arrays testing from main method java

Question

I am having problems with arrays.

I have written a code to add the sum of all the numbers in an array and I have to test it from the main by calling on previous arrays. But I can't figure out where I am going wrong.

 Scanner stdin = new Scanner(System.in);
    double [] scores = new double[5];
    System.out.println(scores.length);

for(int i = 0; i < scores.length; i++)
    {
        System.out.println("Please enter " + i + "th array value");
        scores[i] = stdin.nextDouble();
    }


 double sums = sumArray(scores);
    System.out.println(sums);

 }
public static double sumArray( double[] dArray)
{
    double sum = 0;
    for(int i = 0; i <= dArray.length; i++)
    {
        sum = sum + dArray[i];
    }
    return (sum);
}
}

Can you post the error stack?? – cнŝdk Nov 12 '14 at 13:23 — cнŝdk, Nov 12 '14 at 13:23

score 2 · Answer 1 · answered Nov 12 '14 at 13:22

2

This part

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

must be like

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

If you share error, we can help much.

answered Nov 12 '14 at 13:22

Semih Eker

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That worked! Thank you so much, this is what it was saying:Exception in thread "main" java.lang.ArrayIndexOutOfBoundsException: 5 at r9.TestArray.sumArray(TestArray.java:54) – Amanda Merical Nov 12 '14 at 13:25
I also have to call an array whose type is Int, but that's not working because the method is of type double, is there anyway around this? – Amanda Merical Nov 12 '14 at 13:31
' int [] data = new int[25]; for(int i = 0; i < data.length; i++) { System.out.print(data[i] + " "); } – Amanda Merical Nov 12 '14 at 13:34
You should use generics if you have same functionality in different methods with different primitive data types. – Vikas Verma Nov 12 '14 at 13:35
If it is ok, could you accept my answer? – Semih Eker Dec 20 '14 at 01:30

arrays testing from main method java

1 Answers1