Given the following array: int[] intArr = {8, 16, 32, 64, 128}; Which two code fragments, independently, print each element in this array?

Question

Options

• Afor (int i : intArr) { System.out.print (intArr[i] + " "); }
• Bfor (int i : intArr) { System.out.print (i + " "); }
• Cfor (int i=0 : intArr) { System.out.print (intArr[i] + " "); i++; }
• Dfor (int i=0; i < intArr.length; i++) { System.out.print (i + " "); }
• Efor (int i=0; i < intArr.length; i++) { System.out.print (intArr[i] + " "); }
• Ffor (int i; i < intArr.length; i++) { System.out.print (intArr[i] + " "); }

• B
  89% (16)
• D
  6% (1)
• F
  6% (1)

Explanation

B and E are correct because they each correctly retrieve the actual element values from the array. In B, the enhanced for-each loop (for (int i : intArr)) assigns each array value directly to i on every iteration, so printing i gives 8 16 32 64 128. In E, the traditional for-loop uses i as an index (0–4), and intArr[i] correctly retrieves each element by position.

Why the distractors fail:

• A - In a for-each loop, i holds the value (8, 16, 32…), so intArr[i] tries to access index 8, 16, etc., causing an ArrayIndexOutOfBoundsException.
• C - for (int i=0 : intArr) is invalid syntax; the enhanced for-each loop does not support variable initialization with =.
• D - Uses the correct traditional loop structure, but prints i (the index: 0 1 2 3 4) instead of intArr[i] (the values).
• F - Declares i without initializing it; Java requires local variables to be initialized before use, causing a compile error.

Memory tip: Ask yourself "is i a value or an index?" - in a for-each loop i is the value (print it directly), while in a traditional for-loop i is an index (use it inside brackets).

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