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CS 1331 Exam 2 with accurate detailed solutions

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CS 1331 Exam 2 with accurate detailed solutions

Institution
CS 1331
Course
CS 1331

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CS 1331 Exam 3 with accurate |!! |!! |!! |!! |!! |!!




detailed solutions |!!




Static Type - correct answer✔✔another word for Declared Type
|!! |!! |!! |!! |!! |!! |!! |!!




Dynamic Type - correct answer✔✔another word for Object Type; the actual
|!! |!! |!! |!! |!! |!! |!! |!! |!! |!!




class that follows the new operator when an Object is instantiated
|!! |!! |!! |!! |!! |!! |!! |!! |!! |!! |!!




True, fails is-a test (Dog is NOT a Poodle), produces a ClassCastException -
|!! |!! |!! |!! |!! |!! |!! |!! |!! |!! |!! |!!




correct answer✔✔T/F: The following code produces a runtime error
|!! |!! |!! |!! |!! |!! |!! |!! |!!




Dog dg = new Dog("name", 1);
|!! |!! |!! |!! |!!




((Poodle)dg).enterDogShow();



False, you can legally (syntax) cast an object up or down its inheritance
|!! |!! |!! |!! |!! |!! |!! |!! |!! |!! |!! |!! |!!




tree as long as the target type has the variable or method being accessed
|!! |!! |!! |!! |!! |!! |!! |!! |!! |!! |!! |!! |!!




- correct answer✔✔T/F: The following code produces a compiler error
|!! |!! |!! |!! |!! |!! |!! |!! |!! |!!




Dog dg = new Dog("name", 1);
|!! |!! |!! |!! |!!




((Poodle)dg).enterDogShow();



Runtime - correct answer✔✔Dynamic binding, process of matching a
|!! |!! |!! |!! |!! |!! |!! |!! |!!




method call in a statement to its actual definition, occurs at...
|!! |!! |!! |!! |!! |!! |!! |!! |!! |!!




JVM - correct answer✔✔The _____ tries to find a method that can handle a
|!! |!! |!! |!! |!! |!! |!! |!! |!! |!! |!! |!! |!! |!!




thrown exception |!!




Unchecked - correct answer✔✔Classes in the RuntimeException hierarchy
|!! |!! |!! |!! |!! |!! |!! |!!




(includes subclasses) are known as [checked/unchecked] exceptions
|!! |!! |!! |!! |!! |!!

, Checked - correct answer✔✔Classes outside the RuntimeException
|!! |!! |!! |!! |!! |!! |!!




hierarchy (includes subclasses) are known as [checked/unchecked]
|!! |!! |!! |!! |!! |!! |!!




exceptions



True (the code will not compile with the error: "FileNotFoundException;
|!! |!! |!! |!! |!! |!! |!! |!! |!! |!!




must be caught or declared to be thrown") - correct answer✔✔T/F: You
|!! |!! |!! |!! |!! |!! |!! |!! |!! |!! |!! |!!




cannot compile code to read a file without having a try/except catch for it.
|!! |!! |!! |!! |!! |!! |!! |!! |!! |!! |!! |!! |!!




Whitespace - correct answer✔✔By default, the Scanner uses ______
|!! |!! |!! |!! |!! |!! |!! |!! |!!




delimiter when tokenizing data. |!! |!! |!!




java.io - correct answer✔✔File is a class in the ______ package
|!! |!! |!! |!! |!! |!! |!! |!! |!! |!!




Throwable - correct answer✔✔The Error and Exception classes are direct
|!! |!! |!! |!! |!! |!! |!! |!! |!! |!!




subclasses of... |!!




False - correct answer✔✔T/F: The top of the call stack is always going to
|!! |!! |!! |!! |!! |!! |!! |!! |!! |!! |!! |!! |!! |!!




be the main method.
|!! |!! |!!




First - correct answer✔✔If an exception is thrown, the JVM will execute the
|!! |!! |!! |!! |!! |!! |!! |!! |!! |!! |!! |!!




______ catch block with a parameter type that matches the object's type.
|!! |!! |!! |!! |!! |!! |!! |!! |!! |!! |!! |!!




True - correct answer✔✔T/F: The finally block is also executed if no
|!! |!! |!! |!! |!! |!! |!! |!! |!! |!! |!! |!!




exceptions are thrown. |!! |!!




implementors - correct answer✔✔Classes being used by an interface are |!! |!! |!! |!! |!! |!! |!! |!! |!! |!!




called...
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Institution
CS 1331
Course
CS 1331

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Uploaded on
August 13, 2025
Number of pages
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Written in
2025/2026
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