Expensive creation of a Java instance
Execute this code in your Java program:
SimpleDateFormat df = new SimpleDateFormat();
Here are the consequences:
- 55 distinct methods are called a total of 123 times
- 44 new instances of objects are created
That is one badly-designed class. And that's before considering the non-thread-safety of SimpleDateFormat that leads it to be probably the #1 cause of concurrency issues in Java programs. And which prevents reusing one instance across an entire application.
I sourced this here.