7/24 복습

for each문 돌아가는거 알기

String[] name = {"KIM","JACK","LEE","DACUYA"};

 for( String Nm : name )

 {

System.out.println("name is "+Nm );

 }

결과값

name is KIM

name is JACK

name is LEE

name is DACUYA

LinkedList ctrl space

get,add,remove,set 사용법과 결과 알기

package pack;
 
import java.util.LinkedList;
 
public class Hello {
    public static void main(String[] args){
        LinkedList<Integer> li = new LinkedList<Integer>();
        System.out.println(li.size());
        System.out.println(li+" ");
        for (int i = 0; i < 10; i++) {
            li.add(i*10);
        }
        li.add(3,777);
        li.remove(1);
        System.out.println(li.size());
        System.out.println(li);
        for(Integer a : li)
        {
            System.out.println(a+" ");
        }
    }
 
}

package pack;
 
import java.util.LinkedList;
 
public class Hello {
    public static void main(String[] args){
        LinkedList<Integer> li = new LinkedList<Integer>();
        for (int i = 0; i < 10; i++) {
            li.add(i*10);
        }
        System.out.println(li.size());
        /*System.out.println(li+" ");
        li.add(3,777);
        li.remove(1);
        System.out.println(li.size());
        System.out.println(li);
        for(Integer a : li)
        {
            System.out.println(a+" ");
        }*/
        for (int i = 0; i < li.size(); i++) {
            int num = li.get(i);
            if(num==777) {
                li.remove(i);
                break;
            }
        }
        System.out.println(li+" ");
    }
 
}