Question

c# questions:

24.The counter variable in a for statement must be declared ___________.

a.first

b.second

c.third

d.fourth

39.A(n) ___________ variable cannot be referenced outside of the block in which it is declared.

a.scope

b.local

c.restricted

d.restricted global

e.global

54.Attempting to access a private member of a class outside that class ______________.

a.is a run-time error

b.is a syntax error

c.is a logic error

d.can be accomplished using IntelliSense

Answer 1

24 . The counter variable in a for statement must be declared _

a.first

for example: for(int i; i<n; i++)

If the variable is used without declaration it's a compile time error.

for( i; i<n; i++) will give error if int i; is not used before it.

39.A(n) ___________ variable cannot be referenced outside of the block in which it is declared.

b.local

A variable local to a block can only be accessed within it. Accessing it outside the block where it is defined will give a compile time error.

//if block

if(...){   

int i; //Scope of i starts

...

//Scope of i ends

}

54. Attempting to access a private member of a class outside that class ______________.

b.is a syntax error

A class private member can only be accessed by member functions or the friend functions.

No other object can access it. Else it is a compile time or syntax error.