Arrays in java:

• An array is the basic Data Structure that contains items of similar data types.
• There is always an ordering amongst the position of the element.
• It can be accessed with the help of the indices. Java supports …

Вот код:

public class Bot {
public static void main(String[] args) throws ClientException, ApiException, InterruptedException {
TransportClient transportClient = new HttpTransportClient();
VkApiClient vk = new VkApiClient(transportClient);
Random random = new Random()…

Добрый день.
Почему работая на С++, нельзя полноценно использовать dll , написанных на C#, java?
И почему используя другие языки, можно использовать dll , написанных на C++?

What is memory Leaks in Android development ?

The application creates objects, they lie in memory and can not clean out after the completion of its work.

Why is this happening ?

Java has its own means of clearing memory …

Как выяснилось в этом обсуждении:

Отправка Email из Android в Qt

для отправки Email в Android необходимо делать Java-метод, который и будет отправлять email. И этот Java-метод надо дергать из C++ окружения.

Начал я его делать (за основу можно взять пример взаимодействи…

I propose to consider several ways to synchronize threads and processes that are most commonly used in Java. They differ in implementation and use cases. We will consider all methods on interesting examples.

Critical section

This method is suitable for …

Example of the design pattern An object pool in the Java programming language.

// ObjectPool Class

public abstract class ObjectPool<T> {
  private long expirationTime;

  private Hashtable<T, Long> locked, unlocked;

  public ObjectPool() {
    expirationTime = 30000; // 30 seconds
    locked = …

In class-based programming, the factory method pattern is a creational pattern that uses factory methods to deal with the problem of creating objects without having to specify the exact class of the object that will be created. This is done …

Example of "Builder" design pattern in Java

/* "Product" */
class Pizza {
    private String dough = "";
    private String sauce = "";
    private String topping = "";

    public void setDough(String dough) {
        this.dough = dough;
    }

    public void setSauce(String …

Abstract Factory classes are often implemented with Factory Methods, but they can also be implemented using Prototype. Abstract Factory might store a set of Prototypes from which to clone and return product objects.

• Factory Method: creation through inheritance.
• Prototype: creation …