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Java forEach loop

Java provides a new method forEach() to iterate the elements. It is defined in Iterable and Stream interface. It is a default method defined in the Iterable interface. Collection classes which extends Iterable interface can use forEach loop to iterate elements.

This method takes a single parameter which is a functional interface. So, you can pass lambda expression as an argument.


forEach() Signature in Iterable Interface


Java 8 forEach() example 1

Output:

------------Iterating by passing lambda expression--------------
Football
Cricket
Chess
Hocky

Java 8 forEach() example 2

Output:

------------Iterating by passing method reference---------------
Football
Cricket
Chess
Hocky

Java Stream forEachOrdered() Method

Along with forEach() method, Java provides one more method forEachOrdered(). It is used to iterate elements in the order specified by the stream.

Singnature:


Java Stream forEachOrdered() Method Example

Output:

------------Iterating by passing lambda expression---------------
Football
Cricket
Chess
Hocky
------------Iterating by passing method reference---------------
Football
Cricket
Chess
Hocky
Next TopicJava 8 Collectors




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