231221 JAVA List03(컬렉션 - list)

package com.sukgi.coll;

 

import java.util.ArrayList;

import java.util.List;

 

public class List03 {

public static void main(String[] args) {

 

List<Integer> list = new ArrayList();

list.add(1);

//list.add("홍길동");

 

for (int i = 0; i < list.size(); i++) {

int number = (int) list.get(i);

System.out.println(number);

}

int number = (int) list.get(0);

}

}

 

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