Question 1

If you write a class with no constructors; the compiler will automatically supplies a no-argument(default)constructors

technology programming languages

True
False

Answer

Correct Option: A

Question 2

constructors can be overloaded but can't be overridden and constructors cannot be inherited.

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True
False

Answer

Correct Option: A

Question 3

The access modifier of default constructor is not same as class modifier

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True
False

Answer

Correct Option: A

Question 4

If a constructor uses super, it must use it in the first line; otherwise, the compiler will complain.

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True
False

Answer

Correct Option: A

Question 5

What is true from the following?

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"X extends Y" is correct if and only if X is a class and Y is an interface
"X extends Y" is correct if and only if X and Y are either both classes or both interfaces
"X extends Y" is correct if and only if X is an interface and Y is a class
None of these

Answer

Correct Option: B

Question 6

A local variable with the same name as an instance variable

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shadowing
Coupling
Cohesion
None of the above

Answer

Correct Option: A

Question 7

Select the true statement from the below choices

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Interface can extend one or more interfaces
Interface can extend one or more class
Interface cannot implement a class or interface
All of the above

Answer

Correct Option: A

Question 8

State which stament is true?

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Cohesionn 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
None of these
Cohesion is the OO principle most closely associated with making sure that a class is designed witha single well focussed principle

Answer

Correct Option: D

Question 9

1) Class A has a Class D 2)Methods in Class A use public methods in Class B 3)Methods in class C use public methods in class A 4)Methods in class A use variables in class C. What is most likely true?

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Class D has low Cohesion
Class B has weak encapsulation
Class A has weak encapsulation
Class B has strong encapsulation

Answer

Correct Option: B

Question 10

Look at the code below and select the correct answer:#include main(){printf ("hello world");}

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Will not compile
Will compile without error but not run
Will compile with warnings but run ok
Will compile with warnings, but not run

Answer

Correct Option: C

Question 11

See the code below and select the correct answer: #include main() { int i; printf ("enter integer: "); scanf ("%d",&i); printf ("You have entered: %f ", i); return (0); }

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Will not compile
Will compile but not run
Will give an output of 1
Will give an output of 1.000000

Answer

Correct Option: B

Question 12

See the code below and select the correct answer: #include #include #include main() { clrscr(); int i; printf ("enter integer: "); scanf ("%d",&i); printf ("You have entered: %d ", i); getch(); return (0); }

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Will not compile
Will compile with warning, and run
Will compile but not run
Will provide an output 1

Answer

Correct Option: A

Question 13

The output of the above code is 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1

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True
False

Answer

Correct Option: A

Question 14

The code above will go into an infinite loop.

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True
False

Answer

Correct Option: B

Question 15

The code below will go into infinite loop: #include #include #include main() { int i=0, j=0; clrscr(); for (i=0; i<5;i++) { for (j=i; j<=0; j--) { printf ("1\t"); } printf("\n"); } getch(); return (0); }

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True
False

Answer

Correct Option: B

Question 16

Code: #include #include #include main() { int i=0, j=0; clrscr(); for (i=0; i<=5;i++) { for (j=0; j

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True
False

Answer

Correct Option: A

Question 17

Note the following code and then select the correct answer: #include main() { int i; printf ("enter integer: "); scanf ("%d",&i); printf ("You have entered: %f ", i); return (0); }

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Will not compile
Will compile with warnings, but run
Will compile without warning, but not run
Will give an output of 1

Answer

Correct Option: C

Question 18

Note the code below and select the correct answer: #include main() { printf ("hello world"); }

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Will not compile
Will compile without error or warning and run ok
Will compile without error or warning but not run
Will compile with warning but run ok

Answer

Correct Option: D

Question 19

static methods cannot be overridden to non-static methods.

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True
False

Answer

Correct Option: A

Question 20

we can not override a synchronized method as non-synchronized method.

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True
False

Answer

Correct Option: B

Description: programming languages Online Quiz - 252
Number of Questions: 20
Created by: Aliensbrain Bot
Tags: programming languages

programming languages Online Quiz - 252

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