package lambda.ex3;
import lambda.ex2.StringFunction;
import java.util.LinkedList;
import java.util.List;
import java.util.function.Function;
import java.util.function.UnaryOperator;
public class MapExample {
// ê³ ì°¨ 함수, 함수를 ì¸ìžë¡œ 받아, ë¦¬ìŠ¤íŠ¸ì˜ ê° ìš”ì†Œë¥¼ 반환
public static List map(List list, UnaryOperator func){
List str = new LinkedList<>();
for (String s : list) {
str.add(func.apply(s));
}
return str;
}
public static void main(String[] args){
List words = List.of("hello", "java", "lambda");
System.out.println("ì›ë³¸ 리스트 : " + words);
UnaryOperator func1 = (s) -> s.toUpperCase();
UnaryOperator func2 = (s) -> "***"+s+"***";
List map = map(words, func1);
System.out.println(map.toString());
map = map(words, func2);
System.out.println(map.toString());
}
}