입출력과 사칙연산

2557. Hello World

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

1000. A+B

public static void main(String[] args) throws IOException {
    BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
    StringTokenizer st;
    StringBuilder sb = new StringBuilder();
    st = new StringTokenizer(br.readLine(), " ");
    sb.append(Integer.parseInt(st.nextToken()) + Integer.parseInt(st.nextToken()));
    br.close();

    BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(System.out));
    bw.write(String.valueOf(sb));
    bw.close();
}

1001. A-B

public static void main(String[] args) throws IOException {
    BufferedReader br = new BufferedReader(new InputStreamReader(System.in));

    StringTokenizer st;
    StringBuilder sb = new StringBuilder();
    st = new StringTokenizer(br.readLine(), " ");
    sb.append(Integer.parseInt(st.nextToken()) - Integer.parseInt(st.nextToken()));
    br.close();

    BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(System.out));
    bw.write(sb.toString());
    bw.close();
}

10998. A×B

public static void main(String[] args) throws IOException {
    BufferedReader br = new BufferedReader(new InputStreamReader(System.in));

    StringTokenizer st;
    StringBuilder sb = new StringBuilder();
    st = new StringTokenizer(br.readLine(), " ");
    sb.append(Integer.parseInt(st.nextToken()) * Integer.parseInt(st.nextToken()));
    br.close();

    BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(System.out));
    bw.write(sb.toString());
    bw.close();
}

1008. A/B

public static void main(String[] args) throws IOException {
    BufferedReader br = new BufferedReader(new InputStreamReader(System.in));

    StringTokenizer st;
    StringBuilder sb = new StringBuilder();
    st = new StringTokenizer(br.readLine(), " ");
    sb.append(Double.parseDouble(st.nextToken()) / Double.parseDouble(st.nextToken()));
    br.close();

    BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(System.out));
    bw.write(sb.toString());
    bw.close();
}

10869. 사칙연산

public static void main(String[] args) throws IOException {
    BufferedReader br = new BufferedReader(new InputStreamReader(System.in));

    StringTokenizer st;
    StringBuilder sb = new StringBuilder();
    st = new StringTokenizer(br.readLine(), " ");
    int a = Integer.parseInt(st.nextToken());
    int b = Integer.parseInt(st.nextToken());
    sb.append(a + b).append("\n");
    sb.append(a - b).append("\n");;
    sb.append(a * b).append("\n");;
    sb.append(a / b).append("\n");;
    sb.append(a % b).append("\n");;
    br.close();

    BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(System.out));
    bw.write(sb.toString());
    bw.close();
}

10926. ??!

public static void main(String[] args) throws IOException {
    BufferedReader br = new BufferedReader(new InputStreamReader(System.in));

    StringTokenizer st;
    StringBuilder sb = new StringBuilder();
    st = new StringTokenizer(br.readLine(), " ");
    sb.append(st.nextToken()).append("??!");
    br.close();

    BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(System.out));
    bw.write(sb.toString());
    bw.close();
}

18108. 1998년생인 내가 태국에서는 2541년생?!

10430. 나머지

public static void main(String[] args) throws IOException {
    BufferedReader br = new BufferedReader(new InputStreamReader(System.in));

    StringTokenizer st;
    StringBuilder sb = new StringBuilder();
    st = new StringTokenizer(br.readLine(), " ");
    int A = Integer.parseInt(st.nextToken());
    int B = Integer.parseInt(st.nextToken());
    int C = Integer.parseInt(st.nextToken());
    sb.append((A + B) % C).append("\n"); // (A+B)%C
    sb.append(((A % C) + (B % C)) % C).append("\n"); // ((A%C) + (B%C))%C
    sb.append((A * B) % C).append("\n"); // (A×B)%C
    sb.append(((A % C) * (B % C)) % C).append("\n"); // ((A%C) × (B%C))%C
    br.close();

    BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(System.out));
    bw.write(sb.toString());
    bw.close();
}

2588. 곱셈

public static void main(String[] args) throws IOException {
    BufferedReader br = new BufferedReader(new InputStreamReader(System.in));

    StringBuilder sb = new StringBuilder();
    int a = Integer.parseInt(br.readLine());
    String b = br.readLine();
    br.close();

    System.out.println(a * (b.charAt(2) - '0'));
    System.out.println(a * (b.charAt(1) - '0'));
    System.out.println(a * (b.charAt(0) - '0'));
    System.out.println(a * Integer.parseInt(b));
}

11382. 꼬마 정민

public static void main(String[] args) throws IOException {
    BufferedReader br = new BufferedReader(new InputStreamReader(System.in));

    StringTokenizer st;
    StringBuilder sb = new StringBuilder();
    st = new StringTokenizer(br.readLine(), " ");
    sb.append(Long.parseLong(st.nextToken()) + Long.parseLong(st.nextToken()) + Long.parseLong(st.nextToken()));
    br.close();

    System.out.println(sb);
}