Question

True or False?

a. int i = 0;

while(i <= 20);

{

i = i+5;

cout << i << " ";

}

The above loop is an infinite loop.

for(int i =5; i>=1 ; i++)

{

cout << i << endl;

}

The above loop is an infinite loop.

Answer 1

a. int i = 0;

while(i <= 20);

{

i = i+5;

cout << i << " ";

}

The above loop is an infinite loop. - TRUE.

[ Since there is a semicolon after while statement, while (i<=20); is equivalent to while(i<=20) { }. Even if there is no body to execute, doesn't mean that the loop terminates. Instead it will simply loop repeatedly over the conditional infinitely.]

b. for(int i =5; i>=1 ; i++)

{cout << i << endl;

}

The above loop is an infinite loop. - TRUE [ i is initialised to 5. Everytime i is incremented by one and hence it always satisties the condition i>=1]