java

Hello. I want to write the right code, so I wondered. After all, where is it better to store constants in Java? Now I pick t ... hy this was done? How they work protected/private interface and where is it better to store constants? Thank you in advance.

What does "@Override" mean before declaring a method?

I solve Olympiad problems of this kind in java. I wrote the algorithm for solving the problem. There was a problem with how t ... il it counts 10,000 characters, the program will not continue working. How do you recommend solving this problem? a problem?

There is a simple program in which I read information from a file, using FileInputStream. The file is located in the root dir ... e the following construction: FileInputStream fin = new FileInputStream("input.txt"); Thank you in advance for your reply)

On the site with documentation for Dagger 2, there is the following example code and words: class CoffeeMaker { @Inject He ... In case the Heater object has not been created before? And if this is its object is it currently being used by another class?

The task is given: Create a static printMagazines(Printable[] printable) method in the Magazine class that outputs only the n ... java.lang.ArrayIndexOutOfBoundsException: Index 3 out of bounds for length 3 at Main.main(Main.java:19) Thank you in advance!

Please tell me, was there such a code in the Java project before private static Queries q; private static SQLiteDatabase db; ... tion(), and can I call it as before in Java classes with this method? q = App.getQueriesInstance(getApplicationContext());

The emulator does not start through Android studio, neither through AVD Manager, nor through the launch of the application H ... talling Windows and installing Android Studio on a new Windows, this is what happened. I will be very grateful for your help!

I am trying to perform the usual Hello, World, as it is said in one of the manuals. class HelloWorld { public static ... \bin>java HelloWorld Error: Could not find or load main class HelloWorld C:\Program Files\Java\jdk1.7.0_07\bin>

You need to use a function that is located in a certain jar. There are no source codes. But at the same time, I do not want to increase my program by a couple of MB for the sake of one function. Is it possible to solve this problem somehow?

I wrote Auto tests in Java using the Selenid library right now I want to create a Bat file to run these tests not through the Intellij program but through this file

How can I use the mass of objects (native, non-native)?String, Integer and so on) copy it to another array along with copies ... num + " " + massiv2[1].num + " " + massiv2[2].num); } } class Mas { int num; } Conclusion: 1 2 3 1 2 3 4 2 3 4 2 3

How can we open a file or folder, as if we are opening it through a standard file browser / Finder / etc.

Hi) I know Python well, and as soon as I realized that I wanted to try to make my own application, I decided to study this to ... it, in others they just download it and that's it, without any Java. Are there any people familiar with this? Please help me.

When executing code from the tutorial: static{ System.loadLibrary(Core.NATIVE_LIBRARY_NAME); } public static void main ... quite clear what to do. Download the system library named *411, or install an older version of OpenCV that has version 410?

I write in IntelliJ IDEA I copied everything from the site with explanations, but nothing works. I am trying to connect to th ... in.java:22) Process finished with exit code 1 I imported the JBDC driver via File>Project Structure в IntelliJ IDEA

I need to make a server in java that will work with the database and perform other functions. The choice fell on the server b ... to fix it. It is possible to completely change architecture or toolkit. The main thing is that the server is written in Java.

Have a nice day! Please tell me what is the error in this code. An error occurs: the output stream was empty when it was no ... { if ((result = (byte) i) % 2 == 0) { outputStream.write(result); } } } }

Please help me understand : there is a method called printOddNumbers that accepts an array and outputs only odd numbers from ... } System.out.println(stringBuilder); stringBuilder.append(System.getProperty("line.separator")); } Output: 3,5,7,3,

Please tell me how to compare the class name with the specified string( the string is entered by the user). Is there any way to write the class name to a string variable?