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14 Posted Topics
 | I'm working on a static method that I want to use to query mysql; I'd like the option of handing a char in but I'm only seeing string or int, what if I want to use a wildcard? '_' or an int '1', anyone have a clever solution?  |
| | I'm still getting my feet wet with Java and I'm not familiar with all the custom libraries that exist; is anyone familiar with a library for working with multiple sheets of a Excel workbook? I need to pull data from a specific worksheet in the book to work with.  |
| | I'm just curious about the use of frames/panels etc. What's are your general practices and why? Single main JFrame with multiple internal then toggling visibility of panels within? Just starting with swing and rather curious how other people implement them. |
| | CREATE OR replace FUNCTION fn_findraise (dept_in IN VARCHAR2, salary_in IN FLOAT) RETURN NUMBER IS salaryraise NUMBER; BEGIN IF dept_in = 'MIS' THEN salaryraise := salary_in * .10; ELSIF dept_in = 'SALES' THEN salaryraise := salary_in * .15; ELSIF dept_in = 'HR' THEN salaryraise := salary_in * .20; END IF; RETURN …  |
| | Still playing with multi-threading and Prod-Con, at this point I've been at this for days. Would love some help debugging; thanks in advance. http://pastebin.com/jhHB9kTY - Main http://pastebin.com/BZSspf3x - Consumer http://pastebin.com/ndzAADJz - Producer http://pastebin.com/p7YdzH1D - Product http://pastebin.com/rxs3WzDT - Message http://pastebin.com/JR5ywgz1 - Utiliy 2 Producers, 4 Consumers Essentially Producers push a message … |
| | I see this example frequently and thought I'd give it a shot but I've got something unexpected happening with my Queue. I have multiple threads utilizing my producer class but the output doesn't show that it is being written to by each thread. protected Queue<ProductMessage> prodQueue = new ConcurrentLinkedQueue<>(); @Override …  |
| | Working with polymorphism collections, list, arraylists etc. I have a sorted collection that I would like to split based on one of the objects properties. All records > 0 to one; all less than to another. I'm trying to think of the best way to implement this. I'm thinking Comparable/Comparator … |
| | I'm attempting to use the ObjectOutput/InputStream to write data to a file; I'm fairly certain I've got the out portion but coming back in isnt working as it should, thoughts? public static void writePersistant(ArrayList<PersistantObject> persistantRecords) { try { ObjectOutputStream oos = new ObjectOutputStream(new FileOutputStream("dataout/population-record.ser")); for (PersistantObject i : persistantRecords) { …  |
| | So I'm parsing a CSV and trying to create a new object from each record. Using BufferedReader != null runs thru the file just fine. Now I use string.split method to put each line into an array. Ideas on how to use the values in the array to create the … |
| | I have a private ArrayList in a class and I'd like to be able to access it outside of this class, what would be the proper way to do this? Right now I've just made the ArrayList public but I would like to allow it to be private. Should I … |
| | I'm using a loop to get user input and compare it; Idk why but on the first iteration of the while it works fine and displays only once. Second run thru I get two prompts, hoping someone can point out where I'm screwing up. public static void main(String[] args) { … |
| | Using strings [CODE] #include <iostream> #include <string> using namespace std; string replaceSubstring(string, string, string); int main() { string string1 = "the dog jumped over the fence", string2 = "the", string3 = "that", newString; cout << "This program will replace a keyword in a sentence with another word.\n\n\n"; cout << "Our … |
| | I figured this would be easy but ultimately I can't seem to get past the " " in a char array. i.e. [CODE] const int ARRAY_SIZE = 80; char charArray[ARRAY_SIZE]; cout << "input a sentence"; cin >> charArray; [/CODE] "This is a test string" returns only "This" as the space … |
| | OK, so I want to create a function getStrRegion(commented out at the bottom) to pass a str value N, S, E, W, C back to the main function so I can then drop it and regionSelect back into getNumAccidents. I'm not exactly sure how to pass a string of characters … |
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