Primitives, Strings and Operators →mediumMultiple SelectObjective-mapped

1Z0-811 Primitives, Strings and Operators Practice Question

Which three of the following code snippets produce the output '5'?

⚠ Common exam trap

The trap here is that candidates often forget that `+` with a `String` operand triggers concatenation, not arithmetic, leading them to incorrectly select options A or D as producing `5`.

Answer choices

Why each option matters

Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.

Correct answer & explanation

✓

System.out.println(2 + 3);

The expression `2 + 3` performs integer addition, resulting in `5`, which is then passed to `System.out.println` and printed as the string representation of the integer `5`. Option C is correct because the string literal `"5"` is printed directly. Option E is correct because the integer literal `5` is printed as its string representation.

Answer analysis

Option-by-option breakdown

For each option: why learners choose it and why it is or isn't the right answer here.

✗
System.out.println(2 + "3");
Why it's wrong here
Concatenation gives "23".
✓
System.out.println(2 + 3);
Why this is correct
Prints 5 as int.
✓
System.out.println("5");
Why this is correct
Prints the string "5".
✗
System.out.println("2" + 3);
Why it's wrong here
Concatenation gives "23".
✓
System.out.println(5);
Why this is correct
Prints 5 as string.

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1Z0-811 Primitives, Strings and Operators Practice Question

Why each option matters

Option-by-option breakdown

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