Sawaal
2
Q:

main() {

int i;

printf("%d",scanf("%d",&i)); // value 10 is given as input here

}

A) 1 B) 2
C) 3 D) 4

Answer:   A) 1



Explanation:

Scanf returns number of items successfully read and not 1/0. Here 10 is given as input which should have been scanned successfully. So number of items read is 1.

Subject: Java
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Answer & Explanation Answer: C) "X extends Y" is correct if X and Y are either both classes or both interfaces

Explanation:

A is incorrect because classes implement interfaces, they don't extend them. B is incorrect because interfaces only "inherit from" other interfaces. D is incorrect based on the preceding rules.

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Answer & Explanation Answer: A) Transcient

Explanation:

If you mark an instance variable as transient, you're telling the JVM to skip (ignore) this variable when you attempt to serialize the object containing it.

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The keyword which indicates that a method can be accessed by only one thread at a time is

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Answer & Explanation Answer: B) Synchronized

Explanation:

The synchronized keyword indicates that a method can be accessed by only one thread at a time

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In a single virtual machine, the Java programming language passes arguments by

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Answer & Explanation Answer: B) Value

Explanation:

In single virtual machine,JVM passes arguments only by value.

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Which of the following is not used for commenting in java?

A) // B) /* */
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Explanation:
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Which of the following is not the other name of attriibute?

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C) instance D) Data filed
 
Answer & Explanation Answer: C) instance

Explanation:

Instance is an object not an attribute

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There is one default constructor in every class.

A) The above statement is true B) The above statement is false
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Answer & Explanation Answer: A) The above statement is true

Explanation:

There will always be a default constructor in every class 

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Client code having direct access to internal data is called

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