Question21) Consider method Inds omethang below:
```
// Precondition: a.length 1s equal to b.length
public static boolean findsomething(int[] a, int[] b)
I
for(Int aValue ; a)
l
boolean Cound = Ialse;
for(lnt bValue: b)
l
1f(bValue == aValue)
found = truel
l
1f (l found)
return False।
l
rELUFN tEUG।
l
```
Method findBomething retums true only if...
(A) arrays a and b contaf identeal eloments in the amome order
(B) arays a and b contan identigal slementa in Fevers order
(C) arrays a and b confan none of the Bamo elements
(D) array a contains at least one eloment that is also in b
(1) Every slement of array a la also in b, and every eloment of array b is also in a
Studdy Solution
STEP 1
1. We have a method `findsomething` that takes two integer arrays `a` and `b` as input.
2. The method's precondition is that the lengths of `a` and `b` are equal.
3. We need to determine under what condition the method returns `true`.
STEP 2
1. Analyze the method's logic to understand its behavior.
2. Determine the condition under which the method returns `true`.
3. Match the condition with the given options.
STEP 3
The method iterates over each element in array `a` using a loop.
For each element `aValue` in `a`, it initializes a boolean variable `found` to `false`.
STEP 4
For each `aValue`, the method iterates over each element `bValue` in array `b`.
If any `bValue` is equal to `aValue`, it sets `found` to `true`.
STEP 5
After checking all elements in `b`, if `found` is still `false`, the method returns `false`.
If the loop completes without returning `false`, it returns `true`.
STEP 6
The method returns `true` only if every element in array `a` is found in array `b`.
STEP 7
The correct option is:
(E) Every element of array `a` is also in `b`, and every element of array `b` is also in `a`.
The method `findsomething` returns `true` only if:
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