This is my code. It shows an error when I create an array of `BigInteger` and try to assign a value.

```
package test;
import java.math.*;
import java.lang.*;
import java.util.*;

public class Test {

    public static void main(String[] args) {

        BigInteger[] coef =  new BigInteger[78];
        int a=24;
        coef[a]=676557656534345345654645654654645645645645665656567; // Error comes here why
        System.out.println(coef[a]);
    }
}

```