Multiple Choice Question

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Submitted by c-admin on Tue, 05/28/2019 - 22:40

QID:

172

Type:

Multiple Choice Question

Category:

Java Programmer I

Tags:

Looping Constructs

Question:

What will the following program print?

class Test{
public static void main(String args[]){
int var = 20, i=0;
do{
while(true){
if( i++ &gt; var) break;
}
}while(i&lt;var--);
System.out.println(var);
}
}

Select 1 option

A. 19
B. 20
C. 21
D. 22
E. It will enter an infinite loop.

Answer and Explanation (Click to expand)

Answer:

Explanation:

When the first iteration of outer do-while loop starts, var is 20. Now, the inner loopvexecutes till i becomes 21.

Now, the condition for outer do-while is checked, while( 22 < 20 ), [i is 22 because of the last i++>var check], thereby making var 19. And as the condition is false, the outer loop also ends. So, 19 is printed.

Q&A Set:

Set 17

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