Find the missing element in the array i.p 91 92 94 --- o.p 93

Find the missing element in the array
i.p
91 92 94
---
o.p
93

[coding]

import java.util.*;
import java.io.*;
class Main {
public static void main(String[] args)
{
// missing elements in a array
int []a={1, 4, 2, 3, 6};
int i, min=a[0], max=a[0], sum=0, val;
for(i=0;i<a.length;i++)
{
if(a[i]<min) min=a[i];
if(a[i]>max) max=a[i];
sum=sum+a[i];
}

System.out.println(val-sum);
}
}