akshanshjain95

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Optional;
import java.util.stream.Collectors;
import java.util.stream.Stream;

public class ListOfMapToMap {

akshanshjain95

import java.util.HashMap;
import java.util.Map;
import java.util.stream.Collectors;
import java.util.stream.Stream;

public class MergeTwoMaps {

    public static void main(String[] args) {
        Map<String, Long> map = new HashMap<>();

akshanshjain95

import java.util.concurrent.locks.ReentrantLock;

public class ReentrantLockInterruptiblyDemo {

    private static ReentrantLock reentrantLock = new ReentrantLock();

    public static void main(String[] args) throws InterruptedException {

        ReentrantLockInterruptiblyDemo reentrantLockDemo = new ReentrantLockInterruptiblyDemo();

akshanshjain95

import java.util.concurrent.locks.ReentrantLock;

public class ReentrantLockFairnessDemo {

    private static ReentrantLock reentrantLock = new ReentrantLock(true);

    public static void main(String[] args) throws InterruptedException {

        ReentrantLockFairnessDemo reentrantLockDemo = new ReentrantLockFairnessDemo();

akshanshjain95

import java.util.concurrent.locks.ReentrantLock;

public class ReentrantLockDemo {

    private static ReentrantLock reentrantLock = new ReentrantLock();

    public static void main(String[] args) throws InterruptedException {

        ReentrantLockDemo reentrantLockDemo = new ReentrantLockDemo();

akshanshjain95

import java.util.concurrent.CountDownLatch;

public class CountDownLatchDemo {

    private static final CountDownLatch COUNT_DOWN_LATCH = new CountDownLatch(5);

    public static void main(String[] args) {
        Thread run1 = new Thread(() -> {
            System.out.println("Doing some work..");

akshanshjain95

import lombok.Builder;

public final class Student extends Person {

    private final String rollNumber;

    @Builder(builderMethodName = "studentBuilder")
    public Student(final String firstName, final String lastName, final String middleName, final String rollNumber) {
        super(firstName, lastName, middleName);
        this.rollNumber = rollNumber;

akshanshjain95

import lombok.Builder;

@Builder
public final class Student extends Person {

    private final String rollNumber;
}

akshanshjain95

import lombok.Builder;

@Builder
public class Person {

    private final String firstName;
    private final String lastName;
    private final String middleName;
}

akshanshjain95

public class ThreadConfinementUsingThreadLocal {

    public static void main(String[] args) {
        ThreadLocal<String> stringHolder = new ThreadLocal<>();

        Runnable runnable1 = () -> {
            stringHolder.set("Thread in runnable1");
            try {
                Thread.sleep(5000);
                System.out.println(stringHolder.get());