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Anyone looking for core Java classes online, Paid?
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Anonymous Quiz
10%
char
23%
boolean
62%
String
5%
float
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Forwarded from TechShiksha by Badkul Technology (admin)
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Anonymous Quiz
9%
No
88%
Yes
2%
I don't know ???
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Newly Joined Members subscribe to our channel to learn programming and crack written exams.
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Which of these method waits for the thread to terminate?
Anonymous Quiz
28%
stop
13%
join
10%
alive
31%
wait
18%
sleep
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ArrayList list = new ArrayList(); list.add("A"); list.ensureCapacity(3); System.out.println(list.size());
Anonymous Quiz
17%
0
26%
1
46%
3
10%
2
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What is the default value of a local variable in Java?
Anonymous Quiz
32%
0
43%
null
18%
undefined
7%
not set
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Which of these keywords can be used to prevent inheritance of a class ?
Anonymous Quiz
46%
final
11%
constant
30%
super
5%
stop
8%
class
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previous quiz has been deleted, as wrong option was marked as correct.
Correct answer was Equal
Correct answer was Equal
What is the purpose of a default constructor in Java?
Anonymous Quiz
35%
To provide a default value for an object
40%
To initialize instance variables with default values
20%
To call another constructor within the same class
5%
None of the above
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what are static blocks and static initalizers in Java ?
answer : Static blocks or static initializers are used to initalize static fields in java. we declare static blocks when we
want to intialize static fields in our class. Static blocks gets executed exactly once when the class is loaded
. Static blocks are executed even before the constructors are executed.
answer : Static blocks or static initializers are used to initalize static fields in java. we declare static blocks when we
want to intialize static fields in our class. Static blocks gets executed exactly once when the class is loaded
. Static blocks are executed even before the constructors are executed.
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