[코드업] 기초 100제/ 1001~1011

1001

public class Main{
    public static void main(String[] args){
        System.out.println("Hello");
    }
}

1002

public class Main{
    public static void main(String[] args){
        System.out.println("Hello World");
    }
}

1003

public class Main{
    public static void main(String[] args){
        System.out.printf("Hello\nWorld");
    }
}

1004

public class Main{
    public static void main(String[] args){
        System.out.printf("\'Hello\'");
    }
}

1005

public class Main{
    public static void main(String[] args){
        System.out.printf("\"Hello World\"");
    }
}

1006

public class Main{
    public static void main(String[] args){
        System.out.printf("\"!@#$%%^&*()\"");
    }
}
//"!@#$%^&*()"

1007

public class Main{
    public static void main(String[] args){
        System.out.printf("\"C:\\Download\\hello.cpp\"");
    }
}

1008

public class Main{
    public static void main(String[] args){
        System.out.printf("\u250C\u252C\u2510\n\u251C\u253C\u2524\n\u2514\u2534\u2518");
    }
}

1010

import java.util.Scanner;
public class Main{

    public static void main(String[] args){

        Scanner sc = new Scanner(System.in);

        int n = sc.nextInt();
        System.out.println(n);
    }
}

-> 이클립스에서는 항상 자동완성이 되서 util을 안써서 오류가 발생
-> sc.nextInt 만 쓰고 뒤에 ()쓰지 않아 오류발생
-> 은근 얼렁뚱땅 제대로생각하자

1011

import java.util.Scanner;
public class Main{

    public static void main(String[] args){
        Scanner sc = new Scanner(System.in);
        char a = sc.next().charAt(0);
        //첫번째문자형을 꺼내온다.
        System.out.print(a);
    }


}

-> Scanner에서 문자만 입력받기위해선 charAt(0)해줘야되는걸 왜 몰랐지?
정말 오늘따라 한심.