计数文本文件中的单词？

Question

只是想说这个程序几乎在所有方面都打败了我。 我需要做的是输入一个.txt文件，其中包含

该文件中应该有59个字符，13个单词和6行。

不知道如何将其格式化为6行。

程序对行进行计数，但说文本文件中有78个单词，而不是13个。这是6 * 13 = 78。

我怎么能只读一行呢..因此读了13个单词而不是13 * 6。 该程序似乎数了数遍单词。 （评论员提出意见，以供其指导）。

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

在代码中，您具有以下内容：

// 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); 

代替这个，改为：

// 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 2

签出： 如何在System.in上使用多个Scanner对象？

您应该做什么：从第一台扫描仪取一行，然后用该行创建一个新的扫描仪

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

现在以与第二个循环相同的方式进行迭代

Answer 3

准备和测试。

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

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