Java循環關鍵詞含

Question

可能重複：
Loop Keyword Program Homework

了，我就是有這個程序有問題。用戶將輸入一個關鍵字，然後再輸入一個句子。我需要程序輸出多少句子包含關鍵字，以及關鍵字在字符串中的平均起始位置。這是我迄今爲止所擁有的。只要程序輸出，它不會給我輸入關鍵字的正確次數。它給我的句子＃。有人能幫幫我嗎？謝謝。

import java.util.Scanner; 

public class Lab6Loops { 

    public static void main(String[] args) { 

     String keywordString; 
     String inputString; 
     Scanner keyboard = new Scanner (System.in); 
     int numofSentences = 0; 
     int numofKeyword = 0;      
     System.out.println ("Enter a keyword. We will search each sentence for this word."); 
     keywordString = keyboard.nextLine(); 
     System.out.println ("Please enter a sentence or type 'stop' to finish"); 
     inputString = keyboard.nextLine(); 
     while(!inputString.equals ("stop")) 
     {  
      if(inputString.contains (inputString)); 
      numofSentences = numofSentences + 1; 
      if(inputString.contains (keywordString)); 
      numofKeyword = numofKeyword + 1; 
      System.out.println ("Enter a line of text or 'stop' to finish"); 
      inputString = keyboard.nextLine(); 
     } 
     System.out.println ("You entered " + numofSentences + " sentences"); 
     System.out.println ("You have " + numofKeyword + "sentences that contain the keyword"); 
    } 
} 

Answer 1

也許沒有;的if報表後，將工作:-)

public static void main(String[] args) { 

    Scanner keyboard = new Scanner (System.in); 

    System.out.println("Enter a keyword. We will search each sentence for this word."); 
    String keywordString = keyboard.nextLine(); 
    System.out.println("Please enter a sentence or type 'stop' to finish"); 
    String inputString = keyboard.nextLine(); 

    int numofSentences = 0; 
    int numofKeyword = 0;      
    while (!inputString.equals("stop")) 
    {  
     if (inputString.contains(inputString)) 
      numofSentences++; 
     if (inputString.contains(keywordString)) 
      numofKeyword++; 

     System.out.println("Enter a line of text or 'stop' to finish"); 
     inputString = keyboard.nextLine(); 
    } 
    System.out.println ("You entered " + numofSentences + " sentences"); 
    System.out.println ("You have " + numofKeyword + "sentences that contain the keyword"); 
}