Java 5: Enhanced for loops

Java 5 features
 Enhanced for Loop |   Varargs |   Static import |   Autoboxing and unboxing |   Enum types |   Generics |   Annotations |   By date 

Enhanced for loops is introduced in Java 5. This feature allows you to handle loops in a simple. In the example below we compare the new for loop with the older one! For more info click here to read Oracle’s explanation.

Example 1: Enhanced for loops code

What is the output of the following code?

public class EnhancedForLoop
{
  public static void main(String[] args)
  {
    String brands[] = {"Dell", "HP", "IBM"};
    // enhanced for loop
    for(String element: brands)
    {
      System.out.print(element + " ");
    }
    // older Java versions
    for(int i = 0; i < brands.length; i++)
    {
      System.out.print(brands[i] + " ");
    }
  }
}
Author: Sar Maroof

Answer explanation

The answer is simple. both loops write the same elements of the array brands to the standard output.

The correct answer is: Dell HP IBM Dell HP IBM.





Sar Maroof is a professional software development teacher, gives master classes and publishes technical articles. He is also an expert software developer and worked for several big as well as small companies and later as a freelancer.

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