Can anyone help fix this code. Need to remove any duplicate words , the last wor

Question

Can anyone help fix this code.  Need to remove any duplicate words , the last words in a line , any words less than 8 in length, and any trailing white space, thanks. Example:

dictionary.txt:

a det
ability    n
able adj
about adv
about prep
above adv
above rep
absence    n
absolutely adv
academic adj
accept v
access n
accident n
accompany v

AAAAA.txt:

absolutely

academic

accident

accompany

import java.util.Scanner;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.PrintWriter;
import java.io.FileOutputStream;
import java.lang.*;
import java.io.*;

public class RemoveFirstWord
{
public static void main(String args[]) throws Exception
{
String newLine = System.getProperty("line.separator");

String originalFileName = "dictionary.txt";

String newFileName = "AAAA.txt";

PrintWriter outputStream = new PrintWriter(new File ("AAAA.txt"));

Scanner inputStream = new Scanner(new File("dictionary.txt"));

while(inputStream.hasNextLine())
{
String line = inputStream.nextLine();

String[] arr = line.split("\s+");

for(int i = 0; i < arr.length-1; i++)
{
if(arr.length < 8){
outputStream.write(arr[i] + " ");
}
else{continue;}
}

outputStream.write(newLine);
outputStream.flush();
}//end while loop

}//end main
}//end class

Explanation / Answer

DO RATE if u are satisfied

Modifications

Used String.trim() to remove trailing space

Used Set Object for removing duplicates. In a Set on unique objects exist. If u try to add that is already existing that won't be added again

Last words are removed

import java.util.Scanner;

import java.io.PrintWriter;

import java.lang.*;

import java.io.*;

import java.util.HashSet;

import java.util.Iterator;

import java.util.Set;

public class dictionary {

public static void main(String args[]) throws Exception {

String newLine = System.getProperty("line.separator");

String originalFileName = "dictionary.txt";

String newFileName = "AAAA.txt";

PrintWriter outputStream = new PrintWriter(new File("AAAA.txt"));

Scanner inputStream = new Scanner(new File("dictionary.txt"));

Set <String> dict = new HashSet<String>();

while (inputStream.hasNextLine()) {

String line = inputStream.nextLine();

line = line.trim();

String[] arr = line.split("\s+");

if (arr[0].length() >= 8) {

dict.add(arr[0]);

} else {

continue;

}

}

//Iterate all the elements

Iterator it = dict.iterator();

while( it.hasNext() ){

outputStream.write( it.next().toString() +" ");

outputStream.flush();

}//end while loop

}//end main

}//end class

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