import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.FileSystem;
import org.apache.hadoop.fs.Path;
 
public class HDFSOperations {
    public static void main(String[] args) throws Exception {
        Configuration conf = new Configuration();
        FileSystem fs = FileSystem.get(conf);
 
        // Create a file
        fs.create(new Path("/user/yourusername/newfile.txt"));
 
        // Read a file
        FSDataInputStream in = fs.open(new Path("/user/yourusername/existingfile.txt"));
        byte[] buffer = new byte[1024];
        int bytesRead = 0;
        while ((bytesRead = in.read(buffer)) != -1) {
            System.out.write(buffer, 0, bytesRead);
        }
        in.close();
 
        // Delete a file
        fs.delete(new Path("/user/yourusername/filetodelete.txt"), true);
 
        fs.close();
    }
}-- your code goes here

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