ファイルをスキャンして行数や母音などを数えるプログラムを作成しましたが、実行すると無限ループになります。私はそれが 私があまりよく知らない方法.hasNext()
と方法に関係しているとかなり確信しています.hasNextLine()
import java.util.*;
import java.io.*;
/**
*
*
*/
public class Wordcount1 {
public static void main(String[] args) {
int vowels=0;
int punctuation=0;
int sentences=0;
int words=0;
int lines=0;
int alphaNumeric=0;
try{
Scanner input = new Scanner(System.in);
System.out.println("Enter file name: ");
File file = new File(input.nextLine());
Scanner fileReader = new Scanner(file);
while(fileReader.hasNextLine()){
lines +=1;
}
while(fileReader.hasNext()){
{ fileReader.next();
words +=1;
}
String word = fileReader.next();
for (int i=0; i<word.length();i++){
char ch= word.charAt(i);
if(ch=='a'||ch=='e'||ch=='i'||ch=='o'||ch=='u')
vowels +=1;
if((ch=='!'||ch=='.'||ch=='?'))
sentences +=1;
if(Character.isLetterOrDigit(ch))
alphaNumeric +=1;
switch(ch){
case ',':
punctuation +=1;
break;
case '[':
punctuation +=1;
break;
case ']':
punctuation +=1;
break;
case ':':
punctuation +=1;
break;
case '`':
punctuation +=1;
break;
case '-':
punctuation +=1;
break;
case '!':
punctuation +=1;
break;
case '_':
punctuation +=1;
break;
case '(':
punctuation +=1;
break;
case ')':
punctuation +=1;
break;
case '.':
punctuation +=1;
break;
case '?':
punctuation +=1;
break;
case '"':
punctuation +=1;
break;
case ';':
punctuation +=1;
break;
}
}
}
System.out.println("The number of words in the file name: " + words);
System.out.println("The number of lines in the file name: " + lines);
System.out.println("The number of alphanumeric characters: "
+ "in the file name: " + alphaNumeric);
System.out.println("The number of sentences in the file name: "
+ sentences);
System.out.println("The number of vowels in the file name: " + vowels);
System.out.println("The number of punctuations in the file name: "
+ punctuation);
}catch(FileNotFoundException e){
e.printStackTrace();
}
}
}