Collections Class methods and its usages

import java.util.*; public class Main {public static void main(String[] args) {// sort(List list)List numbers = new ArrayList<>(Arrays.asList(3, 1, 4, 1, 5, 9, 2, 6, 5));Collections.sort(numbers);System.out.println("Sorted list: " + numbers); // reverse(List<T> list) List<String> names = new ArrayList<>(Arrays.asList("Alice", "Bob", "Charlie", "David")); Collections.reverse(names); System.out.println("Reversed list: " + names); // shuffle(List<?> list) List<Integer> shuffledNumbers = new ArrayList<>(Arrays.asList(1, 2,...

Interview questions you must go through before java interview

How to move all 0s to the beginning and all 1s to the end of an array? Why is the main method in Java static? How do classes load in Java? What is the classpath and how does it differ from the system PATH? How many types of class loaders are there in Java? How...

JAVA Memory management

Java memory management is handled by the Java Virtual Machine (JVM) and includes processes such as garbage collection, JVM tuning, and identifying memory leaks. Let's take a closer look at each of these topics: Garbage Collection (GC): Java uses automatic garbage collection to manage memory. It tracks objects created by the program and periodically identifies...

A Simple Remember Me Flow

A Simple Remember Me Flow using springboot

how ValueOf() can be used in java

The `valueOf()` method is a static method defined in several classes in Java, including `String`, `Integer`, `Double`, and others. It is used to convert a value of a specific type to an object representation of that type. The return type of the `valueOf()` method is typically the corresponding class itself. Here are a few examples...