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SDP-3

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Quiz on SDP-3, created by Aibat Karashev on 17/01/2017.
Aibat Karashev
Quiz by Aibat Karashev, updated more than 1 year ago
Aibat Karashev
Created by Aibat Karashev almost 8 years ago
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Resource summary

Question 1

Question
What will be the output of the program?<br>
Image:
d6319bf4-a4fc-4bdd-8769-4e26772d0d0b (image/jpeg)
Answer
  • Pine
  • Oak
  • Tree
  • Forest
  • Oops

Question 2

Question
Select how you would run your program to cause it to print: Arg is 2 <br>
Image:
b90506cc-7c37-4122-a7c2-743ed24fb9b0 (image/png)
Answer
  • java Myfile 2 2 2
  • java Myfile 1 2 2 3 4
  • java Myfile 1 3 2 2
  • java Myfile 1 2 2 2
  • java Myfile 0 1 2 3

Question 3

Question
What is the prototype of the default constructor?<br>
Image:
f73e3ec2-dcb4-4175-99cf-e2f1abdccdbe (image/jpeg)
Answer
  • Test()
  • Test
  • public Test()
  • public Test(void)
  • Test(void)

Question 4

Question
What is the widest valid returnType for methodA in line 3?<br>
Image:
f3ba7ac6-2fcb-43fd-af38-357f10496ec9 (image/jpeg)
Answer
  • int
  • long
  • byte
  • double
  • void

Question 5

Question
Which is valid in a class that extends class A?<br>
Image:
0cde34cb-6873-419b-8171-77c0b7aafda6 (image/jpeg)
Answer
  • public int method1(int a, int b) {return 0; }
  • private int method1(int a, int b) {return 0; }
  • protected static int method1(int a, int b) {return 0; }
  • public long method1(int a, int b) {return 0; }
  • public static int method1(int a, int b) {return 0; }

Question 6

Question
What will be the output of the program?<br>
Image:
9b18182c-b4e9-4365-bebb-a418b6a7247a (image/jpeg)
Answer
  • one two three four
  • one two three four one
  • four three two one
  • four one three two

Question 7

Question
What will be the output of the program?<br>
Image:
4ee8bd6a-eef5-483e-bfe3-ae6a6358b056 (image/jpeg)
Answer
  • AC
  • ACD
  • BD
  • ABCD
  • ABD

Question 8

Question
What will be the output of the program after the running program in such way :/> java Test red green blue?<br>
Image:
193bf7c0-17f7-46b8-b2da-5fcc79ac29e5 (image/jpeg)
Answer
  • baz =
  • baz = blue
  • baz = null
  • Runtime Exception
  • Compilation Error

Question 9

Question
What will be the output of the program? <br>
Image:
86d49820-c875-46ef-ac76-f8ef8674de2e (image/jpeg)
Answer
  • It will print the numbers from 0 to 19 sequentially
  • It will print the numbers from 1 to 20 sequentially
  • It will print the numbers from 0 to 19 but the order is not determined
  • It will print the numbers from 1 to 20 but the order is not determined
  • It will print the numbers from 0 to 9 two times, but the order is not determined

Question 10

Question
The following block of code creates a Thread using a Runnable target: <br> Which of the following classes can be used to create the target, so that the preceding code compiles correctly?
Image:
76486eb1-1fec-44fc-8542-1b8b3f13d63c (image/jpeg)
Answer
  • public class MyRunnable extends Runnable{public void run(){}}
  • public class MyRunnable extends Object{public void run(){}}
  • public class MyRunnable implements Runnable{public void run(){}}
  • public class MyRunnable implements Runnable{void run(){}}
  • public class MyRunnable implements Thread{void run(){}}

Question 11

Question
What will be the output of the program?<br>
Image:
342d07bb-b5c6-45e7-a2d6-1902ff3f43bd (image/jpeg)
Answer
  • AB
  • BC
  • BCD
  • ABC
  • ACD

Question 12

Question
Which of these will create and start this thread? <br>
Image:
6ffac0e2-2937-45d6-be23-1e6b3d7bacd9 (image/jpeg)
Answer
  • new Runnable(MyRunnable).start();
  • new Thread(MyRunnable).run();
  • new Thread(new MyRunnable()).start();
  • new MyRunnable().start();
  • new Runnable(MyRunnable).run();

Question 13

Question
What will be an output? <br>
Image:
dc33bb16-5848-4a5c-a358-07f9934b5d1a (image/png)
Answer
  • true true
  • true false
  • false true
  • false false
  • Runtime error will occur

Question 14

Question
What will be an output? <br>
Image:
242210f2-5f68-45c0-a936-79320bd20b41 (image/png)
Answer
  • 24
  • 30
  • 120
  • 720
  • Compilation Error

Question 15

Question
What will be an output? <br>
Image:
1005be61-20a9-42b2-9d0a-1e87b6f1ed6a (image/png)
Answer
  • 1
  • 0
  • 5
  • 15
  • Compilation Error
  • Runtime Error

Question 16

Question
What will be an output? <br>
Image:
be1eb1f2-e33b-49a0-9a6f-f273675f288b (image/png)
Answer
  • 1
  • 0
  • 12
  • 78
  • Compilation error
  • Runtime error

Question 17

Question
What will be the output of the program? <br>
Image:
f17320c2-7d9b-412c-8f38-6b8d15c026cd (image/png)
Answer
  • Got the exception 10
  • Got the exception e
  • Compilation error
  • Runtime error

Question 18

Question
What will be the output of the program? <br>
Image:
d1a4d177-2c20-41fe-95a8-c56e26efd413 (image/png)
Answer
  • Got the Test Exception
  • Inside finally block
  • Got the Test Exception <br> Inside finally block
  • Compilation error

Question 19

Question
What will be the output of the program? <br>
Image:
205bb419-2904-411e-9203-946467d1af37 (image/png)
Answer
  • Compilation error
  • Compiles and runs fine
  • Compiles fine but throws ArithmeticException at runtime

Question 20

Question
What will be the output of the program? <br>
Image:
26e64652-eb1c-4c97-905f-5816157b2a91 (image/png)
Answer
  • Caught base class exception
  • Caught derived class exception
  • Caught base class exception <br> Caught derived class exception
  • Compilation error because derived is not throwable
  • Compilation error because base class exception is caught before derived class

Question 21

Question
What will be the output of the program? <br>
Image:
2742dc37-974f-48d9-a310-ac749311db36 (image/png)
Answer
  • Compilation error
  • Divide by zero error
  • inside the finally block
  • a = 0
  • a=0 <br> Divide by zero block <br> inside the finally block

Question 22

Question
What will be the output of the program?<br>
Image:
834a97ea-ba96-4b4d-aaaa-3c3ceb82fa4e (image/png)
Answer
  • Compilation error
  • Runtime error
  • ArrayIndexOutOfBoundsException
  • ErrorCode is printed
  • Array is printed

Question 23

Question
What will be the output of the program? <br>
Image:
c45b0f26-ead4-44cb-a822-f5865333d929 (image/png)
Answer
  • Derived::show() called
  • Base::show() called
  • Compilation error
  • Runtime error

Question 24

Question
What will be the output of the program? <br>
Image:
622ba60f-b0ed-47e9-9f94-b0650660dbb4 (image/png)
Answer
  • Derived::show() called
  • Base::show() called
  • Compilation error
  • Runtime error

Question 25

Question
What will be the output of the program? <br>
Image:
6559a129-4793-42b8-8fc2-690390c14ef8 (image/png)
Answer
  • Base
  • Derived
  • Compilation error
  • Runtime error

Question 26

Question
What will be the output of the program? <br>
Image:
9c340ea4-6ef4-4f2f-ab0c-8e8b1aeace61 (image/png)
Answer
  • Compilation error in super.super.Print()
  • Grandparent’s print <br> Child’s Print()
  • Grandparent’s print <br> Parent’s Print <br> Child’s Print()
  • Runtime error

Question 27

Question
What will be the output of the program? <br>
Image:
a988ea6f-74e7-4b52-8c69-a7807a7900a9 (image/png)
Answer
  • Complex number is (10.0 + 15.0i)
  • Compilation error
  • Runtime error
  • Complex number is Complex@8e2fb5 (where 8e2fb5 is hash code of c)

Question 28

Question
What will be the output of the program? <br>
Image:
0baa1587-4e8b-436a-a888-26b51a42b08f (image/png)
Answer
  • 20
  • 0
  • Compilation error
  • Runtime error

Question 29

Question
What will be the output of the program? <br>
Image:
b003ed77-d853-4426-99ac-bc073ca01baa (image/png)
Answer
  • s1 == s2 is: true
  • s1 == s2 is: false
  • true
  • false
  • compilation error
  • runtime exception

Question 30

Question
What will be the output of the following program? <br>
Image:
43e894dd-8cff-4705-bbc7-5035324e54e4 (image/png)
Answer
  • BD
  • ABDE
  • BCDE
  • BCD
  • BDE
  • ABCE
  • ABCD
  • ABD

Question 31

Question
What will be the output of the following code? <br>
Image:
c20bf6e6-493c-4943-989a-66703434f3e0 (image/png)
Answer
  • hello caught finally after
  • hello throwit finally
  • hello throwit caught finally after
  • compilation fails
  • hello caught after
  • caught finally after

Question 32

Question
What will be the output of the program? <br>
Image:
7c2622fd-6cd1-478d-88af-9fec1d199553 (image/png)
Answer
  • finally
  • Compilation fails
  • exception finished
  • finally finished
  • finally exception finished
  • finally exception

Question 33

Question
What will be the output of the program? <br>
Image:
afaad4f4-080d-4010-b906-f990a763f6c3 (image/png)
Answer
  • ABCD
  • ACD
  • ABD
  • BCD
  • BC
  • BD
  • CD

Question 34

Question
What will be the output of the program? <br>
Image:
82e1cc52-2e84-4fd7-8c4a-230cb636fc3f (image/png)
Answer
  • Hello world
  • Hello world Finally executing
  • Finally executing
  • Nothing. The program will not compile because no exceptions are specified
  • Nothing. The program will not compile because no catch clauses are specified

Question 35

Question
What will be the output of the program? <br>
Image:
5c1ec8c1-01f3-4f82-abcd-f9eb2bab3448 (image/png)
Answer
  • Ex0 caught
  • Exception caught
  • Compilation fails on line 2
  • Compilation fails on line 9
  • Compilation fails on line 11

Question 36

Question
What line of code should replace the missing statement to make this program compile? <br>
Image:
69cce12a-3b42-47ff-a865-c092b916a54f (image/png)
Answer
  • import java.io.*;
  • import java.io.PrintWriter
  • include java.io.*;
  • no statement required

Question 37

Question
What will be the output of the program?<br>
Image:
2fd6bb6e-09dd-4fff-8860-e8c520662b84 (image/png)
Answer
  • 0
  • error
  • Compilation fails
  • An uncaught exception is thrown at runtime
  • No output
  • / by 0

Question 38

Question
Given <br> <b> Note: The keyword "instanceof" is use to check whether an object is of a particular type</b><br>What is the result?
Image:
c1ab4270-0c97-48f7-9706-e726f70fe359 (image/png)
Answer
  • Will produce output as false
  • Compilation fails due to error at line 3
  • Compilation fails due to error at line 4
  • Length of this array is 3
  • Will produce output a true

Question 39

Question
What will be the output? <br>
Image:
84ef5296-2610-48e5-af7d-16ccc85347df (image/png)
Answer
  • Got the Test Exception<br> Inside finally block
  • Inside finally block
  • Got the Test Exception
  • Compilation fails

Question 40

Question
What will be the output? <br>
Image:
a0c4d946-048f-4b62-ad62-13883facf385 (image/png)
Answer
  • Caught base class exception
  • Caught derived class exception
  • Compiler error because derived is not throwable
  • Compiler error because base class exception is caught before derived class

Question 41

Question
What is the output of the following code segment? <br>
Image:
8a5b8035-51b4-4539-a649-2e0cccb189bc (image/png)
Answer
  • A
  • B
  • C
  • D or lower

Question 42

Question
What are the values of I and product after this code is executed? <br>
Image:
ad887a89-afd9-4e88-a5b9-e965121dc095 (image/png)
Answer
  • 9 and 366
  • 9 and 336
  • 8 and 42
  • 8 and 336

Question 43

Question
What is the output of the following code fragment? <br>
Image:
cf75139b-088e-4756-8898-becae8ca3e26 (image/png)
Answer
  • Error
  • 2 times Hello
  • 3 times Hello
  • No output will be produced
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