[백준 Java] 10950: A+B - 3

1. 문제

2. 맞춘코드

2.1. scanner + arr[]

import java.util.Scanner;

public class bj10950{
	public static void main(String[] args){
		Scanner in = new Scanner(System.in);

		int c = in.nextInt();
		int arr[] = new int[c];

		for(int i=0; i<c; i++){
			int a = in.nextInt();
			int b = in.nextInt();
			arr[i] = a+b;
		}
		in.close();

		for(int k : arr){
			System.out.println(k);
		}
		
	}
}

2.2. BufferedReader + StringTokenizer + .append()

//[백준 Java] 10950: A+B - 3

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.io.IOException;
import java.util.StringTokenizer;

public class bj10950_2{
	public static void main(String[] args) throws IOException{
		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
		StringTokenizer st;

		int t;
		StringBuilder sb = new StringBuilder();

		t=Integer.parseInt(br.readLine());

		for(int i=0;i<t;i++){
			st = new StringTokenizer(br.readLine());
			sb.append(Integer.parseInt(st.nextToken()) + Integer.parseInt(st.nextToken()));
			sb.append('\n');
		}
		
		System.out.println(sb);
	}
}

2.3. Scanner

//[백준 Java] 10950: A+B - 3 >> 3

import java.util.Scanner;

public class bj10950{
	public static void main(String[] args){
	
		Scanner sc = new Scanner(System.in);

		int t = sc.nextInt();

		for(int i = 0; i<t; i++){
			int a = sc.nextInt();
			int b = sc.nextInt();

			System.out.println(a+b);
		}
	}
}