Can someone please explain how this code outputs 2,9,12,3?
import java.util.*;
public class Exam4 {
public static void main(String[] args) {
int a = 3;
int b = Exam4.method2(a);
System.out.println(b);
Exam4.method1(a, b);
System.out.println(a);
}
public static void...