What does Finalize() method in Java do?

Replies

• 

  monujatt

  Finalize() method is basically used for the garbage collection (for releasing resources like opened files etc.)
  class TestFile {
  FileInputStream aFile = null;
  TestFile(String filename) {
  try {
  aFile = new FileInputStream(filename);
  } catch (java.io.FileNotFoundException e) {
  System.err.println("Could not open file " + filename);
  }
  }
  }
  protected void finalize () throws throwable {
  if (aFile != null) {
  aFile.close();
  aFile = null;
  }
  }
• 

  sulochana anand

  It can be used when an object is about to destroy bu need to perform some action.there might be some situation where an object holding non java resouce such as file handler or charecter font etc and a programar want to make sure these resouces are freed before an object is destroyed.in such situation java provide us a method finalize().by using this we can define an action that is about to occur when an object is about to regaind by garbage collector.