Given the below program with control invariant assertion (a) What shall be written in (X) for the below program to display assertion error? (b) What shall be written in (V) in order to complete the assertion statement? class AssertionSwitchTest | public static void main(String[] args) { char operator = int operand) 5, operand2 6, result switch (operator) { case 'E': result operandl + operand2; break; ': result = operandi operand2; break; case '*': zeit = operandi operand2; break; case: xenis = operandi / operand2; break; 1 "Unknown operator: + operator