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Tip of the Day
Language: Java
Expertise: Advanced
Sep 14, 2009

WEBINAR:

On-Demand

Building the Right Environment to Support AI, Machine Learning and Deep Learning


Achieve Syntax Brevity with Anonymous Classes and Instance Initializers

The first listing here, which may look more familiar, is considerably longer than the second listing, even though they're essentially equivalent.

Listing 1.
List friends = new ArrayList();
friends.add("Ben");
friends.add("Kiran");
friends.add("....");

You can replace all the code in Listing 1 with an anonymous class that uses an instance initializer as shown in Listing 2.

Listing 2.
new ArrayList(){{add("Ben");add("Kiran");add("....");}};
Abdul Salam
 
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