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6만원 이상 무료배송
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주문하시는
총상품금액의 합계가
6만원 이상일 경우
택배비가 무료입니다.
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[JAVA] 텍스트 파일의 단어,라인수,문자수를 알아내는 소스
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작성자:
어라
작성일: 2009-07-07 09:46
조회: 95882
댓글: 0
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import java.io.*;
/**
* Command line program to count lines, words and characters
* in files or from standard input, similar to the wc
* utility.
* Run like that: java WordCount FILE1 FILE2 ... or
* like that: java WordCount < FILENAME.
* @author Marco Schmidt
*/
public class WordCount {
/**
* Count lines, words and characters in given input stream
* and print stream name and those numbers to standard output.
* @param name name of input source
* @param input stream to be processed
* @throws IOException if there were I/O errors
*/
private static void count(String name, BufferedReader in) throws
IOException {
long numLines = 0;
long numWords = 0;
long numChars = 0;
String line;
do {
line = in.readLine();
if (line != null)
{
numLines++;
numChars += line.length();
numWords += countWords(line);
}
}
while (line != null);
System.out.println(name + "\t" + numLines + "\t" +
numWords + "\t" + numChars);
}
/**
* Open file, count its words, lines and characters
* and print them to standard output.
* @param fileName name of file to be processed
*/
private static void count(String fileName) {
BufferedReader in = null;
try {
FileReader fileReader = new FileReader(fileName);
in = new BufferedReader(fileReader);
count(fileName, in);
} catch (IOException ioe) {
ioe.printStackTrace();
} finally {
if (in != null) {
try {
in.close();
} catch (IOException ioe) {
ioe.printStackTrace();
}
}
}
}
/**
* Count words, lines and characters of given input stream
* and print them to standard output.
* @param streamName name of input stream (to print it to stdout)
* @param input InputStream to read from
*/
private static void count(String streamName, InputStream input) {
try {
InputStreamReader inputStreamReader = new InputStreamReader(input);
BufferedReader in = new BufferedReader(inputStreamReader);
count(streamName, in);
in.close();
} catch (IOException ioe) {
ioe.printStackTrace();
}
}
/**
* Determine the number of words in the argument line.
* @param line String to be examined, must be non-null
* @return number of words, 0 or higher
*/
private static long countWords(String line) {
long numWords = 0;
int index = 0;
boolean prevWhitespace = true;
while (index < line.length()) {
char c = line.charAt(index++);
boolean currWhitespace = Character.isWhitespace(c);
if (prevWhitespace && !currWhitespace) {
numWords++;
}
prevWhitespace = currWhitespace;
}
return numWords;
}
public static void main(String[] args) {
if (args.length == 0) {
count("stdin", System.in);
} else {
for (int i = 0; i < args.length; i++) {
count(args[i]);
}
}
}
}
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* 관련 댓글 한말씀 부탁합니다.
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