How can I add array elements in method?

Question

I have to input three array elements and then a method should calculate them and return the answer. I only have this :

boolean answer = false;   

final int ARRAY_SIZE = 3;
 int sum[] = new int [ARRAY_SIZE];

 for(int i = 0; i<sum.length;i++){

 sum[i]= Integer.parseInt(JOptionPane.showInputDialog("Please enter a number"));    

 }

 answer = one(sum);

 JOptionPane.showMessageDialog(null,"The sum of the elements is "+answer);
}  
public static boolean one(int[] nums){return(nums[0] + nums[1] + nums[2]);}

}

And what is your question or problem?

Vampire
– Vampire

2016-04-07 23:39:22 +00:00
Commented Apr 7, 2016 at 23:39 — Vampire
– Vampire, Commented Apr 7, 2016 at 23:39

sprinter · Accepted Answer · 2016-04-07 23:40:28Z

2

At the moment you are returning a boolean from your one method. You should be returning an int.

answered Apr 7, 2016 at 23:40

sprinter

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1 Comment

hDDen Over a year ago

I see, didn't even think of it.. Still loads to learn. Thank you :)

Andrej Istomin · Accepted Answer · 2016-04-07 23:41:53Z

1

Maybe my improvements will help you:

public static void main(String[] args) {
    final int ARRAY_SIZE = 3;
    int sum[] = new int[ARRAY_SIZE];
    for (int i = 0; i < sum.length; i++) {

        sum[i] = Integer.parseInt(JOptionPane.showInputDialog("Please enter a number"));

    }
    JOptionPane.showMessageDialog(null, "The sum of the elements is " + one(sum));
}

public static int one(int[] nums) {
    return (nums[0] + nums[1] + nums[2]);
}

answered Apr 7, 2016 at 23:41

Andrej Istomin

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1 Comment

hDDen Over a year ago

Works perfectly, I can see my mistake now. Thank you :)

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