java - 这是递归吗？它会起作用吗？

Question

我创建了一个我认为是递归的方法。

    public AssaultTeam getTeam(String teamName) {
        for(AssaultTeam team : teams){
            if(team.getName().equals(teamName)){
                return team;
            }
        }
        AssaultTeam newTeam = new AssaultTeam(teamName);
        teams.add(newTeam);
        return getTeam(teamName);
    }

'teams' 是 AssaultTeam 的 ArrayList

我以前从未使用过递归，我不确定这个方法是否有效。

Answer 1

是的，这就是递归，递归是指调用方法本身，并且您在此方法的末尾通过代码 return getTeam(teamNames);

是的，它会起作用，但有点奇怪，你实际上不需要这个解决方案的递归

public AssaultTeam getTeam(String teamName) {
        //iterate throught the teams list - OK
        for(AssaultTeam team : teams){
            if(team.getName().equals(teamName)){
                //if found - OK
                return team;
            }
        }
        AssaultTeam newTeam = new AssaultTeam(teamName);
        teams.add(newTeam);
        //call the getTeam, which will cause another iteration to find the item - NOT GOOD
        //return getTeam(teamName);
        //just return item you just created
        return newTeam;
    }