Objectives

• Prerequisites
  Before you begin this exercise, you need mastery of the following:
  Be able to define generic functions and classes in Java.
  Be able to follow good Java programming practices.
  Be able to use an integrated development environment for Java application development.
  

• Resources
  
  • Writing Generic Classes and Methods
  • Generics in the Java Programming Language
  • Lesson: Generics
  • Java tutorial: Introduction to Java Generics

• Download the Pair.java file.
• To do:
  • In Pair.java, modify the Pair class definition so that it will have two generic member variables, the key and the value.
  • Modify the staticPrint method so that it will take two arguments of the two generic types same as the two generic types declared in the Pair class definition.
  • Construct Pair 1 and Pair 2 using the variables given in Pair.java, and print them out using instancePrint and staticPrint.
  • Demo the output to the TA

Sample output:

instancePrint -- key: 123, value: 456
staticPrint -- key: 123, value: 456
instancePrint -- key: Apple, value: 2.4
staticPrint -- key: Apple, value: 2.4
instancePrint -- key: 4200, value: Thu Apr 07 11:05:28 HKT 2016
staticPrint -- key: 4200, value: Thu Apr 07 11:05:28 HKT 2016