Java programming /* Method that returns the difference between the largest * and

Question

Java programming

/* Method that returns the difference between the largest
* and smallest elements of an array of doubles
*
*/

public class ArrayDifference
{
public static void main( String [] args )
{
    double [] array = { 72.3, 6.7, 12.6, 40.7, 21.8, 49.9 };

    System.out.print( "The elements are " );
    for ( int i = 0; i < array.length; i++ )
       System.out.print( array[i] + " " );
    System.out.println( );

    System.out.println( "The difference between the largest and "
                        + "smallest elements is "
                        + largestSmallestDifference( array ) );
}

// Insert your code here

}

Explanation / Answer

/* Method that returns the difference between the largest
* and smallest elements of an array of doubles
*
*/
public class ArrayDifference
{
public static void main( String [] args )
{
double [] array = { 72.3, 6.7, 12.6, 40.7, 21.8, 49.9 };
System.out.print( "The elements are " );
for ( int i = 0; i < array.length; i++ )
System.out.print( array[i] + " " );
System.out.println( );
System.out.println( "The difference between the largest and "
+ "smallest elements is "
+ largestSmallestDifference( array ) );
}
// Insert your code here

//method to calculate the largestSmallestDifference
/**
*
* @param array
* @return difference of largest and smallest
*/
private static double largestSmallestDifference(double[] array) {
   // TODO Auto-generated method stub
   double largest,smallest, diff = 0;//var to store values
  
   largest=array[0];//assigning largest as 1st element of the array
   smallest=array[0];//assigning smallest as 1st element of the array
  
   for(int i=0;i<array.length;i++){
       //if the largest is smaller than the current element, then make largest as the current element
       if(array[i]>largest){
           largest=array[i];
       }
       //if the smallest is greater than the current element, then make smallest as the current element
       if(array[i]<smallest){
           smallest=array[i];
       }
   }
   diff=largest-smallest;//calculates the diff
   return diff;//returns the diff
}
}

---------------output--------------
The elements are 72.3 6.7 12.6 40.7 21.8 49.9
The difference between the largest and smallest elements is 65.6
-----------------output-------------

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