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Possible Extensions One is an integrated user interface where the end user can view both the input document files and the output word list files. Another is the generation of different types of list. In the sample development, we count the number of occurences of each word. Instead, we can generate a list of positions where each word appears in ...

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The purpose of Step 2 testing is to verify the correct behavior of an InputHandler. We need to test both successful and unsuccessful cases. We must verify that the door is in fact opened when the valid information is entered. We must also verify that the error message is displayed when there’s an error in input. We should test invalid cases...

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Program Review Are all the possible cases handled? Are the input routines easy to use? Will it be better if we allow different formats for entering the date information? Possible Extensions Warn the user, say, by popping a warning window or ringing an alarm, when the due date is approaching. Provide a special form window to enter data (No...

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Program Completion Finish the describeRules method Remove all temporary statements Possible Extensions Allow the user to set her desired min and max for secret numbers Allow the user to set the number of guesses allowed Keep the score—the number of guesses made —while playing games and display the average score when the user quits the program

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Possible Extensions Morphing the object shape Changing the object color Drawing multiple objects Drawing scrolling text

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We will implement the describeProgram method We will format the monthly and total payments to two decimal places using DecimalFormat. Directory: Chapter4/Step5 Source Files (final version): LoanCalculator.java Loan.java

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We will add a program description We will format the monthly and total payments to two decimal places using DecimalFormat. Directory: Chapter3/Step4 Source File: Ch3LoanCalculator.java

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The work of a programmer is not done yet. Once the working program is developed, we perform a critical review and see if there are any missing features or possible improvements One suggestion Improve the initial prompt so the user knows the valid input format requires single spaces between the first, middle, and last names

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Much like building a skyscraper, we need a disciplined approach in developing complex software applications. Software engineering is the application of a systematic and disciplined approach to the development, testing, and maintenance of a program. In this class, we will learn how to apply sound software engineering principles when we develop sa...

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Java is a high-level object-oriented language developed by Sun Microsystems. Java’s clean design and wide availability make it an ideal language for teaching the fundamentals of computer programming.

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