[Solved] add drag & drop to traditional file input? [closed]

After a LOT of research, I’ve found that this is an impossibility, as the FILE input type is read-only to javascript, in modern browsers, for security reasons. Because of this limitation, AJAX-style requests are the ONLY way to perform drag-and-drop uploads. solved add drag & drop to traditional file input? [closed]

[Solved] How to traverse java maze using stacks

First of all, you should be initializing your mazePoints array with the static ints you declared: public static char[][] mazePoints = new char[mazeHeight][mazeWidth]; But you’ll need to mark them static first: private static final int mazeHeight = 12; private static final int mazeWidth = 58; If they aren’t meant to be static, then neither should … Read more

[Solved] How to filter using LINQ? [closed]

Displaying processDate from dataItem2 does not require LINQ… Just user standard dot notation. If this does not answer your question please post the relevant code. Proper way: dataItem2.ProcessDate On the other hand if you have a collection of DataItem objects like below: List<DataItem> items = PopulateMyItems(); then you can filter like so: items.Where(t=>t.ProcessDate > TwoWeeksAgo); … Read more

[Solved] Some prompt() comment exercises [closed]

This should do the trick: (function(show, askFor){ var first = +askFor(“The first number:”), +second = askFor(“The second number:”); show([ “You entered:”, first, “and”, second, “Sum:”, first+second ].join(” “)); })(alert, prompt); (function(show, askFor){ var first = +askFor(“The first number:”), second = +askFor(“The second number:”); show([ “You entered:”, first, “and”, second, “Sum:”, first + second, “Difference:”, first … Read more

[Solved] Update javascript array

If you want to access the topmost array, you can push or popor a number of other native array methods. You can access the inner arrays by index (array[0] for example), and then use regular array methods on the inner arrays. You can read more about arrays and their methods here To answer your two … Read more

[Solved] Optimizing a while loop in Java

Your code is pretty fast (O(n)), but this problem can be solved in constant time (O(1)), since it is just based on the condition of the intersection of two lines being an integer. static String kangaroo(int k1, int v1, int k2, int v2) { float x = (k2 – k1)/(v1 – v2); if(x == (int) … Read more

[Solved] cin using char type array

#include <iostream> #include <conio.h> #include <iomanip> using namespace std; int main(){ int age , years ; char name[20]; cout <<“Enter your age in years: “<< endl; cin >> years; cout <<“Enter your name in years: ” <<endl; cin >> name; age = years*12; cout << ” Your age in months is: ” << age <<endl; … Read more

[Solved] How to parse this type of json array in android?

Try this. try { JSONObject jsonObject = new JSONObject(“JSONResponse”); String scode = jsonObject.optString(“scode”); JSONArray allmenuArray = jsonObject.optJSONArray(“all_menu”); for (int i = 0; i < allmenuArray.length(); i++) { JSONObject objectJson = allmenuArray.optJSONObject(i); boolean sub_menu = objectJson.getBoolean(“sub_menu”); String app_menu_id = objectJson.getString(“app_menu_id”); String app_menu_name = objectJson.getString(“app_menu_name”); JSONArray all_sub_menu = objectJson.getJSONArray(“all_sub_menu”); for (int j = 0; j < all_sub_menu.length(); … Read more

[Solved] move file based on the less than max system modified date available

I don’t know if you were aware, but the other step you tried was powershell.exe code not cmd.exe. Something similar to this may do what you require: @Echo Off Set “dirSrc=C:\App\Folder1” Set “dirDst=C:\App\Folder2” Set “extSrc=*.txt” If Exist “%dirSrc%\%extSrc%” (CD /D “%dirSrc%” 2>Nul || Exit /B ) Else Exit /B If Not Exist “%dirDst%\” (MD “%dirDst%” … Read more

[Solved] how to apply a function on a data set?

I’m at least not quite sure whether I understood correct. Maybe a better question could improve the answers… DF <- data.frame(Tree = c(4382, 4383, 4384, 5385, 4386), a = c(21.88, 13.93, 19.69, 20.02, 11.07), b = c(9.59, 12.95, 9.78, 8.23, 23.20), k = c(0.0538, 0.0811, 0.0597, 0.0489, 0.1276)) DOY <- c(1:365) DF_new <- data.frame(sapply(1:length(DF$Tree), function(x)(DF$a[x]*exp(-exp(DF$b[x]-DF$k[x]*DOY))))) … Read more