here solution for part a pls give solution for part b, c, d
import java.io.*;public class CopyFile {
public static void main(String args[]) throws IOException { FileInputStream in = null; FileOutputStream out = null;
try { in = new FileInputStream("input.txt"); out = new FileOutputStream("output.txt"); int c; while ((c = in.read()) != -1) { out.write(c); } }finally { if (in != null) { in.close(); } if (out != null) { out.close(); } } }
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