Self-Review Exercises

  1. 7.1 Fill in the blanks in each of the following statements:

    1. A(n)              is a software component that can be accessed over a network.

    2.              refers to an architectural style for implementing web services—often called RESTful web services

    3. Classes from the              package process JSON data.

    4. To invoke a REST web service, you can use a URL to open a(n)             , which makes the HTTP request to the web service.

    5. A(n)              (package android.widget) displays a scrollable list of items.

    6. A(n)              is a button that floats over the user interface.

  2. 7.2 State whether each of the following is true or false. If false, explain why.

    1. Many of today’s most popular free and fee-based web services are ...

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