Make the change as below:
public class ScannerTest {
public static void main(String ...args)throws ClassNotFoundException,SQLException,FileNotFoundException {
File f =new File("/home/rahul/Desktop/emp.txt");
Scanner s=new Scanner(f);
Class.forName("oracle.jdbc.driver.OracleDriver");
Connection con=DriverManager.getConnection("jdbc:oracle:thin:@172.22.22.131:1521:orcl","Demo","demo");
while(s.hasNext())
{
PreparedStatement st=con.prepareStatement("Insert into Employee values(?,?,?)");
String rcd = s.next();
Scanner s1 = new Scanner(rcd);
s1.useDelimiter(",|\\n");
String name=s1.next();
int id=s1.nextInt();
int sal=s1.nextInt();
st.setString(1,name);
st.setInt(2,id);
st.setInt(3,sal);
int result=st.executeUpdate();
System.out.println("Records Changed: "+ result);
}
con.close();
}
}
}