advanced java

Java Regex, also known as Regular Expression, is a powerful tool used for manipulating and managing strings. It consists of a sequence of characters that form a pattern, which can be used to match and locate specific strings within a larger text. In Java, regular expression functionality is provided through the java.util.regex package, which includes…

synchronized void method() {} public class SynchronizedInstanceMethodExample implements Runnable { public static void main(String[] args) { SynchronizedInstanceMethodExample runnable = new SynchronizedInstanceMethodExample(); new Thread(runnable).start(); // creates one thread new Thread(runnable).start(); // creates second thread } // Inherited run method from the Runnable interface @Override public void run() { try { // Calling the non-synchronized method print()…

public class GenericClass <T> GenericClass<Type> obj = new GenericClass<Type>(); List<String> list = new ArrayList<>(); Map<Integer, String> map = new HashMap<>(); Set<String> set = new HashSet<>(); public class Test <T> { private T data; public Test(T data) { this.data = data; } public static void main(String[] args) { Test<Integer> test1 = new Test<>(10); Test<String> test2 =…

public class TestMultithreading extends Thread { public void run() { System.out.println(“The thread is running…”); } public static void main(String args[]) { TestMultithreading test = new TestMultithreading(); test.start(); } } Output: The thread is running…   Get the id and name of a thread public class TestMultithreading extends Thread { public void run() { System.out.println(“ID: “…

import java.io.Serializable; public class User implements Serializable { transient int userId; String name; public User(int userId, String name) { this.userId = userId; this.name = name; } } import java.io.* public class Test { public static void main(String args[]) { try { User user1 = new User(15, “Ryan”); //Write the object in a stream FileOutputStream outputStream…

In this tutorial, we will cover the basics of serialization and deserialization, including the importance of the ObjectOutputStream and ObjectInputStream classes, the use of the transient keyword, and the implementation of custom serialization methods. We’ll also provide code examples and address some common questions about these concepts. Let’s get started! What are Serialization and Deserialization…

public void printData(int data) { System.out.println(data); printData(data); } public static void printData(int data) { if (data > 0) { System.out.println(data); printData(–data); } } Output: 5 4 3 2 1 public class Test { public static void main(String[] args) { System.out.println(factorial(5)); } static int factorial(int num) { if (num == 1) { return 1; } else…