What could be the output of the following program? class Main { public static void main(String[] args) [. { System.out.println(getNum()); } } public int getNum() return 12: 12 None of the above Compile Error Run-time Error What is the value of i that is printed? public class Sample { public static void main(String[] args) { int i; System.out.println(i); null Compile error Run-time error What will happen when you compile and run the following code? public class Test public static void main(String[] args){ int a = 0; whilela > 10 || a