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55 lines (50 loc) · 1.46 KB
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Copy pathWordCount.java
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55 lines (50 loc) · 1.46 KB
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// A word counting utility.
import java.io.*;
class WordCount {
public static int words = 0;
public static int lines = 0;
public static int chars = 0;
public static void wc(InputStreamReader isr)
throws IOException {
int c = 0;
boolean lastWhite = true;
String whiteSpace = " \t\n\f\r";
while ((c = isr.read()) != -1) {
// Count characters
chars++;
// Count lines
if (c == '\n') {
lines++;
}
// Count words by detecting the start of a word
int index = whiteSpace.indexOf(c);
if (index == -1) {
if (lastWhite == true) {
++words;
}
lastWhite = false;
} else {
lastWhite = true;
}
}
if (chars != 0) {
++lines;
}
}
public static void main(String args[]) {
FileReader fr;
try {
if (args.length == 0) { // We're working with stdin
wc(new InputStreamReader(System.in));
} else { // We're working with a list of files
for (int i = 0; i < args.length; i++) {
fr = new FileReader(args[i]);
wc(fr);
}
}
} catch (IOException e) {
return;
}
System.out.println(lines + " " + words + " " + chars);
}
}