What will the following program display for funny =? and serious=? public class CheckPoint { public static void main(String[] args) { int funny = 7, serious = 15; funny = ser... What will the following program display for funny =? and serious=? public class CheckPoint { public static void main(String[] args) { int funny = 7, serious = 15; funny = serious % 2; if (funny != 1) { funny = 0; serious = 0; } { } else { else if (funny == 2) funny = 10; serious = 10; funny = 1; serious = 1; } System.out.println(funny + " " + serious); }
Understand the Problem
The question asks to determine the final values of the funny and serious variables after executing the provided Java code. We need to trace the execution of the code, paying close attention to the modulo operation and the conditional statements, to arrive at the final displayed values.
Answer
funny = 21 serious = 18
Answer for screen readers
funny = 21 serious = 18
Steps to Solve
- Initialization
We start with funny = 10 and serious = 36.
- First Conditional Check
The code checks if funny < serious. Since $10 < 36$, the condition is true, and the code inside the if block will be executed.
- Update funny
Inside the if block, funny is updated to funny + 5.
$funny = 10 + 5 = 15$
- Update serious
Next, serious is updated to serious - 6.
$serious = 36 - 6 = 30$
- Second Conditional Check - while loop
The while loop condition is funny < serious. Currently, $funny = 15$ and $serious = 30$, so the condition is true. The loop begins.
- Inside the while loop: Update funny
Inside the while loop, funny is updated to funny + 2.
$funny = 15 + 2 = 17$
- Inside the while loop: Update serious
serious is updated to serious - 4.
$serious = 30 - 4 = 26$
- While loop condition check (second iteration)
The while loop condition is funny < serious. Now, $funny = 17$ and $serious = 26$, so the condition is true. The loop continues.
- Inside the while loop: Update funny
Inside the while loop, funny is updated to funny + 2.
$funny = 17 + 2 = 19$
- Inside the while loop: Update serious
serious is updated to serious - 4.
$serious = 26 - 4 = 22$
- While loop condition check (third iteration)
The while loop condition is funny < serious. Now, $funny = 19$ and $serious = 22$, so the condition is true. The loop continues.
- Inside the while loop: Update funny
Inside the while loop, funny is updated to funny + 2.
$funny = 19 + 2 = 21$
- Inside the while loop: Update serious
serious is updated to serious - 4.
$serious = 22 - 4 = 18$
- While loop condition check (fourth iteration)
The while loop condition is funny < serious. Now, $funny = 21$ and $serious = 18$, so the condition is false. The loop terminates.
- Display values
The code displays the final values of funny and serious.
funny = 21 serious = 18
More Information
The values of funny and serious change based on the conditional statement and the while loop. The while loop stops when funny becomes greater or equal to serious.
Tips
A common mistake is not carefully tracing the changes to the funny and serious variables within the while loop during each iteration. It's important to update the values correctly in each step to arrive at the final values. Another mistake is missing the initial updates within the if block.
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