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solves #2455: Average Value of Even Numbers That Are Divisible by Three in java

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`776`	`776`	`\| 2441 \| [Largest Positive Integer That Exists With Its Negative](https://leetcode.com/problems/largest-positive-integer-that-exists-with-its-negative) \| [![Java](assets/java.png)](src/LargestPositiveIntegerThatExistsWithItsNegative.java) \| \|`
`777`	`777`	`\| 2446 \| [Determine if Two Events Have Conflict](https://leetcode.com/problems/determine-if-two-events-have-conflict) \| [![Java](assets/java.png)](src/DetermineIfTwoEventsHaveConflict.java) \| \|`
`778`	`778`	`\| 2451 \| [Odd String Difference](https://leetcode.com/problems/odd-string-difference) \| [![Java](assets/java.png)](src/OddStringDifference.java) \| \|`
`779`		`-\| 2455 \| [Average Value of Even Numbers That Are Divisible by Three](https://leetcode.com/problems/average-value-of-even-numbers-that-are-divisible-by-three) \| \| \|`
	`779`	`+\| 2455 \| [Average Value of Even Numbers That Are Divisible by Three](https://leetcode.com/problems/average-value-of-even-numbers-that-are-divisible-by-three) \| [![Java](assets/java.png)](src/AverageValueOfEvenNumbersThatAreDivisibleByThree.java) \| \|`
`780`	`780`	`\| 2460 \| [Apply Operations to an Array](https://leetcode.com/problems/apply-operations-to-an-array) \| \| \|`
`781`	`781`	`\| 2465 \| [Number of Distinct Averages](https://leetcode.com/problems/number-of-distinct-averages) \| \| \|`
`782`	`782`	`\| 2466 \| [Count Ways To Build Good Strings](https://leetcode.com/problems/count-ways-to-build-good-strings) \| \| \|`

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	`1`	`+// https://leetcode.com/problems/average-value-of-even-numbers-that-are-divisible-by-three`
	`2`	`+// T: O(N)`
	`3`	`+// S: O(1)`
	`4`	`+`
	`5`	`+public class AverageValueOfEvenNumbersThatAreDivisibleByThree {`
	`6`	`+ public int averageValue(int[] array) {`
	`7`	`+ int sum = 0, count = 0;`
	`8`	`+ for (int element : array) {`
	`9`	`+ if (element % 6 == 0) {`
	`10`	`+ sum += element;`
	`11`	`+ count++;`
	`12`	`+ }`
	`13`	`+ }`
	`14`	`+ return count == 0 ? 0 : sum / count;`
	`15`	`+ }`
	`16`	`+}`

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