231221 JAVA List02(컬렉션 - list)

package com.sukgi.coll;

 

import java.util.ArrayList;

 

public class List02 {

 

public static void main(String[] args) {

//문자열 저장하는 list1 만들어주세요.

 

ArrayList<String> list1 = new ArrayList<String>();

 

list1.add("홍길동");

list1.add("김길동");

list1.add("이길동");

list1.add("박길동");

list1.add("최길동");

list1.add("홍길동");

 

 

System.out.println(list1.size());

 

list1.remove("홍길동");

System.out.println(list1.size());

System.out.println(list1);

 

list1.remove("남길동");

System.out.println(list1.size());

System.out.println(list1);

 

 

}

 

}

 

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6

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5

[김길동, 이길동, 박길동, 최길동, 홍길동]

============================================

5

[김길동, 이길동, 박길동, 최길동, 홍길동]