology in police wor...
Computer Science
I need help with these assignments. "Write a program to read a list of exam scores (integers in the range 0 to 100) and to output the total number of grades and the number of grades in each letter-grade category (90 to 100 = A, 80 to 89 = B, 70 to 79 = C, 60 to 69 = D, an...
Computer Science
I have defined a microscopic verson of scheme that utilizes amb. I am currently using Dr. Scheme. This is my definition: (define (amb-eval s environment succeed fail) (cond ((not (pair? s)) (succeed (cond ((eq? s '#t) '#t) ((eq? s '()) '()) ((eq? s '#f) ...
computer science
suppose binary heaps are represented using a pointer-based tree representation instead of an array. consider the problem of merging binary heap LHS with RHS. assume both heaps are full complete trees, containing (2^L) - 1 and (2^R) -1 nodes, respectively. Give two O(log N) alg...
Computer Science
In the program Turing, how would you move an box randomly around the screen. This is what I have so far: for row: 3..10 for column: 10..30 locate (row,column) put " ".. end for I think this creates a box. How would I move this box across the screen by only using rand...
English- Proofreading
Please proofread this paper (without paragraphing... sorry) Thank you so much! Jane Goodall, the eminent woman known for changing the human perception of chimpanzees, is a renowned primatologist, speaker, and humanitarian. After her parents divorced, Goodall was able to foster...
Computer Science....PLZ HELP
DESIGN A METHOD "popOne" IN THE "Stack" CLASS WHICH POPS AN EXISTING MEMBER FROM A STACK.
Computer Science
Design a GUI java application which dsipalys data of an array made from objects of three classes "students", "employee" and "officer" which all inherit from "person".
physics
Subjects Art Business Computers English Foreign Languages Health Home Economics Mathematics Music Physical Education Science Social Studies Features Contribute Download Experts Forum Job Openings Homework Tips Libraries.Jiskha Link to Us Reference School Supplies Search Homew...
Computer Science
How do you create a rotation matrix that will represent a rotation of angle theta about a vector (x,y,z)? This is instead of rotating about an axis.
Math essay
Can you please proofread my essay? My teacher is grading on accuracy, quality, correct spelling and grammer. The History of Mathematics As of today, there are plenty of new developments in the area of Mathematics. In at least some Mathematics courses, it doesn’t cross the...
Statistics- PEASE help!
Subjects Art Business Computers English Foreign Languages Health Home Economics Mathematics Music Physical Education Science Social Studies Features Contribute Download Experts Forum Job Openings Homework Tips Libraries.Jiskha Link to Us Reference School Supplies Search Homew...
Computer Science/Excel
Here's the problem: John believes that the average American will be in debt forever. He decides to create a table that demonstrates this. He thinks that given 60 months (5 years) to get out of debt and the annual percentage rates 1-5 and 7-15 the percentage of the balance ...
science
Subjects Art Business Computers English Foreign Languages Health Home Economics Mathematics Music Physical Education Science Social Studies Features Contribute Download Experts Forum Job Openings Homework Tips Libraries.Jiskha Link to Us Reference School Supplies Search Homew...
Computer Science
Help me please! I need help with Floating Point Notation when converting biary and regular numbers! Please. I just need some help and would appreciate it greatly. Also instant message me at TRbal10. Thank you
Computer Science
Describe, in detail, the job of the operating system. Include the major jobs and secondary jobs that increase performance. How do utility programs support the OS? In addition, give examples of various operating software, citing advantages and disadvantages of each one.
biology
Subjects Art Business Computers English Foreign Languages Health Home Economics Mathematics Music Physical Education Science Social Studies Features Contribute Download Experts Forum Job Openings Homework Tips Libraries.Jiskha Link to Us Reference School Supplies Search Homew...
math, economics, game theory
Subjects Art Business Computers English Foreign Languages Health Home Economics Mathematics Music Physical Education Science Social Studies Features Contribute Download Experts Forum Job Openings Homework Tips Libraries.Jiskha Link to Us Reference School Supplies Search Homew...
International business
Where does Sony produce and market its products? Sony was founded in 1946. It is a huge company. This is a list of its affiliated companies Sony Assurance Inc. Sony Bank Inc. Sony Broadband Solutions Corporation Sony Broadcast Media Co., Ltd Sony Chemical & Information Device ...
human services my answers
Progress made in medical sciences is tremendous. Small pox is wiped out. Given the improvement in health care the death rate has reduced compared to centuries ago. Longevity is also significant. As an elected government, it is their responsibility to provide health services to...
computer science
Hi, I have this quick question: A Java interface can be used almost anywhere a class can be. Describe the one place/situation where it cannot be used in a place of a class name. Thanks a lot. Not sure what you mean by "in a place of a class name."
computer science
Here is a question which for some reason I feel very unsure with. Can you guys take a look and see if you agree or disagree with what I have? I personally think that the below situation is safe and secure: Your software company has produced the following Unique class definitio...
Computer Science
Help me find the answers to these brain teasers. #1 I am where the sky is orange; I am where the grass is red; I am the land of violet bananas and the home to blue oranges. What am I? #2 Wha is a word that is 1 syllable but when you add 1 letter the end; it becomes 3 syllables...
Chemistry
Subjects Art Business Computers English Foreign Languages Health Home Economics Mathematics Music Physical Education Science Social Studies Features Contribute Download Experts Forum Job Openings Homework Tips Libraries.Jiskha Link to Us Reference School Supplies Search Homew...
Comp.
Could anyone help me Please.. about the uses of the computer on the following fields. 1.Business 2.Arts and Films 3.Music 4.Engineering 5.Manufacturing 6.Police and Laws Enforces 7.Medicine 8.Education 9.Science and Research 10.Archeology Thanks :-) http://en.wikipedia.org/wik...
Critical Thinking 205
So I've been searching, checking the web on many different search engines, the college library. and have not found an example of a nonprejudicial rhetorical device. So it would be safe to say there is no such thing as a nonprejudicial rhetorical device? Rhetorical devices ...
Computer Science
Describe Operating systems theory and configuration at the Unix kernel/Windows registry level Describe standard operating system services (RPC, NetBIOS, etc) Describe File storage, management, and security shemes Describe command line administration of UNIX/Windows Describe co...
Algebra
How would I complete this problem? Geometry. The area of a rectangle of length x is given by 3x^2 + 5x. Find the width of the rectangle. I think the width is 3x+5 but not sure. Subjects Art Business Computers English Foreign Languages Health Home Economics Mathematics Music Ph...
Computer science (Java programming)
Why are the use of GUIs and graphics beneficial in programming? Try writing with and without them and write your feelings about each. Then pick out the benefits of GUIs and write about that. Matt
Math
I can't seem to do this problem. And my grade is riding on it. Can someone please help? I don't know how to solve it. Can someone help me by telling me what I'm doing wrong? The problem is 3y = 2x + 12 My Work: 0=2x+ 12 -------- 2 2 x=6 You cannot solve this equati...
English
im an only child and parents are too busy to help so, i need to interview someone that went to school 20 years ago and i was wondering if anyone would like to help me. Theses are my 7 questions because i already have 3 answered: 1.How was school like back then for you? 2.What ...
computer science
Hi, I need to design a state machine for a simple CPU. The cpu has a word size of 4 bits, 4 registers, and 2 register ports (A and B) which go to a ‘181 ALU. Our data-input device consists of two DIP switches, which go to the data-in port of the register file. The sole me...
S103 - Discovering Science
Is anyone Studying S103-Discovering Science. On TMA 6 blocks 7-8, having a little trouble can anyone Help Rather than using abbreviations, could you give us more details about your problem? This would help us to help you. I hope this helps a little. Thanks for asking. a) Compo...
Where are the teachers?
I really need help and no offense but I would prefer Dr.Bob or Writeacher or somebody that knows what they're doing. Where are they? okay well i'm not a teacher but i will try to help if i can. i'm a tutor if that gives you any confidence Okay, how do you find the ...
Morse Code Please Answer!
My book doesn't explain how, for example, if D was --. and O was .-. than how would they tell the end of the D from the beginning of the O? Did they pause between letters? But then how would they know the difference between a "new letter" pause, and a "new w...
math
Subjects Art Business Computers English Foreign Languages Health Home Economics Mathematics Music Physical Education Science Social Studies Features Contribute Experts Forum Job Openings Homework Tips Libraries.Jiskha Link to Us Reference Parents & Teachers School Supplies Se...
computer science
Is there a website that explains computer terms and definitions? http://www.computeruser.com/resources/dictionary/ http://www.webopedia.com/ Another site from your first post is below.
computer science
Is there a website that explains computer terms and definitions? http://whatis.techtarget.com/
for David, French
Thank you for using the Jiskha Homework Help Forum. I have been unable to read your question because of "error, Gateway timed out" BUT since I know you are requesting a translation site to do long sentences correctly, let me post what I wrote yesterday for the same t...
Computer science
If we have any five numbers. how do we find maximum and minimum number of those. You take the first number and store it in variable Min and Max. Then you take the second number. If that number is larger than the variable Max you overwrite Max and store that varible there. If n...
computer science
How to Do ARRAYS Type arrays into Google and click on the Wikipedia link.
Economics
6. Show the effect of each of the following events on the market for labor in the computer manufacturing industry. Use graphs. a. Congress buys personal computers for all American college students. Wouldn't the demand curve shift to the right while the supply curve stays t...
computer science
Algorithm for Binomial Numbers Task Binomial numbers (or binomial coefficients) are important positive integers that arise frequently in computing and mathematics. A function to compute binomial coefficients will have two inputs: n and k. The corresponding coefficient is writt...
essay help
how have you taken advantage of the educational opportunities you have had to prepare/ It’s unbelievable how each year, since the beginning of high school, my perfectly laid plans for myself have deteriorated. When I entered my freshman year, I had dreams of being a docto...
algerbra
who invented algerbra and why is it important I searched on the internet and found notations as far back as 1850 BC (that's a long time ago) by a plethora of nations (Egypt, India, and others). Your next question is easier to answer. MOST of the work required of students i...
science
An area in your state has been flooded due to heavy rains. How might scientists from the three main branches of science interact in their study of the flood, its effects, and how future flooding might be controlled? OK, I will bite: What do you think the three main branches of...
math
what do you call the numbers that cannot be arranged into 2 row arrays The 4th time I'm seeing this question. Would you please tell me what class this question is for? I'm not aware of any special name for 2 row arrays and I'd like to know the answer too. Is this c...
Math
Can someone walk me through these becuase I'm just not getting it.... Let f(x)= 3 x 4^x. A.) 16f(x)= f(x+2) B.) f(x)= f(x-1) The quickest way to answer this question is to try different test values for x. My favorite was the number 13. Set x to 13, and see if A and/or B ho...
Social Science
Write for me something about 'Role of women in India's struugle for freedom' with summary and some photos based on the above topic.And it should also contain suitable heading.Introduction part is the must in the whole. I need all this to be done because this has be...
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