1.

Which of the following are valid ways to declare an array?

A. int[] numbers = {1, 2, 3, 4, 5};

B. int[] numbers; numbers = new int[10];

C. int[] numbers = new int[10];

D. int[5] numbers = {1,2 ,3, 4, 5};

2.

Consider the following class:

class Employee { public int salary; public Employee(int annualSalary) { salary = annualSalary; } public Employee(int weeklySalary, int numberOfWeeks) { salary = weeklySalary * numberOfWeeks; } } 

Which of the following are valid ways to create an instance of this class?

A.	Employee e1 = new Employee(30000);

B.	Employee e2 = new Employee(500, 52);

C.	Employee e4 = new Employee("Joe Smith");

D.	Employee e3 = new Employee();

3.

Java provides file operations in which of the following?

A.	java.io.PrinterWriter.*

B.	java.util.*

C.

java.io.*

D.	java.io.util*

4.

Consider the following class:

class MyClass { private static int x = 20; private static int y; private static int z = 25; private int abc = 1000; public void setFields() { x = 3; y = 4; z = 5; abc += 1000; } public static void modFields() { x = 7; y = 9; z = 10; } }

Which of the following would produce an error if used in the Main method of a program that includes this class?

A. MyClass mc = new MyClass(); mc.modFields();

B. MyClass.setFields();

C. MyClass.modFields();

D. MyClass mc = new MyClass(); mc.setFields();