백준 알고리즘 풀이(1157번)

public static void main(String[] args) {
    String str = "baekjoon";

    // Java 7
    StringBuffer sb = new StringBuffer();
    for(int i = 97 ; i <= 122 ; i++){
        sb.append(str.indexOf(String.valueOf((char)i))).append(" ");
    }
    System.out.println(sb.toString().trim());

    // Java 8
    StringBuffer sb2 = new StringBuffer();
    IntStream.rangeClosed(97, 122).forEach(n ->{
        sb2.append(str.indexOf(String.valueOf((char) n))).append(" ");
    });
    System.out.println(sb2);
}