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Questions and Answers
In the GradeBookTest.java program, the initial value of courseName is 'null'.
True
The GradeBookTest.java program uses a Scanner object to obtain input from a file.
False
The setCourseName method is used to assign a value to the courseName variable in the GradeBook class.
True
The displayMessage method is called before setting the course name in the GradeBook object.
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The GradeBookTest.java program creates a GradeBook object called myGradeBook.
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The GradeBookTest.java program prompts the user to enter the course name after displaying the initial value of courseName.
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The GradeBook class has a method called displayMessage that prints a welcome message along with the course name.
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In the GradeBookTest class, the main method is where GradeBook objects are created and initialized with course names.
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The GradeBook constructor is called with a string argument to specify the course name for each GradeBook object created.
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In the GradeBookTest class, the getCourseName method is used to display the initial value of the courseName for each GradeBook object.
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The GradeBookTest class initializes multiple GradeBook objects with different course names using a loop statement.
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The GradeBookTest class explicitly displays the course names of gradeBook1 and gradeBook2 after initializing them.
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The GradeBook class contains a method called setCourseName to retrieve the course name.
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Declaring instance variables as private is known as data hiding.
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Access Modifiers in Java are public, protected, and private.
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The GradeBook class in the given text has a method named displayMessage that displays a welcome message along with the course name.
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The return type of a method indicates the value returned by the method and is declared in the method body.
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GradeBook objects are constructed by setting the course name directly without using any methods.
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