Question

我无法弄清楚如何为我的if语句格式化代码。通常，我会从用户那里获取字符串输入并使用.equals，但是我需要使用的对象使这成为不可能。每当我打印数组的内容时，我都会得到引用。我想获取存储在数组中并在以后的代码行中打印的用户输入。

问题：如果可能的话，如何获取扫描器输入以分配给“团队”并在if语句中进行比较？我应该如何分配这些值？

这是我得到的代码

public class Team implements Comparable<Team> {

public String toString(String team, int wins) {
    String winningStatement = team + ": " + wins;
    return winningStatement;
}

// Data fields
private String name;
private int winCount;

Team() {
    name = "Sooners";
    winCount = 1;
}

Team(String inputName) {
    name = inputName;
    winCount = 1;
}

Team(String inputName, int inputWinCount) {
    name = inputName;
    winCount = inputWinCount;
}

这是我尝试使用ArrayList

        Scanner scnr = new Scanner(System.in);
        Random rando = new Random();
        String name = "hi";
        int cycles = 0;
        int value = 0;
        ArrayList<Team> teams = new ArrayList<Team>();
        Team myTeam = new Team();
        System.out.println("Welcome to the Advanced Sportsball Tracker!");

        while (!name.equals("x")) // looping print statement
        { // x loop begins
            System.out.println("Which team just won? (x to exit)");
            name = scnr.next();
                if (!teams.equals(name))
                    {
                    teams.add(thisTeam);
                    myTeam.setWinCount(1);
                    }
                else if (teams.equals(name))
                {
                    myTeam.incrementWinCount();
                }
            cycles++;
        }// x loop ends

谢谢您的帮助

Answer 1

仅根据示例的意图进行判断……看来这就是您要实现的目标。如前所述，您关于ArrayList对象如何与重载的构造函数相关的问题实际上没有道理

public class Team  {
    // Data fields
    private String name;
    private int winCount;

    public Team() {
        name = "Sooners";
        winCount = 1;
    }

    public Team(String inputName) {
        name = inputName;
        winCount = 1;
    }

    Team(String inputName, int inputWinCount) {
        name = inputName;
        winCount = inputWinCount;
    }

    public String toString(String team, int wins) {
        return team + ": " + wins;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public int getWinCount() {
        return winCount;
    }

    public void setWinCount(int winCount) {
        this.winCount = winCount;
    }

    void incrementWinCount() {
        winCount++;
    }
}

void runSystem() {
    List<Team> teams = new ArrayList<>();
    Scanner scnr = new Scanner(System.in);
    int cycles = 0;

    System.out.println("Welcome to the Advanced Sportsball Tracker!");

    System.out.println("Which team just won? (x to exit)");
    String name = scnr.next();

    while (!"x".equals(name)) {
        final String teamName = name;
        Team team = teams.stream().filter(t -> teamName.equals(t.getName())).findAny().orElse(null);

        if (team == null) {
            team = new Team(teamName, 1);
            teams.add(team);
        }
        else {
            team.incrementWinCount();
        }

        cycles++;
        System.out.println("Which team just won? (x to exit)");
        name = scnr.next();
    }
}

如何将扫描仪对象转换为参考变量？

1 个答案: