1) Which allows you to define one interface and have multiple implementations?
a. Encapsulation
b. Inheritance
c. Polymorphism
d. None of the above
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Answer
Explanation
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ANSWER: Polymorphism
Explanation:
No explanation is available for this question!
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2) Which data type has this Minimum and Maximum value from 3.4e-038 to 3.4e+038?
a. long
b. Int
c. Byte
d. Float
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Answer
Explanation
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ANSWER: Float
Explanation:
No explanation is available for this question!
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3) The CharArrayWriter class is not used to write data to multiple files
a. True
b. False
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Answer
Explanation
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ANSWER: False
Explanation:
No explanation is available for this question!
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4) Many threads at a time can run in a single process
a. True
b. False
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Answer
Explanation
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ANSWER: False
Explanation:
No explanation is available for this question!
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5) Which containers are used to keep the class name space compartmentalized?
a. Packages
b. Applet
c. Browser
d. None of the above
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Answer
Explanation
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ANSWER: Packages
Explanation:
No explanation is available for this question!
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6) Which method compares the given object to 'this' object?
a. public boolean equals(Object obj)
b. public final void notifyAll()
c. public final void notify()
d. public final ClassgetClass()
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Answer
Explanation
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ANSWER: public boolean equals(Object obj)
Explanation:
No explanation is available for this question!
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7) Exception Handling is a mechanism to handle runtime errors
a. True
b. False
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Answer
Explanation
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ANSWER: True
Explanation:
No explanation is available for this question!
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8) Which is a non-static method having the same name as its class?
a. Field
b. Method
c. Constructor
d. None of the above
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Answer
Explanation
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ANSWER: Constructor
Explanation:
No explanation is available for this question!
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9) If a class has multiple methods by same name but different parameters, it is known as?
a. Constructor overloading
b. Method overloading
c. Operator overloading
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Answer
Explanation
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ANSWER: Method overloading
Explanation:
No explanation is available for this question!
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10) Local inner class can access non-final local variable
a. True
b. False
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Answer
Explanation
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ANSWER: False
Explanation:
No explanation is available for this question!
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11) Which of the following JDBC drivers is known as a partially java driver?
a. JDBC-ODBC bridge driver
b. Native-API driver
c. Network Protocol driver
d. Thin driver
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Answer
Explanation
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ANSWER: Native-API driver
Explanation:
No explanation is available for this question!
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12) Which are the examples of Application Server?
a. Apache
b. Tomcat
c. JBoss
d. Weblogic
e. Both C & D
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Answer
Explanation
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ANSWER: Both C & D
Explanation:
No explanation is available for this question!
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13) Hibernate is an?
a. Open Source
b. Lightweight
c. ORM
d. All mentioned above
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Answer
Explanation
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ANSWER: All mentioned above
Explanation:
No explanation is available for this question!
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14) How many core components does the Model-View-Controller pattern in Struts2 have?
a. 4
b. 5
c. 6
d. 3
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Answer
Explanation
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ANSWER: 5
Explanation:
No explanation is available for this question!
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15) Which type of instances retain no data or conversational state for a specific client?
a. Message-Driven Bean
b. Session Bean
c. Entity Bean
d. None of the above
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Answer
Explanation
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ANSWER: Message-Driven Bean
Explanation:
No explanation is available for this question!
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16) What is the built on top of the socket programming?
a. EJB
b. RMI
c. Both A & B
d. None of the above
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Answer
Explanation
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ANSWER: RMI
Explanation:
No explanation is available for this question!
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17) Which models do the JDBC API support for the database access?
a. Two-tier models
b. Three-tier models
c. Both A & B
d. None of the above
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Answer
Explanation
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ANSWER: Both A & B
Explanation:
No explanation is available for this question!
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18) Which applet java.awt.component class provides the life cycle method?
a. public void paint(Graphics g)
b. public void destroy()
c. public void stop()
d. public void init()
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Answer
Explanation
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ANSWER: public void paint(Graphics g)
Explanation:
No explanation is available for this question!
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19) Where can the event handling code be written?
a. Same class
b. Other class
c. Anonymous class
d. All mentioned above
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Answer
Explanation
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ANSWER: All mentioned above
Explanation:
No explanation is available for this question!
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20) Which package acts as an object -oriented wrapper around most common databases provided by java?
a. JDBC
b. ODBC
c. None of the above
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Answer
Explanation
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ANSWER: JDBC
Explanation:
No explanation is available for this question!
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21) XML is designed to store data and _____.
a. Design
b. Verify
c. Transport
d. Both A & B
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Answer
Explanation
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ANSWER: Transport
Explanation:
No explanation is available for this question!
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22) 22. XML documents must contain a root element; this element is "the parent" of all other elements
a. True
b. False
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Answer
Explanation
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ANSWER: True
Explanation:
No explanation is available for this question!
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23) Which are the XML Syntax rules?
a. All XML Elements Must Have a Closing Tag
b. XML Tags are not Case Sensitive
c. XML Elements Must be Properly Nested
d. Both A & C
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Answer
Explanation
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ANSWER: Both A & C
Explanation:
No explanation is available for this question!
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24) The URLConnection class can be used to read and write data to the specified resource referred by the URL
a. True
b. False
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Answer
Explanation
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ANSWER: True
Explanation:
No explanation is available for this question!
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25) The client in socket programming must know which informations?
a. IPaddress of Server
b. Port number
c. Both A & B
d. None of the above
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Answer
Explanation
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ANSWER: Both A & B
Explanation:
No explanation is available for this question!
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