If this class is only a utility class, you should make the class final and define a private constructor: This prevents the default parameter-less constructor from being used elsewhere in your code. Additionally, you can make the class final, so that it can’t be extended in subclasses, which is a best practice for utility classes. … Read more
I’m pretty sure the classpath and the shared library search path have little to do with each other. According to The JNI Book (which admittedly is old), on Windows if you do not use the java.library.path system property, the DLL needs to be in the current working directory or in a directory listed in the Windows PATH environment variable. Update: Looks … Read more
Explanation: The outer for loop should be clear; it is executed n times. Now to the inner loop. In the inner loop, you take n and always divide it by 2. So, you ask yourself: How many times can I divide n by 2? It turns out that this is O (log n). In fact, the base of log is 2, but in Big-O notation, we remove … Read more
It’s also possible that the specific issue you’re having isn’t a FileNotFoundException. By using the “Exception” in a catch block (which is the parent class to all Exceptions) this is effectively a “catch all”, since it will run if there is an `Exception or any of its subclasses thrown. Try the following change: This will … Read more
I don’t know what you want to do, but this is how I actually translated your example code…. Alternatively, you can create a getter method for text. You can now do Strings.STRING_ONE.toString();
There are 2 issues in your program: You use the port 80 which is part of the well-known ports or system ports (0 to 1023), so you need to launch your server with the admin rights or change it for 8080 for example. You forgot to call bw.newLine() after each bw.write(sendMessage) such that it waits for ever since on the other side you call br.readLine() which means that it … Read more
When you use a string literal the string can be interned, but when you use new String(“…”) you get a new string object. In this example both string literals refer the same object: Here, 2 different objects are created and they have different references: In general, you should use the string literal notation when possible. It is easier … Read more
try this open source projects that might help you https://github.com/QuadFlask/colorpicker
1) SortedLinkedList extends BasicLinkedList but both have this is wrong. If you want to inherit those field in the sub class, you should mark the variables as protected in the super class and remove them from the subclass. 2) Same goes for private class Node. You are declaring the Node class in both the SortedLinkedList and BasicLinkedList. What you should do is declare … Read more