Java - 語法檢查運行不正常

Question

我在編寫模擬植物生長的程序時有a question earlier。它基本上使用一個循環來計數達到預定的限制。

因爲我已經改變了我的代碼如下：

/* 

Java program: plant.java 

This program runs a loop simulating plant growth. 
The idea is that the plant will continue to have "repeated" 
growth and that it will stop (or slow down to a crawl) at some point, 
in this case at 100 branches. 

*/ 

public class plant1 
{ 
    public static void main (String [] poop) 
    { 
     int current_growth = 0, limit = 100; //plant growth starts at ZERO and is limited to 100 
     String word = "branches"; 

     for(current_growth = 0; current_growth <= limit; ++current_growth) 
     { 
      //here, we are checking to see if the plant has grown just 1 inch. 
      //this is important just for grammatical purposes 
      if (current_growth == 1) 
      { 
       word = "branch"; //this changes the "word" to branch instead of branches 
      } 

      if (current_growth < 100) 
      { 
      System.out.println("Your plant has grown " + current_growth + " " + word); 
      } 
      else 
      { 
      System.out.println("Your plant will no longer grow."); 
      } // end else 
     } //end while loop 
    } //end main method 
} //end class 

唯一的問題是：

我添加了一個語法檢查，檢查單複數與問候的branches數正在打印。

然而，當我運行代碼的檢查沒有工作，所以我有這樣的句子Your plant has grown 97 branch時，它應該說Your plant has grown 97 branches

Answer 1

您需要的字變量重置回「字」如果current_growth大於1.

Answer 2

好吧，如果你想有一個「快速和骯髒」的解決方案只需添加這else語句：

if (current_growth == 1) 
{ 
    word = "branch"; //this changes the "word" to branch instead of branches 
} 
else { 
    word = "branches"; 
} 

Answer 3

與你的程序的問題是，該變量word是個主要方法的範圍，而不是for-loop的範圍。這意味着如果您在一次迭代中修改for循環內的變量，它將在剩餘的迭代中保留該值。

/* 

Java program: plant.java 

This program runs a loop simulating plant growth. 
The idea is that the plant will continue to have "repeated" 
growth and that it will stop (or slow down to a crawl) at some point, 
in this case at 100 branches. 

*/ 

public class plant1 
{ 
    public static void main (String [] poop) 
    { 
     int current_growth = 0, limit = 100; //plant growth starts at ZERO and is limited to 100 

     for(current_growth = 0; current_growth <= limit; ++current_growth) 
     { 
      String word = "branches"; 
      //here, we are checking to see if the plant has grown just 1 inch. 
      //this is important just for grammatical purposes 
      if (current_growth == 1) 
      { 
       word = "branch"; //this changes the "word" to branch instead of branches 
      } 

      if (current_growth < 100) 
      { 
       System.out.println("Your plant has grown " + current_growth + " " + word); 
      } 
      else 
      { 
       System.out.println("Your plant will no longer grow."); 
      } // end else 
     } //end while loop 
    } //end main method 
} //end class