View Compilation Error

0_0_6254686_19294\Main.java:1: package jave.math does not exist
import jave.math.*;
^
0_0_6254686_19294\Main.java:15: array required, but int found
				a[i] = cin.nextInt();
				 ^
0_0_6254686_19294\Main.java:16: array required, but int found
				total += a[i];
				          ^
0_0_6254686_19294\Main.java:18: cannot find symbol
symbol  : class BigInteger
location: class Main
			BigInteger ans = BigInteger("1");
			^
0_0_6254686_19294\Main.java:18: cannot find symbol
symbol  : method BigInteger(java.lang.String)
location: class Main
			BigInteger ans = BigInteger("1");
			                 ^
0_0_6254686_19294\Main.java:22: array required, but int found
				for(int j = 2; j <= a[i]; ++j)
				                     ^
6 errors