I need some help to explain the meaning from line 5 to line 9. Thanks String words = "Rain Rain go away"; String mutation1, mutation2, mutation3, mutation4; mutation1 = words.toUpperCase(); System.out.println ("** " + mutation1 + " Nursery Rhyme **"); mutation1 = words.concat ("\nCome again another day"); mutation2 = "Johnny Johnny wa...
Here is the question: The driving distance between Perth and Adelaide is 1996 miles. On the average, the fuel consumption of a 2.0 litre 4 cylinder car is 8 litres per 100 kilometres. The fuel tank capacity of such a car is 60 litres. Design and implement a JAVA program that prompts for the fuel consumptio...
I am given a number N, and i must add some numbers from the array V so that they wil be equal. V is consisting of numbers that are all powers of 3: N = 17 S = 0 V = 1 3 9 27 81 .. I should add numbers from V to N and S in order to make them equal. The solution to the example above is : 17 + 1 + 9 = 27, 27, 1 and 9 are taken fr...
Hi there, I posted this question earlier but not with the code in its entirety. The coe below also calls to other classes Background and Hydro which I have included at the bottom. I have a Nullpointerexception at the line indicate by asterisks. Which would suggest to me that the Collections are not storing data properly. Although when I...
For an assignment in college, we have to make a script in Perl that allows us to manage an inventory for an e-store. (The example given was Amazon). Users can make orders in a fully text-based environment and the inventory must be updated when an order is completed. Every item in the inventory has 3 to 4 attributes: a product code, a ti...
I have been asked to write a program using python for an assignment. I have been given a syslog file and I have to find things out about it How do I find out how many attempts were made to login to the root account? Any advice would be highly appreciated as I am very new to python and completely lost! ...
Are there any standard implementations of Mobile IP for Linux? If I want to support mobile IP for a network, what all needs to be done? If I have to write code from scratch, is it likely that a kernel module will suffice or I would have to make changes to the kernel code. I just need a bit of headstart to know where to begin. ...
how do i count how many logins were done per day on a system using the log file n python? ...
Hi, I need a C# function that takes 2 strings as an input and return an array of all possible combinations of strings. private string[] FunctionName (string string1, string string2) { //code } The strings input will be in the following format: String1 eg -> basement String2 eg -> **a*f**a Now what I need is all combinations of ...
I have came across the following code, and being a C beginner, I came here for your help. This function is from a c implmentation of a queue. Bool queuePut(Queue *q, char c) { void beep(); if (queueFull(q)) { beep(); return false; } //do stuff return true; } So, I am getting a strange erro...
I have a simple task. There are two classes : Ticket and Date. Ticket contains event, event place and event date which is a Date object. I also need to provide a move() method for Date object, so I used Calendar and Calendar's add(). Everything looks fine apart of the output. I constantly get the same date for all Event objects. The code...
Ok, so I don't want you to do my homework for me, but I'm a little lost with this final assignment and need all the help I can get. Learning about programming is tough enough, but doing it online is next to impossible for me... Now, to get to the program, I am going to paste what I have so far. This includes mostly //comments and what I ...
I've been trying to do a function that returns the Cartesian Product of n sets,in Dr Scheme,the sets are given as a list of lists,I've been stuck at this all day,I would like a few guidelines as where to start. ----LATER EDIT ----- Here is the solution I came up with,I'm sure that it's not by far the most efficent or neat but I'm only ...
Here's my program so far: int main() { char choice = 'D'; string inputString; cout << "Please input a string." << endl; getline(cin, inputString); LetterCount letterCount(inputString); while(choice != 'E') { cout << "Please choose from the following: " << endl << "A) Count the number o...
Ok, I'm lost. I am required to figure out how to validate an integer, but for some stupid reason, I can't use the Try-Catch method. I know this is the easiest way and so all the solutions on the internet are using it. I'm writing in Java. The deal is this, I need someone to put in an numerical ID and String name. If either one of the...
Ok so I have a problem with getline. I have a file that contains a couple strings. I created it by myself and I have each string on a seperate line. Ex. textfile.txt Line 1 Line 2 Line 3 Line 4 //Little snip of code ifstream inFile("textfile.txt"); getline(inFile, string1); When I debug the program and ask it...
Hello I have allocated and array of Objects Objects *array = new Objects[N]; How should I delete this array? Just delete[] array; or with iterating over the array's elements? for(int i=0;i<N;i++) delete array[i]; delete[]; Thanks UPDATE: I changed loop body as delete &array[i]; to force the code to compile. ...
If B is subclass of A. And I have in main(): B** b = new B*[10]; ... // some algorithm that does b[i] = new B(..); So I have an array of pointers to objects B. Then I have a function: void f(A** foo); If in main, I do: f(b); I get a warning, but obviously if I do: f((A**)b);, I don't. The (A**) its a bit nasty. I was wondering i...
What is meant by String Pool ? What is difference between the following declarations : String s="hello"; String s=new String("hello"); Is there any difference between the Storing of this two strings by JVM ? ...
I'm having some problems writing data into a file using Perl. sub startNewOrder{ my $name = makeUniqueFileName(); open (ORDER, ">$name.txt") or die "can't open file: $!\n"; format ORDER_TOP = PRODUCT<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<CODE<<<<<<<<AANTAL<<<<EENHEIDSPRIJS<<<<<<TOTAAL<<<<<<< . format ORDER = @<<...