OnJava8-Examples/exceptions/Cleanup.java

// exceptions/Cleanup.java
// (c)2016 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.
// Guaranteeing proper cleanup of a resource

public class Cleanup {
  public static void main(String[] args) {
    try {
      InputFile in = new InputFile("Cleanup.java");
      try {
        String s;
        int i = 1;
        while((s = in.getLine()) != null)
          ; // Perform line-by-line processing here...
      } catch(Exception e) {
        System.out.println("Caught Exception in main");
        e.printStackTrace(System.out);
      } finally {
        in.dispose();
      }
    } catch(Exception e) {
      System.out.println("InputFile construction failed");
    }
  }
}
/* Output:
dispose() successful
*/