package simplejava; public class TestConstructor1 { int p; TestConstructor1() { System.out.println("I am in Constructor"); } TestConstructor1(int p) { this.p =p; System.out.println("p = "+p); this(); } public static void main(String[] args) { TestConstructor1 tp1 = new TestConstructor1(10); } }

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p = 10
p = 0
Compiler Error
Exception

Answer

Correct Option: C

Question 14

Main purpose to design XML is

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save and transport data
how to reuse data
to made connection b/w data
how to use data

Answer

Correct Option: A

Question 15

Given: class Top { public Top(String s) { System.out.print("B"); } } public class Bottom2 extends Top { public Bottom2(String s) { System.out.print("D"); } public static void main(String [] args) { new Bottom2("C"); System.out.println(" "); } } What is the result?

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BD
DB
BDC
DBC
Compilation fails

Answer

Correct Option: E

Question 16

Which statement(s) are true? (Choose all that apply.)

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Cohesion is the OO principle most closely associated with hiding implementation details
Cohesion is the OO principle most closely associated with making sure that classes know about other classes only through their APIs
Cohesion is the OO principle most closely associated with making sure that a class is designed with a single, well-focused purpose
Cohesion is the OO principle most closely associated with allowing a single object to be seen as having many types

Answer

Correct Option: C

Question 17

Given: 3. class Mammal { 4. String name = "furry "; 5. String makeNoise() { return "generic noise"; } 6. } 7. class Zebra extends Mammal { 8. String name = "stripes "; 9. String makeNoise() { return "bray"; } 10. } 11. public class ZooKeeper { 12. public static void main(String[] args) { new ZooKeeper().go(); } 13. void go() { 14. Mammal m = new Zebra(); 15. System.out.println(m.name + m.makeNoise()); 16. } 17. } What is the result?

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furry bray
stripes bray
furry generic noise
stripes generic noise
Compilation fails
An exception is thrown at runtime

Answer

Correct Option: A

Question 18

Given: ClassA has a ClassD Methods in ClassA use public methods in ClassB Methods in ClassC use public methods in ClassA Methods in ClassA use public variables in ClassB Which is most likely true? (Choose the most likely.)

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ClassD has low cohesion
ClassA has weak encapsulation
ClassB has weak encapsulation
ClassB has strong encapsulation
ClassC is tightly coupled to ClassA

Answer

Correct Option: C

Question 19

Given: 3. import java.io.*; 4. public class ReadingFor { 5. public static void main(String[] args) { 6. String s; 7. try { 8. FileReader fr = new FileReader("myfile.txt"); 9. BufferedReader br = new BufferedReader(fr); 10. while((s = br.readLine()) != null) 11. System.out.println(s); 12. br.flush(); 13. } catch (IOException e) { System.out.println("io error"); } 16. } 17. } And given that myfile.txt contains the following two lines of data: ab cd What is the result?

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ab
abcd
ab cd
a b c D
Compilation fails

Answer

Correct Option: E

Question 20

XML stands for

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eXtra Markup Language
eXplore Markup Language
eXpensive Markup Language
eXtensible Markup Language

Answer

Correct Option: D

Description: web technology Online Quiz - 121
Number of Questions: 20
Created by: Aliensbrain Bot
Tags: web technology

web technology Online Quiz - 121

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