🔸 TLDR

You have 25 seconds. ⏱️

Without an IDE, what does this Java code print?

What is the output? ☕

▪️ A — 5:11

▪️ B — 6:11

▪️ C — 6:12

▪️ D — Infinite loop ♾️

Think about it before reading further. 😈

✅ Answer: B — 6:11

The trap is the combination of:

▪️ i++ → compare first, increment afterward

▪️ ++i → increment first, then use the value

▪️ continue inside a do-while → jumps to the condition check

▪️ break loop → immediately exits the labeled loop

The important moment happens when i == 1.

i++ == 1 is true, but i becomes 2 before continue.

The sum += ++i statement is therefore skipped for that iteration.

🔸 TAKEAWAYS

Java certification questions rarely require huge algorithms.

The difficulty often comes from evaluation order and control flow.

When you see:

▪️ prefix vs postfix operators

▪️ continue in a do-while

▪️ labels and break

…trace the variables statement by statement rather than trying to read the loop intuitively.

How many seconds did you need? ⏱️

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