Java While循环问题（新）

我的程序有问题。
我想存储while循环中看到的鸟的数量，然后在程序终止时打印看到最多的鸟。
我对if语句有疑问。
任何帮助都将不胜感激

import java.util.*;

class gardenbird
{
    public static void main(String[] main)
    {
        askbird();
        System.exit(0);
    }// END MAIN METHOD

    public static void askbird()
    {   
        final int sentinel = -1;
        int mostseen = 0; 
        int howmany = 0;

        print("When you want to end the program type in "+sentinel);

        while(howmany != sentinel)
        {   Scanner scanner = new Scanner(System.in);
            print("Which bird have you seen?");
            String bird = scanner.nextLine();
            howmany = input("How many where in your garden at once?");

            if(howmany>mostseen)
            {
                howmany = mostseen;
            }
            print("You saw " + howmany+ " " + bird +"\n It was the most common bird in your garden.");
        }
    }

    public static String print(String message)
    {       
        System.out.println(message);
        return message;
    }

    public static int input(String count)
    {   
        Scanner scanner = new Scanner(System.in);
        print(count);
        String number1=scanner.nextLine();

        int number = Integer.parseInt(number1);
        return number;
    }
}

---

if语句的内容是向后的，请尝试以下操作：

if(howmany > mostseen)
{
   mostseen = howmany;
}

而且

print("You saw " + mostseen + " " + bird +"\n It was the most common bird in your garden.");

---

也许应该出去玩一会儿？这样，您只会在终止时通知用户，而不是每次用户输入新条目时通知用户。你没有一个真正的设计可以让你打破循环，但这就是你的问题所陈述的……或者，你可以把它放在if语句中，这样只有当条件为真时才会打印出来，就像其他人指出的那样，if块的替换是向后的

创建实用程序方法来执行System.out.println（）是过度封装

一次又一次地创建对象会浪费系统资源，并且会降低代码的可读性，但是您的思路是正确的

对比一下

import java.util.Scanner;

public class GardenBird
{
  public static void main(String[] main)
  {
    askbird();
    System.exit(0);
  }// END MAIN METHOD

  public static void askbird()
  {
    Scanner scanner = new Scanner(System.in);
    final int sentinel = -1;
    int mostseen = 0;
    int howmany = 0;
    String mostSeenBird = "";
    String currentBird = "";

    System.out.println("When you want to end the program type in " + sentinel);

    while (howmany != sentinel)
    {
      System.out.println("Which bird have you seen?");
      currentBird = scanner.nextLine();
      System.out.println("How many where in your garden at once?");
      howmany = Integer.parseInt(scanner.nextLine());

      if (howmany > mostseen)
      {
        mostseen = howmany;
        mostSeenBird = currentBird;
      }
    }
    System.out.println("You saw " + howmany + " " + mostSeenBird
        + "\n It was the most common bird in your garden.");
    scanner.close();
  }
}

---

howmany=mostseen

应该是

mostseen=howmany

。您也可以重新考虑过多使用新的扫描仪实例。