package
com.govindsblog.algos;
import
java.io.BufferedReader;
import
java.io.DataInputStream;
import
java.io.FileInputStream;
import
java.io.FileNotFoundException;
import
java.io.IOException;
import
java.io.InputStreamReader;
import
java.util.ArrayList;
import
java.util.List;
import
java.util.StringTokenizer;
public
class
MyDistinctFileWords {
public
List<String> getDistinctWordList(String fileName){
FileInputStream fis =
null
;
DataInputStream dis =
null
;
BufferedReader br =
null
;
List<String> wordList =
new
ArrayList<String>();
try
{
fis =
new
FileInputStream(fileName);
dis =
new
DataInputStream(fis);
br =
new
BufferedReader(
new
InputStreamReader(dis));
String line =
null
;
while
((line = br.readLine()) !=
null
){
StringTokenizer st =
new
StringTokenizer(line,
" ,.;:\""
);
while
(st.hasMoreTokens()){
String tmp = st.nextToken().toLowerCase();
if
(!wordList.contains(tmp)){
wordList.add(tmp);
}
}
}
}
catch
(FileNotFoundException e) {
e.printStackTrace();
}
catch
(IOException e) {
e.printStackTrace();
}
finally
{
try
{
if
(br !=
null
) br.close();}
catch
(Exception ex){}
}
return
wordList;
}
public
static
void
main(String a[]){
MyDistinctFileWords distFw =
new
MyDistinctFileWords();
List<String> wordList = distFw.getDistinctWordList(
"C:/sample.txt"
);
for
(String str:wordList){
System.out.println(str);
}
}
}
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