Wrap-Up

This chapter introduced J2SE 5.0's new generics capability. You learned how to declare generic methods and classes. You learned how J2SE 5.0 achieves backwards compatibility via raw types. You also learned how to use wildcards in a generic method or a generic class. In the next chapter, we demonstrate the interfaces, classes and algorithms of the Java collections framework. As you will see, the collections presented all use the generics capabilties you learned here.