Java ForEach Lambda Example

Java ForEach Lambda Example.java

	/**
	 * Example of Java's Stream API - ForEach
	 * @author jonbonso
	 * @param args
	 */
	public static void main(String... args) {
		
		System.out.println("Iterate using the traditional for loop..."); 
		int[] numArray = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10};
		
		for (int i=0; i<numArray.length; i++) {
			System.out.print(numArray[i] + " ");
		}
		
		System.out.println("\n\nIterate using Stream ForEach... "); 
		Stream<Integer> numStream = Stream.of(1, 2, 3, 4, 5, 6, 7, 8, 9, 10);
		
		// Uses Stream's forEach to iterate the given collection
		// notably, it is using the lambda expression ( -> )  
		numStream.forEach( 
			num -> System.out.print(num + " ") 
		);
	}