Suranchiyev

import java.time.LocalDate;

public class Main {
    public static void main(String[] args) {
        String str = "2016-03-26";
        LocalDate date = LocalDate.parse(str);
        // if format of string is default date format,
        // we can convert in one step.

        System.out.println(date); // 2016-03-26

Suranchiyev

import java.time.LocalDate;
import java.time.Month;
import java.time.format.DateTimeFormatter;

public class Main {
    public static void main(String[] args) {
        LocalDate date = LocalDate.of(2018, Month.MAY, 26);
        System.out.println(date); // 2018-05-26

        DateTimeFormatter f = DateTimeFormatter.ofPattern("dd MMM, YYYY");

Suranchiyev

import java.time.LocalDate;
import java.time.Month;

public class Main {
    public static void main(String[] args) {
        LocalDate date = LocalDate.of(2018, Month.MAY, 26);
        System.out.println(date); // 2018-05-26

        date = date.plusYears(2);
        System.out.println(date); // 2020-05-26

Suranchiyev

import java.time.LocalDate;
import java.time.Month;

public class Main {
    public static void main(String[] args) {
        LocalDate date = LocalDate.of(2018, Month.MAY, 26);
        System.out.println(date); // 2018-05-26

        System.out.println("Year: " + date.getYear()); // Year: 2018
        System.out.println("Month: " + date.getMonth()); // Month: MAY

Suranchiyev

import java.time.LocalDate;
import java.time.Month;

public class Main {
    public static void main(String[] args) {
        LocalDate date = LocalDate.of(2018, 5, 26);
        System.out.println(date); // 2018-05-26

        // or

Suranchiyev

import java.time.LocalDate;

public class Main {
    public static void main(String[] args) {
        LocalDate date = LocalDate.now();
        System.out.println(date); // 2021-08-16(current date)
    }
}

Suranchiyev

import java.util.*;

public class Main {
    public static void main(String[] args) {
        //    K   ,  V
        Map<String, Double> fruit = new HashMap<>();
        fruit.put("Orange", 1.05);
        fruit.put("Mango", 0.50);
        fruit.put("Apple", 0.76);
        fruit.put("Lemon", 1.47);

Suranchiyev

import java.util.LinkedList;
import java.util.Queue;
import java.util.Stack;

public class Main {
    public static void main(String[] args) {
        // Queue - FIFO (First In, First Out)
        // LinkedList is one of the Queue implementations as well
        Queue<String> queueInStore = new LinkedList<>();
        queueInStore.add("Alex");

Suranchiyev

import java.util.*;

public class Main {
    public static void main(String[] args) {
        Set<String> cars = new HashSet<>();
        cars.add("honda");
        cars.add("audi");
        cars.add("bmw");
        cars.add("tesla");
        cars.add("bmw");

Suranchiyev

import java.util.List;
import java.util.ArrayList;

public class Main {
    public static void main(String[] args) {
        // create list of String
        List<String> cars = new ArrayList<>();
        
        // add elements to back of the list
        cars.add("bmw");