How do I reset the file pointer to the beginning of a file in Java?

I'm writing a program in Java. I need to compare the data in two files I have to check each line of file 2 from each line of file 1 and write them to the third file if I find a match After I read the end of file 2, how do I reset the pointer to the beginning of the file?

public class FiFo {
    public static void main(String[] args) 
    {
        FileReader file1=new FileReader("d:\\testfiles\\FILE1.txt");
        FileReader file2=new FileReader("d:\\testfiles\\FILE2.txt");
        try{
            String s1,s2;
            while((s1=file1.data.readLine())!=null){
                System.out.println("s1: "+s1);
                while((s2=file2.data.readLine())!=null){
                    System.out.println("s2: "+s2);
                }
            }
            file1.closeFile();
            file2.closeFile();
        }catch (IOException e) {
            e.printStackTrace();
        }
    }
}

class FileReader {
    BufferedReader data;
    DataInputStream in;

    public FileReader(String fileName)
    {
        try{
            FileInputStream fstream = new FileInputStream(fileName);
            data = new BufferedReader(new InputStreamReader(fstream));
        }
        catch (IOException e) {
            e.printStackTrace();
        }
    } 

    public void closeFile()
    {
        try{
            in.close();
        }
        catch (IOException e) {
            e.printStackTrace();
        }
    }
}

Solution

I believe RandomAccessFile is what you need It includes RandomAccessFile #seek and RandomAccessFile #getfilepointer

Rewind() is seek (0)