package java21;

import java21.records.RecordPatternsWithInstanceof;

import java21.virtualthreads.ExecutorImpl;

import java21.virtualthreads.ThreadOfVirtualImpl;

import java.util.Locale;

//import static java.util.FormatProcessor.FMT;

public class Main {

public static void main(String[] args) {

var product = new Product(1L, "Laptop", 1000.0);

// Concatenation using + operator

var string1 = "Product with id " + product.productId() + " is " +

product.name() + " and has price $" + product.price();

System.out.println(string1);

// Concatenation using StringBuilder

var string2 = new StringBuilder()

.append("Product with id ")

.append(product.productId())

.append(" is ")

.append(product.name())

.append(" and has price $")

.append(product.price())

.toString();

System.out.println(string2);

// Concatenation using String.format

var string3 = String.format(Locale.US,

"Product with id %s is %s" +

" and has price $%.2f",

product.productId(), product.name(), product.price());

System.out.println(string3);

//var string4 = FMT."Product is \{product.productId()}: \{product.name()}, priced at $%.2f\{product.price()}";

//System.out.println(string4);

// testing "sequenced collections" feature

CollectionSequences.testCollectionSequences();

// testing "record" with pattern matching in if-construct

RecordPatternsWithInstanceof.test();

// testing Executors.newVirtualThreadPerTaskExecutor

ExecutorImpl.withVirtualThreadsInJava21(); // high performance

//ExecutorImpl.withoutVirtualThreads(); // quite slower

// testing Thread.ofVirtual()

ThreadOfVirtualImpl.main(null);

}

}