1. Which of the following correctly declares a variable of type int in Java? Choose all that apply.

int[] a = new int[3];

none of these

int a = 0;

int[] a = 0;

int a = new int();

a = int(3);

int a;

2.Given the following declaration: String s = "Hi_Snakes!"; Evaluate the expression: s.charAt(3)

'o'

'_'

none of these

'D'

'Go'

'Go_'