Answer Posted / gang

public void getSecondMax(double[] arr){
double fmax, smax;
fmax=arr[0];
smax=arr[1];

for (int i = 1; i < arr.length; i++) {
if (arr[i]>fmax){
smax = fmax;
fmax = arr[i];
}
else if (arr[i]>smax)
smax = arr[i];


}

System.out.println("The 1st
highest="+fmax+"\t"+"The 2nd highest="+smax);
}

Note that it would not work if the array's size is only 1.

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