Java IO Seek Example

MyFileReader.java

import java.io.File;
import java.io.RandomAccessFile;
public class MyFileReader {

	public static void main(String[] args) throws Exception {
		File file = new File("bigfile.txt");
		RandomAccessFile raf = new RandomAccessFile(file, "r");
		long maxSize = 500000;
		if(file.exists()){
			long size = file.length();
			System.out.println(size);
			if(size > maxSize) {
				long seekPoint = size - maxSize;
				raf.seek(seekPoint);
				System.out.println("Seeking : " + seekPoint);
				String line = ""; 
				int count = 0;
				while( null != (line = raf.readLine()) ){
					System.out.println("Line: " +  count + " "  + line);
					count++;
				}
			}
		}
	}
}