[백준알고리즘] 5622번 다이얼 자바(JAVA)

  

 

  

 

 

소스 코드

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;

public class Main {
 
    public static void main(String[] args) throws IOException {
    	BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
    	BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(System.out));
    	String input = br.readLine();
    	br.close();
    	
    	int sum = 0;
    	for(int i=0; i<input.length(); i++) {
    		char ch = input.charAt(i);
    		if(ch == '0') {
    			sum += 11;
    		} else if (ch == '1') {
    			sum += 2;
    		} else {
    			sum += getNum(ch) + 1;
    		}
    	}
    	bw.write(sum + "\n");
    	bw.flush();
    	bw.close();
    }
    
    public static int getNum(char ch) {
    	int number = 0;
    	switch (ch) {
		case 'A':
		case 'B':
		case 'C':
			number = 2;
			break;
		case 'D':
		case 'E':
		case 'F':
			number = 3;
			break;
		case 'G':
		case 'H':
		case 'I':
			number = 4;
			break;
		case 'J':
		case 'K':
		case 'L':
			number = 5;
			break;
		case 'M':
		case 'N':
		case 'O':
			number = 6;
			break;
		case 'P':
		case 'Q':
		case 'R':
		case 'S':
			number = 7;
			break;
		case 'T':
		case 'U':
		case 'V':
			number = 8;
			break;
		case 'W':		
		case 'X':
		case 'Y':
		case 'Z':
			number = 9;
			break;
		default:
			break;
		}
    	return number;
    }
}

 

 

출력 결과