Question

Intro to JAVA see below:

-----------------------------------------------

Rewrite the algorithm for computing the maximum using an enhanced for loop. Complete the following code:

CODE:

import java.util.ArrayList;

public class ArrayListUtil
{
   /**
      Computes the maximum value of a nonempty array list.
      @param values a non-empty array list
      @return the largest value in the array list
   */
   public static double maximum(ArrayList<Double> values)
   {
      // Compute the largest value, using an enhanced for loop
      . . .
      for (. . . : . . .)
      {
         . . .
      }
   }
}

Answer 1

import java.util.ArrayList;

import java.util.Random;

public class ArrayListUtil {

public static void main(String[] args) {

// create instance of Random class

Random r = new Random();

  

ArrayList<Double> arrayList=new ArrayList<>();

//Creating ArrayList of 10 elements with random values

for(int i=0;i<10;i++)

{

arrayList.add((r.nextDouble()*100)); //multiply with 100 because it is generating too small values

}

//printing the arrayList

System.out.println(arrayList);

  

//printing the maximum number by calling the method maximum()

System.out.println("Maximum nuumber is : "maximum(arrayList));

}

public static double maximum(ArrayList<Double> values)

{

double max= values.get(0); //storing first element of ArrayList

for(double var :values) //enhanced for loop

{

if(var>max) //comparing the values

{

max=var; //saving the largest value in max variable

}

}

return max;

}

}

Output:

[62.687960432641695, 37.9760416525705, 64.93375388379197, 62.36734779294045, 84.4402779196424, 79.81372841881966, 78.46949647816666, 14.467514688378348, 46.86527059244102, 56.290937510586545]
Maximum nuumber is : 84.4402779196424