patterns

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java

Which design pattern is represented by the following code? List<String> strings = Arrays.asList("hello, ", "world", "!");

java

Which statements about the following code are correct ? (in some application): public class Singleton { private static Singleton singleton; public static Singleton getInstance() { if (singleton == null) { singleton = new Singleton(); } return singleton; } }

java

Using of which design pattern is demonstrated by the following code: FileInputStream in = new FileInputStream("test.dat"); BufferedInputStream bin = new BufferedInputStream(in);

java

What is the purpose of the design pattern Bridge?

java

What is the main difference between design patterns Decorator and Proxy.