Java tutorial
import java.io.FileReader; import java.io.IOException; import java.io.LineNumberReader; public class Main { public static void main(String[] args) throws IOException { FileReader fr = new FileReader("C:/test.txt"); LineNumberReader lnr = new LineNumberReader(fr); // set current line number lnr.setLineNumber(100); System.out.println("setLineNumber(100) is invoked"); // get current line number int i = lnr.getLineNumber(); System.out.print("Current line number: " + i); lnr.close(); } }