CODEWITHSUNDEEP
javaarrays
user3065567
user3065567

Reputation: 71

Make new int[] array or use loop to set every index to 0? Java

I'm making a yahtzee game in java, and I have a variable called frequencyCount which is an array keeping track of how many die there is of each one. I reset this array after each roll with a for loop setting each index to 0.

for(int i = 0; i < frequencyCount.length; i++) {
    frequencyCount[i] = 0;
}

But is there any problem with just creating a new array each time like this: 

frequencyCount = new int[6];

The reset method will be called 45 times per player per game.

Which way is best? Is it a problem to keep creating new arrays, or doesn't it matter since this is a small game?

Upvotes: 0

Views: 135

Answers (3)

Dima
Dima

Reputation: 8662

both ways are almost identical, new int[] also uses for loop to make all of them zero (optimized) but will throw the old array and make the GC work, so both ways almost identical

Upvotes: 1

A Parikh
A Parikh

Reputation: 166

I agree with Dima; both methods produce the same result. I would say to use the second because it requires fewer lines of code. There is no need to create new arrays when one will suffice.

Upvotes: 0

Bjarke Freund-Hansen
Bjarke Freund-Hansen

Reputation: 30138

In practice you will not see any difference, you shouldn't worry too much about performance in cases like this. Focus on keeping your code clean and readable, and I believe method no. 2 is more concise.

Upvotes: 5

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