Javaでstreamのmapの練習

import java.util.*;
import java.util.stream.*;

public class Main {
    public static void main(String[] args) throws Exception {
        List<String> fruits = Arrays.asList(
            "apple", "kiwi fruit", "strawberry", "orange"
        );
        
        var fruitsUpperCase = fruits.stream()
                .map(e -> e.toUpperCase())
                .collect(Collectors.toList());

        p(fruits);
        p(fruitsUpperCase);
    }
    
    public static <T> void p(T a) {
        System.out.println(a);
    }
}

import java.util.*;

import java.util.stream.*;

public class Main {

public static void main(String[] args) throws Exception {

List<String> fruits = Arrays.asList(

"apple", "kiwi fruit", "strawberry", "orange"

);

var fruitsUpperCase = fruits.stream()

.map(e -> e.toUpperCase())

.collect(Collectors.toList());

p(fruits);

p(fruitsUpperCase);

}

public static <T> void p(T a) {

System.out.println(a);

}

[apple, kiwi fruit, strawberry, orange]
[APPLE, KIWI FRUIT, STRAWBERRY, ORANGE]

1 2	[apple, kiwi fruit, strawberry, orange] [APPLE, KIWI FRUIT, STRAWBERRY, ORANGE]

2023年 3月の投稿一覧

Javaでstreamのmapの練習

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