agiri23

public static void onShow(Country country) {
        switch (country) {
            case NETHERLANDS, POLAND, GERMANY -> System.out.println("European Country");
            case INDIA, BHUTAN, NEPAL -> System.out.println("Asian Country");
            default -> System.out.println("It's from Wakanda");
        }
    }

agiri23

public static void onShowWithYield(Country country) {
        String output = switch (country) {
            case NETHERLANDS, POLAND, GERMANY -> {
                System.out.println("European Country" + country);
                yield "Country belongs to Europe Continent";
            }
            case INDIA, BHUTAN, NEPAL -> {
                System.out.println("Asian Country" + country);
                yield "Country belongs to Asian Continent";
            }

agiri23

public static void onShowWithReturnValue(Country country) {
        String output = switch (country) {
            case NETHERLANDS, POLAND, GERMANY -> "European Country";
            case INDIA, BHUTAN, NEPAL -> "Asian Country";
            default -> "It's from Wakanda";
        };
        System.out.println(output);
    }

agiri23

record Country(String name,String capital){}

agiri23

public class SampleRecordClass {
    record Country(String name,String capital){}
    public static void main(String[] args) {
        Country firstCountry = new Country("Netherlands","Amsterdam");
        Country secondCountry = new Country("Germany","Berlin");
        System.out.println("First country object is " + firstCountry);
        System.out.println("Second country object is " + secondCountry);
        System.out.println("Check if both objects equal" + firstCountry.equals(secondCountry));
        // Copying object using attribute method of existing records object
        Country countryClone = new Country(firstCountry.name,firstCountry.capital);

agiri23

private static void patternMatchingInstanceOf() {
        Object o = new CountryData("Netherlands","Amsterdam","Europe");
        if (o instanceof CountryData countryData) {
            System.out.println("This capital of Netherlands is " + countryData.capital());
        }
    }

agiri23

private static void patternMatchingInstanceOfScope() {
        Object o = new CountryData("Netherlands","Amsterdam","Europe");
        if (o instanceof CountryData countryData && countryData.continent().equals("Europe")) {
            System.out.println("This continent of Netherlands is " + countryData.continent());
        }
    }

agiri23

NumberFormat numberFormatLong = NumberFormat
                .getCompactNumberInstance(Locale.forLanguageTag("NL"), NumberFormat.Style.LONG);
        System.out.println(numberFormatLong.format(2000));
        System.out.println(numberFormatLong.format(20000));
        System.out.println(numberFormatLong.format(200000));

agiri23

2 duizend
20 duizend
200 duizend

agiri23

 NumberFormat numberFormatShort = NumberFormat
                .getCompactNumberInstance(Locale.forLanguageTag("NL"), NumberFormat.Style.SHORT);
        System.out.println(numberFormatShort.format(2000));
        System.out.println(numberFormatShort.format(20000));
        System.out.println(numberFormatShort.format(200000));