獲取樹的高度和深度

import org.assertj.core.util.Lists;

import java.util.ArrayList;
import java.util.List;

public class Test {
    public static void main(String[] args) {
        Objects objects = new Objects();
        Objects objects1 = new Objects();
        Objects objects2 = new Objects();
        objects.setLits(Lists.newArrayList(objects1));
        objects1.setLits(Lists.newArrayList(objects2));
        System.out.println(height(objects));

    }
    public static int height(Objects obj){
        List<Objects> objs = obj.getLits();
        int maxHeight = 0;
        if(objs.size()==0)
            return 1;
        for(Objects obj1 :objs){
            int curheight = height(obj1);
            if(curheight>maxHeight)
                maxHeight = curheight;
        }
        return maxHeight+1;
    }
    private static int getHeight(SObjects obj) {
        int height = 0;
        List<Objects> objs = obj.getLits();
        if (subjectList.isEmpty()) {
            return 1;
        }
        height = objs.size();
        for(Objects obj1 :objs){
            height += getHeight(obj1) - 1;
        }
        return height;
    }
}
class Objects{
    List<Objects> lits = new ArrayList<>();

    public List<Objects> getLits() {
        return lits;
    }

    public void setLits(List<Objects> lits) {
        this.lits = lits;
    }
}