在文本文件中計數單詞？

Question

只是想說這個程序幾乎在任何方面都擊敗了我。 輸入什麼我需要做的是一個.txt文件，其中包含此

應該有 59個字符 13個字 和 6號線在此文件 。

不知道如何將其格式化爲6行。

則計算該行，但說，有78個字的文本文件，而不是13這是6 * 13 = 78

我怎樣才能得到它的只讀行一次..因此閱讀13個字不是13 * 6。該程序似乎在計算多次的單詞。 （評論是由proffesor指導）。

package inputoutput; 

import java.util.*; 
import java.io.*; 

public class input { 

public static void main(String[] args) throws FileNotFoundException { 
    Scanner s = new Scanner(System.in); 
    String name; 
    int lineCount = 0; 
    int wordCount = 0; 


    System.out.println("Please type the file you want to read in: "); 
    name = s.nextLine(); 



    // create a Scanner object to read the actual text file 
    File input = new File("C:\\Users\\Ceri\\workspace1\\inputoutput\\src\\inputoutput\\" + name + ".txt"); 
    Scanner in = new Scanner(input); 


    while (in.hasNextLine()){ // enter while loop if there is a complete line available 

     // increase line counter variable 
     lineCount++; 


     // read in next line using Scanner object, inFile 
     in.nextLine(); 

     // create another Scanner object in order to scan the line word by word 
     Scanner word = new Scanner(input); 


     // use while loop to scan individual words, increase word counter 
     while(word.hasNext()){ 
      // increase word counter 
      wordCount++;  
      // Scanner move to next word 
      word.next(); 
     } 
     word.close(); 
     // count number of chars including space but not line break by using the length() method of the String class and increment character counter 

    } 

    in.close(); 
    System.out.print("Lines " + lineCount + " "+ "Words " + wordCount); 

} 

Answer 1

檢查出來：How to use multiple Scanner objects on System.in?

，你該怎麼辦：採取從第一掃描器一條線，然後創建一個新的掃描儀與線

String s = in.nextLine(); 
Scanner sc = new Scanner(s); 

現在重複同樣的方式爲你第二回路

Answer 2

在您的代碼中，您有以下內容：

// read in next line using Scanner object, inFile 
in.nextLine(); 

// create another Scanner object in order to scan the line word by word 
Scanner word = new Scanner(input); 

替代那種，改成這樣：

// read in next line using Scanner object, inFile 
String nextline = in.nextLine(); 

// create another Scanner object in order to scan the line word by 
// word 
Scanner word = new Scanner(nextline); 

Answer 3

準備和測試。

public class input { 

public static void main(String[] args) throws FileNotFoundException { 
    Scanner s = new Scanner(System.in); 
    String name; 
    int lineCount = 0; 
    int wordCount = 0; 


System.out.println("Please type the file you want to read in: "); 
name = s.nextLine(); 



    // create a Scanner object to read the actual text file 
File input = new File("C:\\Users\\Ceri\\workspace1\\inputoutput \\src\\inputoutput\\" + name + ".txt"); 
s.close(); 

//-------------------- 
    //Count how many lines 
Scanner in = new Scanner(input); 
while (in.hasNextLine()){ 

    // increase line counter variable 
    ++lineCount; 
    in.nextLine(); 
} 
in.close(); //Close [in] Scanner 



//------------------------------  
//Count how many words 
Scanner word = new Scanner(input); 
while(word.hasNext()){ 

// increase word counter variable 
    ++wordCount; 
    word.next(); 
} 
word.close(); //close [word] Scanner 



System.out.print("Lines " + lineCount + " "+ "Words " + wordCount); 

}//end of main Method 


}//end of Class 

與建議[IF]它不爲你工作。