Example - Iteration

I. Task
Iterate through each item of a collection.

• Go through all records
• For each record, change to readable format (use name for value)
• Print out readable format

II. Notes

• Java 7 - external iterator - for loop
• Java 8 - internal iterator -
  • ForEach (T -> void)
  • ForEach (Consumer<T>)

III. Java Codes

• Ex1_Iterate.java

IV. Results

• Ex1_Iterate.out.7
  => result from Java 7
• Ex1_Iterate.out.8
  => result from Java 8 stream (sequential)
• Ex1_Iterate.out.8b
  => result from Java 8 stream (basic step)
• Ex1_Iterate.out.8c
  => result from Java 8 stream -> forEach(Consumer)
• Ex1_Iterate.out.pc
  => result from Java 8 parallelStream -> forEach -> Collect
• Ex1_Iterate.out.pf
  => result from Java 8 parallelStream -> forEach (different order)