CS506-Midterm
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Which of the following feature provide facility for multiple inheritances:-
2 / 50
Which of the following is called ' pure abstract class ' ?
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4 / 50
Which of the following statement object is used to execute stored procedures?
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Which of the following stream is a filter stream?
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Map interface is derived from the Collection interface.
7 / 50
To create DataBaseMetaData object we write following line of code
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A collection can store..........
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JPanel and Applet use ________ as their default layout.
10 / 50
Exceptions must be handled while handling files otherwise it may lead to____?
11 / 50
DSN stands for _________
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Which of the following is a general purpose container?
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An abstract class --------------- instantiated.
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You want a class to have access to members of another class in the same package. Which is the most restrictive access that accomplishes this objective?
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A top level class without any modifier is accessible to
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A serializable class must implement the method(s)............
17 / 50
Event source can have --------- listeners registered on it.
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Which of the following function will be used to register event handler with events generator (button)?
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Aside from the Scanner class, which of the following class/es can be used for text file file input
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If we remove String array from main then program____________
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____________is/are the JSP Implicit Object(s).
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In Java an abstract class cannot be sub-classed
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Which of the following is used for inheritance in java?
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Which of the following stream read/write data in the form of bytes?
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Based on functionality, the streams can be categorized as________
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Which of the following method is used to execute INSERT, UPDATE and Delete SQL statements?
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What if the static modifier is removed from the signature of the main method?
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Which of the following belongs to a category of checked exception?
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Overloading is _______ whereas overriding is _____
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A top level class may have only the following access modifier.
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If we remove static from main then program __________
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Which of the following package needs to import while interacting with relational database?
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When recursive method is called to solve a problem, the method actually is capable of solving only the simpler case(s), or base case(s).
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Which of the following is true about AWT and SWING components?
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The relationship between class and interface is called ________
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Socket is a --------------communication channel between hosts.
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38 / 50
Which of the following method is used to execute SELECT SQL statements?
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HahMap takes key as a/an _________
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A final class can't be extended.
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CREATE, ALTER, DROP are _________ SQL statements.
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Which of the following is true about abstract class?
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When defining a method you must include a ___________ to declare any exception that might be thrown but is not caught in the method.
45 / 50
JavaBeans are?
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Which of the following package needs to be import while handling files?
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A serializable class must implement the method(s) _________.
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49 / 50
In Java garbage collection is done by_______________
50 / 50
In Java a final class must be sub-classed before it.
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