Keep a state in a boolean after the button is pressed once and then check if the button is pressed again within the next two seconds or so. If it is pressed again, perform whatever action you like. 2 solved Detecting Double Clicks not only for the mouse but for every key [closed]
As mentioned by πάνταῥεῖ in a comment, it seems that you’ve a few misconceptions regarding scope of variables, about parameters and about return values. Let’s see if we can’t dispel some of those. First of all, lets talk about scope. When we declare a variable inside a block delimited with { and }, the variable … Read more
It’s pretty much the compressed format of JSONArray, I’ve seen it few times, some systems use it to lower the amount of data that gets transferred. You can try something like this (edit how you need it, as this is only a basic concept): // Let us assume your JSON is loaded in jsonString variable … Read more
Let’s construct our number that doesn’t have three consecutive ones from left to right. It necessarily starts with at most two 1s, so it starts with either no 1s, a single 1, or two 1s. In other words, our number starts with either 0, 10 or 110. In all of these cases, the only restriction … Read more
You should visit http://perlmaven.com/ (available in many languages) or http://learn.perl.org/ to learn some Perl first. Your shell script doesn’t need to copy the commandline values. You also used #!usr/bin/bash which won’t work because the path is either /usr/bin/bash or (more common) /bin/bash: #!/bin/bash createviewset ccm -b $1 -t $2 source setenv $2 rest of the … Read more
this.gridViewCastles.SetRowCellValue(rowHandle, column, (object) (bool) (flag2 ? 1 : 0)); What are you trying to do? Flag2 is a boolean. The ?: operator allows you to test a boolean condition to select one of two possible vaules, in your case, 0 and 1. In your code, you try to cast 0/1 to boolean. What is the … Read more
The answer for the first problem: You never defined first_name outside of Players_input. This value is just stored inside the function, and get’s deleted afterwards. (more about this in the link added by gjttt1) There are two ways to solve this: You could make first_name global. But this is a bad style, so I wouldn’t … Read more
List<Integer> data = Arrays.asList(23,6,13); Collections.sort(data); Collections.reverse(data) data = data.sublist(0,2); System.out.println(data); 6 solved Finding the sum of the two greatest numbers of 3 [closed]
you have two mistakes 1- SQL syntax error, correct syntax is $sql = “SELECT id, name, description FROM all_scores WHERE username=””.$username.”””; 2- the variable $username is overwritten by the username of the database try this: $sql = “SELECT id, name, description FROM all_scores WHERE username=””.$_SESSION[“username’].”‘”; 0 solved show results with same username php
Because if you want to assign a supertype to a specific subtype variable, you need to downcast it to the actual type. Much of the Android framework is from an era before Java generics was available. Is there some better way to approach this? If you only need the View from a findViewById() return, make … Read more
Yes you can, why did you think you can’t? But if the value is 0 you can skip the initialization since static variables are automatically initialized to 0. Also, as @M.M commented here it’s mandatory that the value is a constant, you can’t assign the result of malloc() for instance. There is no potential problem, … Read more
Your buffer is likely not being flushed. Try this: while(1){ //… fout.flush(); } 2 solved Why text file created is blank?
Beware that this code, as is, contains errors: bad cast, undefined behavior and platform dependent results… This is pointer arithmetic. w initially points to the content at the address of the first element of t (this is what w = (unsigned short *)&t means). Then, hereafter, you access this memory as containing successives shorts. At … Read more
Use BINARY or VARBINARY to store binary data. string query = “INSERT INTO dbo.MyTable(Content) VALUES(@Content)”; using(SqlConnection connection = new SqlConnection(/*yout connection string here*/)) using(SqlCommand command = new SqlCommand(query, connection)) { connection.Open(); SqlParameter param = command.Parameters.Add(“@Content”, SqlDbType.VarBinary); param.Value = YourByteArrayVariableHere; command.ExecuteNonQuery(); } You could retrieve it by using a SqlDataReader to get data and than cast … Read more
file$Efficiency <- cut(file$Duration, breaks=c(-1,5,15,30,200), labels=c(“Above Par”, “Par”, “Below Par”, “Unacceptable”)) Here is a little example of data from me: x <- c(0,1, 4:6, 14:16, 29:31) y <- cut(x, breaks=c(-1,5,15,30,200), labels=c(“Above Par”, “Par”, “Below Par”, “Unacceptable”)) data.frame(x=x, y=y) 1 solved Explanation for If statement in R