Copy File in Java: Explanation & Practice

Problem summary

Copy the contents of source.txt to destination.txt.

Starter code

import java.io.*;

public class Main {
    public static void main(String[] args) {
        // Copy source.txt to destination.txt
        // Print: Copy successful
    }
}

Expected output and test cases

• File copied

  Copy successful

Hints

1. Open reader for source, writer for dest
2. Read and write in loop
3. Or use Files.copy() for simplicity

Related File I/O exercises

• Practice Append to File in Java
• Practice Count Lines in File in Java
• Practice Check File Exists in Java

Practice all File I/O exercises · Run this idea in the Java compiler