Question

1) Which of the following is the name of a local variable in the Strange class below?

public class Strange{

public static final int MAX = 5;

public static void unknown(){

int number = 0;

for (int i = MAX; i >= 1; i--)

number += i * i;

System.out.println(number);

}

public static void main(String[] a){

unknown();

}

}

a) Strange

b)

int

c)

MAX

d)

number

e)

main

2) Which of the following is NOT a method of the Graphics object?

a)	getGraphics

b)

fillRect

c)

drawOval

d)

setColor

e)	drawString

3) Which of the following statements constructs an object?

a)	DrawingPanel panel = new DrawingPanel(200, 100);

b)	Scanner console = new Scanner(System.in);

c) Color purple = new Color(200, 0, 200);

d)	String name = "Homer Simpson";

e)	All of the above statements construct objects.

4) What is the correct syntax for declaring a class constant named BET_LIMIT?

a)	public BET_LIMIT = 1000;

b)	public final BET_LIMIT = 1000;

c)	public static final BET_LIMIT = 1000;

d)	public static final int BET_LIMIT = 1000;

e)	public static int BET_LIMIT = 1000;

5) Which of the operators listed below has the highest precedence? (Be able to list all operators in order of precedence for the test.)

a)	= (assignment)

b)	% (modulus)

c)	+ (addition)

d)	() (parentheses)

e)	None of the above -- all operators listed here have equal precedence

6) Which of the following are primitive data types in Java (mark all correct answers).

$\square$

int

$\square$

String

$\square$

boolean

$\square$

double

$\square$

private

7) Which of the following is the name of a data type in Java? Mark all that apply. (Recall that every variable is declared using a data type to specify the kind of information that can be stored in the variable.)

a)

char

b)

String

c)

float

d) class

e)

for

8) Enter the index value (a number) that identifies the first character in a String object.

9) The abs() method in the Math class is an overloaded method. How many different versions are there?

a)

2

b)

3

c)

4

d)

5

e)

8

10) What is the proper way to instantiate a DrawingPanel object?

a)	DrawingPanel dp;

b)	DrawingPanel dp = new DrawingPanel();

c)	DrawingPanel dp = new DrawingPanel;

d)	DrawingPanel dp = new DrawingPanel(500, 500);

Answer 1

1) Ans is: d - number

The variable 'number' is local variable which is accessible only in 'unknown()' method

2) Ans is: a - getGraphics

There is no such method called getGraphics is defined inside Graphics class

3) Ans is: e)All of the above statements construct objects.

4) Ans is: d)public static final int BET_LIMIT = 1000;

5) Ans is: d)() (parentheses)
Very first precedence is for () parenthesis and for rest the others are (% Modulus) then (+ Addition) and finaly (= assignment)

6) Ans are: int , boolean , double

7) Ans is: d)class

8) Ans is: 0

9) Ans is: c 4

Explanation: 
double abs(double d)
float abs(float f)
int abs(int i)
long abs(long lng)

10) Ans is: d)DrawingPanel dp = new DrawingPanel(500, 500);