Question

Provide the Java code to compute the sum, average, maximum number and minimum number if I have a string sentence of double numbers. Assume that the length of the string sentence is not known. It can be of any length.

To split a string based on the comma character use the following.

String sentence = "A,B,C,D,E";

String[] stringsArray = receivedSentence.split(",");

Then stringsArray is an array of five elements such that:

stringsArray[0] = 'A'

stringsArray[1] = 'B'

stringsArray[2] = 'C'

stringsArray[3] = 'D'

stringsArray[4] = 'E'

stringsArray.length will equal 5.

Answer 1

package newone;

public class doubleStats {

   public static void main(String[] args) {
       String sentence = "1.1,4.5,6,7,12,-56,34.34,562.4,322";

       String[] stringsArray = sentence.split(",");
       double[] arr = new double[stringsArray.length];
       double max = Double.parseDouble(stringsArray[0]);
       double min = Double.parseDouble(stringsArray[0]);
       double n=0,total=0,avg;
       for(String s:stringsArray) {
           n+=1;
           double num = Double.parseDouble(s);
           total+=num;
           if(num>max)
               max=num;
           if(num<min)
               min=num;
       }
       avg = total/n;
       System.out.println("Total: "+total);
       System.out.println("Average: "+avg);
       System.out.println("Maximum: "+max);
       System.out.println("Minimum: "+min);

   }

}