你不能像在java中那样返回。如果您想调用此方法返回两个值，则应将play的返回类型更改为array。
我的建议是改变play，从构造函数调用它。

import java.util.Scanner;

public class UI {
    Scanner input = new Scanner(System.in);
    int Store, Week;
    
    public UI() {
        play();
    }

    public void play() {
        System.out.print(" Please enter the store #(1-6)");
        Store = input.nextInt();`

        System.out.print("please enter the operation (1-7)");
        Week = input.nextInt();
    }
}

play方法不需要返回值。
如果值是字段，则可以简单地在方法中对其进行赋值。

public class UI {
    Scanner input = new Scanner(System.in);
    int store, week;

    void play() {
        System.out.print(" Please enter the store #(1-6)");
        store = input.nextInt();
        System.out.print("please enter the operation (1-7)");
        week = input.nextInt();
    }
}