I have the following two tables that record expenditure and provide expenditure category information: Table transactions: +-------+--------+--------+ | month | cat_id | amount | +-------+--------+--------+ | 1 | 2 | 3 | | 1 | 2 | 8 | | 2 | 1 | 7 | | 2 | 1 | 5 | +-------+--------+-...
pseudo code to explain my self better. I'm learning Java at this point in time. if I have a method public resultSet getEverything() { resultSet rs = blabla; return rs } I can't rs.close() as I need to use it in the method I retrieve it hence then I will use it, and maybe 'close' the new resultSet I create. What happ...
Why does this code produce the warning? FILE* my_open_file(char* filename) { FILE* fp=fopen(filename,"r"); if(fp==NULL) { perror("Error opening file"); return -1; } return fp; } asdf.c: In function ‘my_open_file’: asdf.c:9: warning: return makes pointer from integer without a cast fp is already a pointer, ...
When I'm retrieving image from the sqlite database my Bitmap object bm return null value can any one help me..? I found problem in my database.. When I store the byte array in blob data type in database table that time the size of the byte array was 2280.. But when i retrieved that blob data type using select query I get the byte arra...
I have a Java class that extends Thread, it basically looks like the following: public class HttpRequestDispatcher extends Thread { private String url; private String method; // GET or POST private byte[] postData; public HttpRequestDispatcher(String url, String method, byte[] postData) { this.url = url; ...
Given this code: String test() { try { return "1"; } finally { return "2"; } } Do the language specifications define the return value of a call to test()? In other words: Is it always the same in every JVM? In the Sun JVM the return value is 2, but I want to be sure, that this is not VM-dependant. ...
I want the process running to exec. When the command exec runs finishes, I want the process that called the process calling exec to recieve as a return value the value that the function called by exec returned. How is this possible? I'm sorry. I understand the process is a bit confusing. So let me give an example I am in a bash script...
I'm trying to use Ruby 1.9.1 for an embedded scripting language, so that "end-user" code gets written in a Ruby block. One issue with this is that I'd like the users to be able to use the 'return' keyword in the blocks, so they don't need to worry about implicit return values. With this in mind, this is the kind of thing I'd like to be...
I'm trying to migrate from using inline event triggers to using event listeners using Prototype's Event.observe function. There are a few inline commands that I don't know how to handle using the function call. I want to move from: <form id='formFoo' action='whatever.php' onsubmit="return Foo.verify(this);"> To an event call: Event....
I am having a really peculiar case. I want to return some data - data that is downloaded via ajax. So far async & sync modes don't get the data in time to the return. Is it possible I could either call return from a child function for the parent function or could a timeOut solve the issue? I can't think of another way of doing this, but ...
Hi, I've got a javascript function that draws a dialog. I'd like to have it return the value the user specifies. The problem is, the dialog is closed when a user clicks on of two buttons, which have onClick events assigned to them. The only way I know to grab these events is by assigning functions to them, which means that a return ca...
I have seen some developers use the return statement in a catch block. Why/when would this be a useful technique to employ? EDIT: I actually just saw the return keyword being used. Thanks ...
If I have for example a class with instance method and variables class Foo { ... int x; int bar() { return x++; } }; Is the behavior of returning a post-incremented variable defined? ...
I recently asked the question http://stackoverflow.com/questions/2380803/is-the-behavior-of-return-x-defined The result was about what I expected, but got me thinking about a similar situation. If I were to write class Foo { ... int x; int& bar() { return x++; } }; Where bar now returns an int reference, is this behav...
Consider I have the following interface: public interface A { public void b(); } However I want each of the classes that implement it to have a different return type for the method b(). Examples: public class C { public C b() {} } public class D { public D b() {} } How would I define my interface so that this was possibl...
Hello, I would like to know if there is any way to return an char array. I tried something like this "char[] fun()" but I am getting error. I don't want a pointer solution. Thanks! ...
here is the relevent code snippet: public static Rand searchCount (int[] x) { int a ; int b ; int c ; int d ; int f ; int g ; int h ; int i ; int j ; Rand countA = new Rand () ; for (int l= 0; l<x.length; l++) { if (x[l] = 0) a++ ; els...
Solution found - in under 5 minutes, thanks folks! Clarification: The contents of my array are the values 0-29. So array[0][0] = 0, while array[29][0] = 29 --- they're just test values. Also, I have a potential solution that's been posted multiple times, going to try that. Recursive Solution: Not working! Explanation: An integer, ti...
I have a Ruby method that searches an array of hashes and returns a subset of that array. def last_actions(type = 'all') actions = @actions if type == 'run' actions = actions.select {|a| a['type'] == "run" } end return actions end This works, except when there is only one action to return, in which case I ...
Hey there, I never seem to get this right. I've got a method that returns a mutable array. What is the proper way to return the array and avoid potential memory leaks? If I plan to store the results locally inside another view controller, does that affect the way the array should be returned? Lastly, what if it's just an non-mutable...