Максимална подсума

import java.util.Scanner;

public class MaxPodsuma {
    public static void maxPodsuma(SLL<Integer> list){
        SLLNode<Integer> tmp=list.getFirst();
        SLLNode<Integer> tmp2;
        int sum=0;
        int max=tmp.element;
        while (tmp!=null){
            sum=0;
            sum+=tmp.element;
            tmp2=tmp.succ;
            while (tmp2!=null){
                sum+=tmp2.element;
                if(sum>max){
                    max=sum;
                }
                tmp2=tmp2.succ;
            }
            tmp=tmp.succ;
        }
        System.out.println(max);
    }
    public static void main(String[] args) {
        Scanner in=new Scanner(System.in);
        int n=in.nextInt();

        SLL<Integer> list=new SLL<>();
        for(int i=0;i<n;i++){
            list.insertLast(in.nextInt());
        }
        maxPodsuma(list);
    }
}