Comparing two files and printing out matching words

Code Java:

import java.io.*;
import java.util.Arrays;
 
public class Driver {
	private FileReader mReader,idReader;
	private BufferedReader mobyReader,myIdentifierReader;
	private FileOutputStream vStream;
	private PrintWriter validatedStream;
	private String mLine, idLine,mLineArray[],idLineArray[];
 
	public Driver(){
	try{
		int i,j,b,k=0;
		mReader = new FileReader("WordListMoby.txt");
		mobyReader = new BufferedReader(mReader);
		idReader = new FileReader("myIdentifiers.txt");
		myIdentifierReader = new BufferedReader(idReader);
		vStream = new FileOutputStream("validatedIdentifiers.txt.");
		validatedStream = new PrintWriter(vStream);
		mLineArray = new String[100];
		idLineArray = new String[100];
		mLine = mobyReader.readLine();
		idLine = myIdentifierReader.readLine();
 
		for( j=0;idLine!=null;j++){
			if(j==idLineArray.length){
				idLineArray = Arrays.copyOf(idLineArray,idLineArray.length + 100); 
			}
			idLineArray[j]=idLine;
			idLine = myIdentifierReader.readLine();
		for( i=0;mLine!=null;i++){
			if(i==mLineArray.length){
				mLineArray = Arrays.copyOf(mLineArray,mLineArray.length + 100); 
			}
			mLineArray[i]=mLine;
			mLine = mobyReader.readLine();
			if(mLineArray[i].equals(idLineArray[j])){
				System.out.println(idLineArray[j]);
		}
	}	
}	 myIdentifierReader.close();
	 mobyReader.close();
	}catch(IOException e){
		System.out.println("I/O exception");
		}
	}
	public static void main(String[] args) {
		Driver d = new Driver();
	}
}

What this is suppose to do is compare the words found in myIdentifiers.txt and compare them to the WordListMoby.txt file. The myIdentifiers file is all user inputted words. I currently have jumping,running,falling, and xyz in the file. The WordListMoby file has every word in the english dictionary. When I run the program it only outputs jumping (the first word that it found as a match in both files), but won't print falling or running when it should. Any suggestions. I believe the error is in the .equals loop but I have been toying with this for hours to try and get it to work with out any luck.