Intro To Java

42 Questions I By Briitanii

Java Script test

Question Excerpt

1.	Another term for program is:

A.	Peopleware

Hardware

Software

Firmware

2.	The major components of a typical computer system consist of

A.	Input/output devices

B.	Main memory

C.	Secondary Storage

The CPU

E.	All of the above

3.	A byte is a collection of

four bits

a dollar

six bits

D.	eight bits

4.	A(n)______________is a special programming language used to write computer programs.

A.	programming language

B.	application

C.	operating system

D.	application

E.	pseudocode

Syntax is

A.	Words that have a special meaning in the programming language

B.	Rules that must be followed when writing a program

C.	symbols or words that perform operations

D.	punctuation

6.	Variables are:

A.	Symbolic names made up by the programmer whose values cannot be changed

B.	operators that perform operations on one or more operands

C.	symbolic names made up by the programmer that represent locations in the computers RAM

D.	reserved words

7.	A software entity that contains data and procedures is a(n)

object

method

class

program

8.	RAM is usually

A.	Secondary storage

B.	a volatile type of memory, used only for temporary storage

C.	a static type of memory, used only for temporary storage

D.	a static type of memory, used for permanent storage

E.	an input/output device

9.	A computer program is

A.	pseudocode

B.	main memory

C.	a set of instructions that enable the computer to solce a problem or perform a task

D.	a flow chart

10.

Key words are

A.	words or names defined by a programmer

B.	symbols or words that perform operations on one or more operands

C.	words that have a special meaning in the programming language

D.	the data names in your program

11.

_________ are used to indicate the end of a Java statement

periods

B.	semicolons

colons

asterisks

12.

If the following Java statements are executed, what will be displayedSystem.out.println("The top three winners are \n");System.out.println("Jody, the Giant \n");System.out.print("Buffy, the Dwarf");System.out.print("Adelle, the Albino");

A.	The top three winners are Jody, the Giant Buffy, the DwarfAdelle, the Albino

B.	The top three winners are Jody, the Giant\nBuffy, the DwarfAdelle, the Albino

C.	The top three winnders are Jody, the Giant\nBuffy, the DwarfAdelle, the Albino

D.	The top three winnders are Jody, the Giant Buffy, the Dwarf Adelle, the Albino

13.

A(n) _______ is a value that is written into the code of a program

A.	assignment statement

variable

literal

operator

14.

Which of the following is not a primitive data type?

float

short

string

long

15.

The boolean data type may contain values in the following range of values

A.	-128 to +127

B.	-32,768 to +32,767

C.	-2,198,284 to +2,198,283

D.	True/False

16.

Character literals are enclosed in _________; string literals are enclosed in_______.

A.	double quotes; double quotes

B.	single quotes; double quotes

C.	single quotes; single quotes

D.	double quotes; single quotes

17.

What is the result of the following statement?25/4+4*10%3

5.25

18.

Which of the following will correctly convert the data type, if x is an integer and y is a double?

A.	x = (int) y;

x=y;

C.	x = int y;

x = y;

19.

In the following Java statement what is the value of the variable, name?

John Doe

B.	The memory address where "John Doe" is located

C.	The memory address where name is located

name

20.

To display the output on the next line, you can use the println method or use the escape sequence _________, in the print method.

21.

What would be displayed as a result of the follwing code, assuming x has been declared an integer?x=578;System.out.print("There are " + x + "5 \n" + "hens in the hen house.");

A.	There are 583 hens in the hen house.

B.	There are x5\nhens in the hen house.

C.	There are 5785 hens in the hen house

D.	There are 5785 hens in the hen house.

22.

If x has been declared an integer, int x;, which of the following is invalid?

x=-58932

x=1,000;

x=592;

x=0;

23.

Given double r;, which of the following is invalid

A.	r=-9.4632E15;

r=2.9X106

C.	r=9.4632e15;

r=326.75

24.

Variables of the boolean data type are useful for

A.	working with small integers

B.	evaluating scientific notation

C.	evaluating true/false conditions

D.	working with very large integers

25.

What is the result of the following statement?17%3*2-12+15

105

26.

What will be displayed after the following statements have been executed? int x = 15, y = 20, z = 32; x *= y; y –= z; z% = 16; System.out.println(“x = ” + x + “, y = ” + y, “ z = ” +z);

A.	x=300,y=-12,z=0

B.	x=35,y=52,z=48

C.	x=15,y=20,z=32

D.	x=300,y=-12,z=2

27.

A(n) ____ is a variable whose content is read only and cannot be changed during the program’s execution of the program.

A.	named constant

literal

operator

D.	reserved word

28.

Which of the following expressions will check to see if x is less than or equal to y?

x>=y

x>y

29.

What will be the value of x after the following code is executed? int x = 75; int y = 60; if (x > y) x = x – y;

135

30.

What will be the value of ans after the following code has been executed? int x = 65; int y = 55; if (x >= y) int ans = x + y;

120

100

D.	No value, there is a syntax error

31.

What will be the value of ans after the following code has been executed? int x = 90, y = 55, ans = 10; if ( x == y); ans *= 2; a. 10 b. 145 c. 20 d. No value, there is a syntax error

32.

If chr is a character variable, which of the following if statements is correct? a. if (chr = “a”) b. if (chr == “a”) c. if (chr = ‘a’) d. if (chr == ‘a’)

33.

What will be the value of bonus after the following code is executed? int bonus, sales = 10000; if (sales < 5000) bonus = 200; else if (sales < 7500) bonus = 500; else if (sales < 10000) bonus = 750; else if (sales < 20000) bonus = 1000; else bonus = 1250; a. 200 b. 500 c. 750 d. 1000 e. 1250

34.

What would be the value of bonus after the following statements are executed? int bonus, sales = 85000; char dept = ‘S’; if (sales > 100000) if (dept == ‘R’) bonus = 2000; else bonus = 1500; else if (sales > 75000) if (dept == ‘R’) bonus = 1250; else bonus = 1000; else bonus = 0; a. 2000 b. 1500 c. 1250 d. 1000

35.

Which of the following is the correct boolean expression to test for: int x being a value between, but not including, 500 and 650, or int y not equal to 1000? a. ((x >= 500 && x <= 650) && (y != 1000)) b. ((x > 500 AND x < 650) OR !(y.equal(1000))) c. ((x > 500 && x < 650) || (y != 1000)) d. ((x < 500 && x > 650) || !(y == 1000))

36.

The expression in an if statement must evaluate to a. 0 or 1 b. +1 or –1 c. true or false d. T or F

37.

27. _____ operators are used to determine whether a specific relationship exists between two values. a. Arithmetic b. Relational c. Syntactical d. Assignment

38.

28. What is the value of x after the following code has been executed? int x = 75; int y = 90; if ( x != y) x += y; a. 75 b. 90 c. 15 d. 165

39.

Each byte is assigned to a unique number known as an address.

True

False

40.

The following truth table shows various combinations of the values true and false connected by a logical operator. Complete the table by answering T or F to indicate if the result of such a combination is true or false________ true && false________ true && true________ true || false________ false || !false________ !(true && false)________ !(!false)________ !(!true || false)

41.

A Java program must have at least one a. Class definition b. Variable c. Comment d. System.out.println(); statement