How remove duplication in the array

import java.util.*;
public class stringlength{
     public static void main(String[] args){
          String p = "i love java very much.but i like it";
          String t = "i love java very much.but i like it";
          String[] sentence1 = p.split("\\.");
          String[] sentence2 = t.split("\\.");
          String[] EachLine1;
          String[] EachLine2;
//*******Begin break the paragraph into line p and t****************
          for(int line1_p = 0 ; line1_p < sentence1.length ; line1_p++){
                    EachLine1 = sentence1[line1_p].split(" ");
               for(int line2_t = 0 ; line2_t < sentence2.length ; line2_t++){
                    EachLine2 = sentence2[line2_t].split(" ");
          //************End of break line*************************************
          //************Begin compare each word********************************
                    for(int word_p = 0 ; word_p < EachLine1.length ; word_p++){
                         for(int word_t = 0 ; word_t < EachLine2.length ; word_t++){
                              if(EachLine2[word_t].equals(EachLine1[word_p])){
                                   System.out.println(EachLine1[word_p]);
                         if(count>6){     // set the size that want to match
                                             cost++;
          //*************End of compare*****************************************
the above is my coding.
well i wan compare the 2 string..then if found matched...print out the match word.
from the comparison, it will create duplication during the matching.
so i wan remove all the duplication word by only print out the match result.
thx guys.....:)

well i found out the solution from the example already.
but that one is for single array...
now i want to compare 2 string together but when i found the matched word...it cannot remove the duplication words..
anyone can help me to solve this problem?
it is very urgent..!!
import java.util.*;
public class FindDups {
    public static void main(String args[]) {
         String a ="i came i saw i left left left";
         String b ="i came i saw i left left left";
         String[] c=a.split(" ");
         String[] d=a.split(" ");
         for(int i=0;i<c.length;i++){
              for(int j=0;j<d.length;j++){
                   if(c.equals(d[j])){
               String[] e=d[j].split(" ");
               ArrayList aList;
                    aList = new ArrayList( Arrays.asList(e ) );
          HashSet s = new HashSet( aList ); // create a HashSet
          System.out.println(" distinct words detected: "+s);

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