It may be at early binding, since polymorphism is used while coding to assign a reference variable to other variable of a a superclass or interface of itself. solved When does polymorphism occur [closed]
You could try dlopen, dlsym, dlerror and dlclose. These allow you to, at runtime, load libraries. Your server could use it to load code which should execute inside a page. Howto, by Aaron Isotton Documentation on man7.org 1 solved Executing code during runtime that cannot be included in the main program
Introduction Executing code during runtime that cannot be included in the main program is a common challenge faced by developers. This can be due to a variety of reasons, such as the code being too large or complex to include in the main program, or the code needing to be updated frequently. Fortunately, there are … Read more
So far so good! I found the answer recently by myself, still don’t have a reason why it works this way, but I suppose it’s all about internal difference of handling new processes in VM’s on different platforms. I had to edit the code this way, and now it works: String[] runcmd = {“java”,”-jar”,”/home/user/jar.jar”}; Runtime.getRuntime().exec(runcmd); … Read more
Don’t override the paint() method. Custom painting is done by overriding the paintComponent() method of a JPanel (or JComponent) and then you add the panel to the applet Don’t invoke repaint() from any painting method. This will cause an infinite loop. Don’t use sleeping code inside a painting method. If you want animation then use … Read more
If you check CompilerResults compres it shows that there’s an exception and the compilation was not successful and hence it’s not writing out Assembly.exe and there is a System.IO.FileNotFound exception from Process.Start() Try this public void compile() { CSharpCodeProvider myCodeProvider = new CSharpCodeProvider(); ICodeCompiler myCodeCompiler = myCodeProvider.CreateCompiler(); string myAssemblyName = @”Assembly.exe”; CompilerParameters myCompilerParameters = new … Read more
Well this will run until EOF is detected. EOF can be ‘inserted’ pressing ctrl+D in Linux terminal. It works OK then. change while ((c = getchar()) != EOF) to while ((c = getchar()) != ‘\n’) and it will only ask you for one line of input and then return the result. btw: main is of … Read more
Java strings are immutable. Every time you do: s+=c; You’re really saying: s = new String(s + c); new String(s + c) must allocate a string of length s + 1, or: 1 2 3 4 5 6 7 8 9 … etc. Since Sum(1..N) == (n + 1) (n / 2), this is O(n^2). … Read more
The API for modifying linked resources is accessed with BeginUpdateResource, UpdateResource and EndUpdateResource. Consult the API documentation on MSDN to learn how to use these functions, and also refer to the example code on MSDN. Including large ZIP file resources in an executable, and frequently modifying them, seems to me like the sort of behaviour … Read more
“Which is better” is always a matter of opinion. In your particular application, is execution time or memory use more of a problem? Then optimize for that aspect. In terms of leetcode, I understand it’s a sort of quiz, but for numbers that small, my response is “who cares?”. I don’t care about an execution-time … Read more
Interesting: Lets deal this in simple way. 1. Save a file test.txt somewhere. 2. Open that file and keep it opened In Java write to this file (Standard Code) FileWriter fw = new FileWriter(new FileOutputStream(new File(“c:/test.txt”))); fw.write(“ABC”) Now go to notepad file again. I normally used Textpad it does refresh automatically (by an alert) because … Read more