Java 14: Example of records and text blocks

Main.java

package com.kamilachyla.bggen;

import java.awt.*;
import java.util.Arrays;
import java.util.function.BiFunction;
import java.util.function.UnaryOperator;
import java.util.stream.Stream;

public class Main {
    record  HSL(float hue, float saturation, float lightness){
        public static HSL of(float h, float s, float l) {
            return new HSL(h, s, l);
        }

        public Color toColor() {
            return Color.getHSBColor(hue, saturation, lightness);
        }
    }

    static String toHexString(Color c) {
        return String.format("#%s%s%s%s",
                Integer.toHexString(c.getRed()),
                Integer.toHexString(c.getGreen()),
                Integer.toHexString(c.getBlue()),
                Integer.toHexString(c.getAlpha()));
    }
    private static UnaryOperator<HSL> nextHSLBy(float delta) {
        return (t) -> HSL.of(t.hue + delta, t.saturation, t.lightness);
    }

    private static String colorInfo(String name, Color c) {
        return String.format("""
                %s: %s (%s)
                """, name, c, toHexString(c));
    }

    private static String colorJson(String name, Color c) {
        return String.format("""
                {"%s": {"r": %s, "g":%s, "b":%s, "hex":%s}}
                """, name, c.getRed(), c.getGreen(), c.getBlue(), toHexString(c));
    }

    private static void showInfo() {
        System.out.printf("""
            HSL: Is record? %s
            HSL: components: 
        """, HSL.class.isRecord());
        Arrays.stream(HSL.class.getRecordComponents()).forEach(rc ->
                System.out.printf("""
                        Component name: %s,
                        Component type: %s
                        
                        """, rc.getName(), rc.getType()));
    }

    private static void generateColors(BiFunction<String, Color, String> colorFormatter) {
        var count = 20;
        HSL initialColor = HSL.of(0.3f, 0.4f, 0.8f);
        Stream<HSL> colStream = Stream.iterate(initialColor, Main.nextHSLBy(0.04f));
        colStream.limit(count).map(HSL::toColor).map(c -> colorFormatter.apply("color", c)).forEach(System.out::println);
    }

    public static void main(String[] args) {
        generateColors(Main::colorJson);
        showInfo();
    }

}