Java - File I/O

package io;

import java.awt.List;
import java.io.*;
import java.nio.*;
import java.nio.charset.Charset;
import java.nio.charset.StandardCharsets;
import java.nio.file.Files;
import java.nio.file.Paths;
import java.util.ArrayList;
import java.util.Scanner;

public class FileReaderWriter {

    FileReaderWriter() throws Exception {

        String input = "ABC";

        //////// Writer //////////
        // Writing character data
        FileWriter fout = null;
        // Writing binary data (images, music)
        FileOutputStream foutS = null;
        // Writing binary data (images, music)
        OutputStream outS = null;
        // Java 7 (OutputStream)
        //Files outF = null;

        fout = new FileWriter("/home/jlee/test.txt");
        foutS = new FileOutputStream("/home/jlee/test.txt");
        outS = new FileOutputStream("/home/jlee/test.txt");

        //Files.write(Paths.get("/home/jlee/test.txt"), input.getBytes());
        //byte[] contentInBytes = input.getBytes();
        //out.write(contentInBytes);
        //fout.write(input);
        //foutS.write(input.getBytes());
        //outS.write(input.getBytes(), 0, input.length());
        outS.write(input.getBytes());

        //////// Reader //////////
        //Reading character data
        FileReader fin = null;
        BufferedReader bin = null;
        //Reading binary data (image, music)
        FileInputStream finS = null;
        InputStream inS = null;

        fin = new FileReader("/home/jlee/test.txt");
        bin = new BufferedReader(fin);
        //System.out.println(bin.readLine());
        String str = bin.readLine();
        while(str != null){
            System.out.println(str+"\n");
            str = bin.readLine();
        }

        finS = new FileInputStream("/home/jlee/test.txt");
        inS = new FileInputStream("/home/jlee/test.txt");

        int data = inS.read();

        while (data >= 0) {   // while (data=in.read()!= -1){

            //char c = 65;  //A
            //char c = (char) data;
            System.out.print((char) data);
            data = inS.read();

        }

        ArrayList<String> lines;

        lines = (ArrayList<String>) Files.readAllLines(Paths.get("/home/jlee/test.txt"), StandardCharsets.UTF_8);
        for (String line : lines) {
            System.out.println(line);
        }

        fin.close();
        fout.close();

    }
}