Java Matematik Hesabı Programlama

public class DizininIkinciEnBuyukDeger{
    public static int ikinciEnBuyuk(int[] a, int total){
        int temp;
        for (int i = 0; i < total; i++){
            for (int j = i + 1; j < total; j++){
                if (a[i] > a[j]){
                    temp = a[i]; 
                    a[i] = a[j]; 
                    a[j] = temp;
                } 
            } 
        } 
       return a[total-2];
   }

   public static void main(String args[]){
    int a[]={7, 8, 5, 9, 13, 17};
    System.out.println(ikinciEnBuyuk(a, a.length));   
}}

import java.util.Arrays;
public class DizininIkinciEnBuyukDeger{
    public static int ikinciEnBuyuk(int[] a, int total){
        Arrays.sort(a);
        return a[total-2];
    }

    public static void main(String args[]){
        int a[]={7, 8, 5, 9, 13, 17};
        System.out.println(ikinciEnBuyuk(a, a.length));
}}