Example - Filter

I. Task
Add filter while iterating through each item of a collection.

II. Notes

• Java 7 - if
• Java 8 -
  • Filter (T -> boolean)
  • Filter (Predicate<T>)

III. Java Codes

• Ex2_1_Filter.java
  => retrieve all records that are base forms and category are adverb
  • Field 2: category is "adv"
  • Field 3: inflection is "base"
• Ex2_2_Filters.java
  => retrieve all records that are base forms and categories are either adverb or adjective

IV. Results

• Ex2_1_Filter.out.7
  => result from Java 7 - if
• Ex2_1_Filter.out.8
  => result from Java 8 stream.filter (sequential)
• Ex2_1_Filter.out.8P
  => result from Java 8 stream.filter(Predicate)
• Ex2_1_Filter.out.8PP
  => result from Java 8 stream.filter(Predicates)
• Ex2_1_Filter.out.8p
  => result from Java 8 parallelStream -> filter (different order)
• Ex2_1_Filter.out.8pc
  => result from Java 8 stream -> filter -> collect

• Ex2_2_Filters.out.7
  => result from Java 7 - if
• Ex2_2_Filters.out.8
  => result from Java 8 stream -> filter
• Ex2_2_Filters.out.8P
  => result from Java 8 stream -> filter(Predicate)
• Ex2_2_Filters.out.8p
  => result from Java 8 parallelStream -> filter (different order)
• Ex2_2_Filters.out.8pc
  => result from Java 8 parallelStream -> filter -> collect