Convert String[] with text to double[]

Question

I have an Arraylist that I want to convert to a double[] array. I first convert the Arraylist to a String []. I then try to convert the String[] to a double[] but fail in the p

Answer 1

Use this

 String[] str1 = new String[list1.size()];
 str1 = list1.toArray(str1);
 double[] doubleArray = new double[str1.length]
 int i=0;
 for(String s:str1){
    doubleArray[i] = Double.valueOf(s.trim());
    i++;
 }