How do I fix this error: int cannot be converted to int[] (JAVA)

[CreepyPro]

Write a method named collapse that accepts an array of integers as a parameter and returns a new array where each pair of integers from the original array has been replaced by the sum of that pair. 

 

I have this so far, can someone explain me how to fix the error?

public static int collapse(int a[]){
    int a2[] = new int[a.length/2];
    if (a.length%2==0)    
        for (int i=0; i<a2.length;i=i+2)
            a2[i] = a[i] + a[i+1];
    else {
        for (int i=0; i<a2.length-1;i=i+2)
            a2[i] = a[i] + a[i+1];
        a2[a.length/2] = a[a.length];
    }
   return a2;
}

 

[minibois]

You are trying to return an int array, which is also the objective you outlined in your post, but in the header of the method you write 'int', instead of 'int[]'. The latter of which would allow you to return an int array with this method.

[Timotheus2]

Please try to actually read the error. It should include a line number (probably of the return statement). You declared the return type as int but are trying to return a int[].

 

[Enderman]

Your return type is int instead of int[]... so change the return type...

[vK 3 1 RON]

public static int[] collapse(int a[])

 

I don't do Java but C# is close enough - so I think that's what the other people were suggesting you change  (the thing in bold)