Computing sum of values in array

Question

The problem im getting is that with oddSum the value outputted is the same as evenSum, and the value for sum of all elements is 0.

I cant quite see where im going wrong

Answer 1

int temp = data[index]; 
data[index] = evenData[index]; 
evenData[index] = temp; 

Looking at your above lines, evenDate is empty and in second line you are setting your data array to be empty. You are repeating the same mistake in oddDate line as well.

Why don't you use just try the following?

    for(int index = 0; index < data.length; index++)
    { 
        if (data[index] % 2 == 0) { 
            int temp = data[index]; 
            evenData[index] = temp;

        } else { 
            int temp = data[index]; 
            oddData[index] = temp; } 
        } 
    }

    for(int evenIndex = 0; evenIndex < evenData.length; evenIndex++) 
    { 
        //since length of all 3 data,even, odd arrays are the same
        //you can put both sum operation in one for loop

        evenSum = evenData[evenIndex] + evenSum; 
        oddSum = oddData[evenIndex] + oddSum; 
        sum = data[evenIndex] + sum;  
    }

    System.out.print("Sum of even elements: " + evenSum); 
    //you have put evenSum for below odeUm printing in ur code
    System.out.print("Sum of odd elements: " + oddSum); 
    System.out.print("Sum of all elements: " + sum);