Explore Java Lambdas through an engaging presentation featuring the "Mary Had a Little Lambda" game. Dive into language changes, lambda syntax, functional interfaces, and application development. Learn to generate methods, bind event handlers, and implement lambda expressions. Discover the power of the Streams API, including filtering, mapping, and reducing operations. Gain practical insights through visual examples and hands-on exercises in this informative 53-minute talk given at JUG Stuttgart.