Java LineNumberReader.reset()
Syntax
LineNumberReader.reset() has the following syntax.
public void reset() throws IOException
Example
In the following code shows how to use LineNumberReader.reset() method.
//from ww w .ja va 2 s . c om
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);
// reads and prints data from reader
System.out.println((char) lnr.read());
System.out.println((char) lnr.read());
// mark invoked at this position
lnr.mark(0);
System.out.println("mark() invoked");
System.out.println((char) lnr.read());
System.out.println((char) lnr.read());
// if this reader supports mark() an reset()
if (lnr.markSupported()) {
// reset() repositioned the stream to the mark
lnr.reset();
System.out.println("reset() invoked");
System.out.println((char) lnr.read());
System.out.println((char) lnr.read());
}
lnr.close();
}
}
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