// exceptions/InputFile.java
// (c)2017 MindView LLC: see Copyright.txt
// We make no guarantees that this code is fit for any purpose.
// Visit http://OnJava8.com for more book information.
// Paying attention to exceptions in constructors
import java.io.*;

public class InputFile {
 private BufferedReader in;
 public InputFile(String fname) throws Exception {
 try {
 in = new BufferedReader(new FileReader(fname));
 // Other code that might throw exceptions
 } catch(FileNotFoundException e) {
 System.out.println("Could not open " + fname);
 // Wasn't open, so don't close it
 throw e;
 } catch(Exception e) {
 // All other exceptions must close it
 try {
 in.close();
 } catch(IOException e2) {
 System.out.println("in.close() unsuccessful");
 }
 throw e; // Rethrow
 } finally {
 // Don't close it here!!!
 }
 }
 public String getLine() {
 String s;
 try {
 s = in.readLine();
 } catch(IOException e) {
 throw new RuntimeException("readLine() failed");
 }
 return s;
 }
 public void dispose() {
 try {
 in.close();
 System.out.println("dispose() successful");
 } catch(IOException e2) {
 throw new RuntimeException("in.close() failed");
 }
 }
}