题解 | #修改Data类的定义#

import java.util.Scanner;

public class Main {

public static void main(String[] args) {
    Scanner scanner = new Scanner(System.in);
    while (scanner.hasNextInt()) {
        int x = scanner.nextInt();
        int y = scanner.nextInt();
        Data data = new Data(x, y);
        System.out.println(data.getX() + data.getY());
    }
}

}

class Data {

private int x;
private int y;

public Data(int x, int y) {
    this.x = x;//this字段将成员变量和局部变量联系在一起
    this.y = y;
}

public int getX() {
    return this.x;
}

public int getY() {
    return this.y;
}

}