新・Java入門編9:要素数の取得(size)

import java.util.ArrayList;

public class Main {
    public static void main(String... args) {
        ArrayList<String> fruits = new ArrayList<>();

        fruits.add("apple");
        fruits.add("orange");
        fruits.add("lemon");

        System.out.println();
    }
}

import java.util.ArrayList;

public class Main {
    public static void main(String... args) {
        ArrayList<String> fruits = new ArrayList<>();

        fruits.add("apple");
        fruits.add("orange");
        fruits.add("lemon");

        System.out.println();
    }
}

import java.util.ArrayList;

public class Main {
    public static void main(String... args) {
        ArrayList<String> members = new ArrayList<>();
        members.add("kirishima");
        members.add("midorikawa");
        members.add("rokumura");
        
        System.out.println();
    }
}

import java.util.ArrayList;

public class Main {
    public static void main(String... args) {
        ArrayList<String> members = new ArrayList<>();
        members.add("kirishima");
        members.add("midorikawa");
        members.add("rokumura");
        
        System.out.println();
    }
}

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