Question

Consider the following code segment.

int x = 1;
while ( /* missing code */ )
{
System (x + " ");
x = x + 2;
}

Consider the following possible replacements for /* missing code */.

I. x<6
II. x!=6
III. x<7

Which of the proposed replacements for /* missing code */ will cause the code segment to print only the values 1 3 5?

Answer 1

The correct condition for the while loops to print the values 1, 3, and 5 is 'x < 6'. The other conditions 'x != 6' and 'x < 7' will print 1, 3, 5, and 7, which is not the desired output.

Step-by-step explanation:

The student's question is about determining the correct condition for a while loop in a Java code snippet that ensures the loop prints the values 1, 3, and 5. When comparing the three proposed conditions:

• I. x < 6: This condition will cause the loop to terminate when x is no longer less than 6. Since x starts at 1 and increases by 2 with each iteration, it will print 1, 3, and 5 before stopping.
• II. x! = 6: This condition will allow the loop to run until x is 6, which would print 1, 3, 5, and 7 before stopping, which is not the desired output.
• III. x < 7: This condition will cause the loop to run until x is at least 7, which will print 1, 3, 5, and 7 before stopping, again, not the desired output.

Therefore, the correct replacement for /* missing code */ is I. x < 6, as it prints only the values 1, 3, and 5.