用switch做就可以了

import java.util.*;
public class Main {
    public static void main(String[] args)
    {
        Scanner input=new Scanner(System.in);
        int n=input.nextInt(),m=input.nextInt();
        String ans;
        switch(n+m)
        {
            case 1:
                ans="one";
                break;
            case 2:
                ans="two";
                break;
            case 3:
                ans="three";
                break;
            case 4:
                ans="four";
                break;
            case 5:
                ans="five";
                break;
            case 6:
                ans="six";
                break;
            case 7:
                ans="seven";
                break;
            case 8:
                ans="eight";
                break;
            case 9:
                ans="nine";
                break;
            default:
                ans="None";
                break;
        }
        System.out.println(ans);
    }
}
//java