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Read a file using Java

package com.pukhraj.blog;

import java.io.BufferedReader;
import java.io.DataInputStream;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStreamReader;

public class ReadSimpleFile {

public static void main(String[] args) {

String inputFileName =  "FullPath/filename.extension";

try{

FileInputStream fstream = new FileInputStream(inputFileName);
DataInputStream in = new DataInputStream(fstream);

BufferedReader br = new BufferedReader(new InputStreamReader(in));

String strLine;

//Read File Line By Line
while ((strLine = br.readLine()) != null)   {


}

}catch(IOException e){
e.printStackTrace();
}
}

}