#14 Method Reference를 이용해 기존 예제를 더 간단하게

@FunctionalInterface
public interface Supplier<T> {
	T get(); // input 없이 return 값만 가지는 함수
}

package com.fastcampus.functionalprogramming.chapter5;

import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.function.Supplier;

public class Chapter5Section4 {
	public static void main(String[] args) {
		// 1.
		printRandomDoubles(Math::random ,5);
		
		// 2.
		List<String> names = new ArrayList<>();
		names.add("Bob");
		names.add("Charlie");
		names.add("Alice");
		System.out.println(names);
		
		Collections.sort(names, String::compareTo);
		System.out.println(names);
	}
	
	public static void printRandomDoubles(Supplier<Double> randomSupplier, int count) {
		for (int i = 0; i < count; i++) {
			System.out.println(randomSupplier.get());
		}
	}
}