引用他人代码去掉前面行数

import java.io.*;

public class ReadFile {
public static void main(String[] args) {
String strFile ="c:/app.txt";
File file = new File(strFile);
try {
// Create a buffered reader to read each line from a file.
BufferedReader in = new BufferedReader(new FileReader(file));
String s;
// Read each line from the file and echo it to the screen.
while ((s = in.readLine()) != null) {
int subPosition= s.indexOf(".");
String snew= s.substring(subPosition+1);
System.out.println(snew);
}
// Close the buffered reader, which also closes the file reader.
in.close();
} catch (FileNotFoundException e1) {
// If this file does not exist
System.err.println("File not found: " + file);
} catch (IOException e2) {
// Catch any other IO exceptions.
e2.printStackTrace();
}
}
}