When to use Single method Interfaces in Java

When to use Single method Interfaces in Java

References

Reference NO 1

http://stackoverflow.com/questions/15200362/when-to-use-single-method-interfaces-in-java

Reference NO 2

http://stackoverflow.com/questions/2478763/number-of-methods-in-an-interface

Reference NO 3

http://www.javalobby.org/forums/thread.jspa?forumID=61&threadID=17239

Reference NO 4

http://java.dzone.com/articles/introduction-functional-1

Reference NO 5

http://docs.oracle.com/javase/specs/jls/se7/html/jls-9.html

Reference NO 6

http://www.informit.com/articles/article.aspx?p=331398

Reference NO 7

http://javarevisited.blogspot.com/2012/04/10-points-on-interface-in-java-with.html

Reference NO 8

http://tutorials.jenkov.com/java/interfaces.html