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Which of the following is not a wrapper class?
A) StringB) IntegerC) BooleanD) Character
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What modifiers may be used with an inner class that is a member of an outer class
A (non-local) inner class may be declared as public, protected, private, static, final, orabstract.
priyam
- Oct 14th, 2022
It can have any access modifiers public ,private,protected,default like any ordinary top level class.
jigyasa_sienna
- Jun 7th, 2009
Public can be used as it is the only access modifier which can access?any class or methods from any class or package.
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What do u mean by precompiled statement? What is the difference between Statement and PreparedStatement?
Akib Jabed
- Oct 31st, 2022
Since the query is passed at the time of implementation object creation of the preparedStatement net interface but not in the execute() method.
Hence, preparedStatement are also known as precompiled Statements.Sandhya14
- Apr 4th, 2008
A PreparedStatement is precompiled statement.It means PreparedStatement compiles the SQL Statement in the first run itself. Thus, if the Statement is preparedStatement, you can run the Statement ...
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Java was conceived by __________
A) MicrosoftB) OracleC) Sun MicrosystemD) Intel
Gangothri
- Oct 20th, 2022
Sun Microsystems
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Without main Method
How can we use method without using main method in JAVA?
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Which of the following are true? (Select multiple)
A) The Class class is the superclass of the Object class.B) The Object class is final.C) The Class class can be used to load other classes.D) The ClassLoader class can be used to load other classes.
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Which of the following statements accurately describe the use of access modifiers within a class definition? (Select multiple)
A) They can be applied to both data & methodsB) They must precede a class's data variables or methodsC) They can follow a class's data variables or methodsD) They can appear in any orderE) They must be applied to data variables first and then to methods
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What is the data type for the parameter of the sleep() method?
A) doubleB) intC) longD) float
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Which of the following is true?1) wait(),notify(),notifyall() are defined as final & can be called only from with in a synchronized method2) Among wait(),notify(),notifyall() the wait() method only throws IOException3) wait(),notify(),notifyall() & sleep() are methods of object class
A) 1B) 2 & 3C) 1 & 2D) 1 2 & 3
pdurbha
- Apr 21st, 2006
As far as I know wait() notify() and notifyAll() belong to the Object class and need to be called from a synchronized class. They can't be declared final since in that case they cannot be overridden i...
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Which of the following types of class members can be part of the internal part of a class? (Select multiple)
A) Public instance variablesB) Private instance variablesC) Public methodsD) Private methods
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Which of the following can you perform using the File class? (Select multiple)
A) Change the current directoryB) Return the name of the parent directoryC) Delete a fileD) Find if a file contains text or binary information
preethi
- Nov 12th, 2020
Change the current directory
Welabeau Cava
- Jan 26th, 2011
A) Change the current directoryB) Return the name of the parent directoryC) Delete a file
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Which of the following are true about the Error and Exception classes?
A) Both classes extend Throwable.B) The Error class is final and the Exception class is not.C) The Exception class is final and the Error is not.D) Both classes implement Throwable.
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Which of the following features are common to both Java & C++? (Select multiple)
A) The class declarationB) The access modifiersC) The encapsulation of data & methods with in objectsD) The use of pointers
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Which of the following statements correctly describes an interface?
A) It's a concrete classB) It's a superclassC) It's a type of abstract class
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When you read your e-mail, you are viewing _________ data
A) ActiveB) PassiveC) BothD) None of the above
Rahul
- Jan 13th, 2021
Passive
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State true or false :- For externalizable objects the class is solely responsible for the external format of its contents
A) TrueB) False
Himanshu Tyagi
- Dec 28th, 2020
True
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_____________ is the process by which one object acquires the properties of another object
A) EncapsulationB) ClassC) InheritenceD) Polymorphism
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You would use the ____ operator to create a single instance of a named class.
A) newB) dotC) equalsD) none of the above
Java Interview Questions
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