It s a utility class with two sub classes. Each member function of the BookUtility and NumUtility will perform some certain utility action. As their name suggests, the BookUtility class will contain the utility methods for the book class and NumUtility class will contain general utility methods for performing different sort of mathematical manipulation on numerals. The use case of all the functions can be found after the class diagram.

Lab 03
......\build
......\build.xml
......\.....\built-jar.properties
......\.....\classes
......\.....\.......\lab
......\.....\.......\...\pkg03
......\.....\.......\...\.....\Application.class
......\.....\.......\...\.....\Book.class
......\.....\.......\...\.....\Bookutility.class
......\.....\.......\...\.....\Numutility.class
......\.....\.......\...\.....\Utility.class
......\.....\empty
......\.....\generated-sources
......\.....\.................\ap-source-output
......\.....\test
......\.....\....\classes
......\.....\....\.......\BookutilityTest.class
......\.....\....\.......\NumutilityTest.class
......\manifest.mf
......\nbproject
......\.........\build-impl.xml
......\.........\genfiles.properties
......\.........\private
......\.........\.......\private.properties
......\.........\.......\private.xml
......\.........\project.properties
......\.........\project.xml
......\src
......\...\lab
......\...\...\pkg03
......\...\...\.....\Application.java
......\...\...\.....\Book.java
......\...\...\.....\Bookutility.java
......\...\...\.....\Numutility.java
......\...\...\.....\Utility.java
......\test
......\....\BookutilityTest.java
......\....\NumutilityTest.java

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