CODEWITHSUNDEEP
javaarraysperformancesyntaxruntime
user6530185
user6530185

Reputation:

Is this the fastest way to print a 2d array?

In my previous question I found out how to print each array of a 2d array, now I finished this code below. I'd like to know if this is one / the fastest way of doing it? This should be in linear time because we have only if-statements and not nested for-loops (?)

If it's not, please tell me what would be the most efficient way?

public class Print{
    public static void main(String[] args){

        int[][] myArray = {{1,2,3,4},{5,6,7,8}};

        int i=0;
        System.out.print("[");
        for(int j=0; j<myArray[0].length; j++){
            System.out.print(myArray[i][j]);
            if(j != myArray[0].length-1){
                System.out.print(", ");
            }
            if(j == myArray[0].length-1){
                System.out.print("], ");
            }
        }
        int k=1;
        System.out.print("[");
        for(int j=0; j<myArray[1].length; j++){
            System.out.print(myArray[k][j]);
            if(j != myArray[1].length-1){
                System.out.print(", ");
            }
            if(j == myArray[1].length-1){
                System.out.print("]");
            }
        }   
    }
}

Output: [1, 2, 3, 4], [5, 6, 7, 8]

Edit: I'm not looking for a way to code this shorter. I'm rather looking for the speed of algorithm, the fastest.

Upvotes: 0

Views: 187

Answers (1)

Ihor Dobrovolskyi
Ihor Dobrovolskyi

Reputation: 1241

You can easily use the code like this:

int[][] myArray = {{1,2,3,4},{5,6,7,8}};
System.out.print(Arrays.deepToString(myArray));

It will be a lot faster.

Upvotes: 1

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