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While trying to compile my program in command prompt I used the command javac and the system is not able to compile that code. The error comes as javac is not a recognized command. What should I do to solve this error?



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While using my JDK I attempted to start my applet, but as I gave the command to execute it, an error occurred saying “application blocked by java security” in a pop up of Java application blocked. How can I resolve this error?



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There are times where your page has fantastic content but have something missing out of it. Do you know that a website’s design matters a lot for SEO ranking and users to search? Yes, and there are at times we have come across poor design structure of a few...

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The biggest deal is not in having a website but making sure it is on point and bringing it to the top in search engine rankings. However, it is not an easy job; knowing what to put and what not in it is a skillful one. The following ten...

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consider: static constexpr unsigned num_points {7810}; std :: array <double, num_points> axis; for (int i = 0; i <num_points; ++ i) {Axis [i] = 180 + 0.1 * i;} The axis is a constant at the class level. I want to avoid initializing it like any other global variable. Can it be done...



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How effective are Python resources (python, I think) in allocating a newly created instance of a class? I have a situation where I have to instantiate a node class millions of times to create a tree structure. Each of the node objects must be compact and contain only a...



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The following error is displayed when I open the create-react-app with npm start. I'm new to React and have had no problem using the command line to create a new app in the last few days. I tried to start npx, start npm, and reinstall npm for the updated version. Compilation...



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I have a list of channels like: List <String> locations = Arrays.asList ("US: 5423", "US: 6321", "CA: 1326", "AU: 5631"); And I want to convert Map <String, List <String >> like this: AU = [5631] CA = [1326] US = [5423, 6321] How can I do that?



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Due to a bug, I just discovered that this code works well with Visual Studio 17 and probably also with other compilers. Now I am curious to know why? #include <iostream> #include <string> std :: string foo () { returns nullptr; }int main () { car s = foo (); std :: cout << s <<...



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I have the chain and the board. Strings have the same number of letters as arrays. I have to divide s to create a list that has the same length as each element. s = ‘Python programming language’ arr = [‘lkjhgf’, ‘zx’, ‘qw’, ‘ertyuiopakk’, ‘foacdhlc’] How can I get my expected result?



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