Java Program to Copy File

The following code is to copy the file from the source to destination and replace if already exists.
Code:-

import java.nio.file.*;
import java.util.*;
import java.nio.file.CopyOption.*;
public class Copy {
    String spth, tpth;
    Path source, target;
    Scanner scan = new Scanner(System.in);
    public void input() {
        try {
            System.out.printf("SOURCE: ");
            spth = scan.nextLine();
            System.out.printf("TARGET: ");
            tpth = scan.nextLine();
        } catch (InputMismatchException e) {
            System.err.println("Error Occur!\n" + e.getMessage());
            System.exit(0);
        }
    }
    public void copy() {
        try {
            source = Paths.get(spth);
            target = Paths.get(tpth);
            Files.copy(source, target.resolve(source.getFileName()));
            spth = spth.substring(spth.lastIndexOf("\\"), spth.length());
            tpth = tpth.concat(spth);
            target = Paths.get(tpth);
            if (Files.exists(target)) {
                System.out.println("RESULT: COPIED!");
            } else {
                System.out.println("RESULT: FAILED TO COPY!");
            }
        } catch (Exception e) {
            System.err.println("Error Occur!\n" + e.getMessage());
            System.exit(0);
        }
    }
    public void copyFileContents() {
        try {
            CopyOption[] REPLACE_EXISTING;
            REPLACE_EXISTING = new CopyOption[]{StandardCopyOption.ATOMIC_MOVE};
            Files.copy(source, target, REPLACE_EXISTING);
        } catch (Exception e) {
            System.err.println("Error Occur!\n" + e.getMessage());
            System.exit(0);
        }
    }
    public static void main(String[] args) {
        Copy cp = new Copy();
        cp.input();
        cp.copy();
    }
}