How are the objects of a specific type in a vector? Source of Java 1.3.

How to count the objects of a specific type in a vector?

isInstance can allow too much for your needs because it allows any object which can be cataloged to 'type', while you seem to be limited to objects that are exactly the type 'type '. In this case, you could do this:

for (Enumeration e = attachmentTypes.elements(); e.hasMoreElements();)
  Object check = e.nextElement();

  if (check.getClass().equals(type)) {
    counter++;
  }
}

The isInstance() method Javadoc:

http://docs.Oracle.com/javase/1.4.2/docs/API/Java/lang/class.html#isInstance%28Java.lang.object%29

(Create a link to the old Javadoc you gave mentioned Java 1.3 compatible source)

Tags: Java

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