CSC 1301

Add parentheses to the following expressions to indicate how Java will interpret them. a % b / c % d + e

((a % b) / c )% d + e

Add parentheses to the following expressions to indicate how Java will interpret them. a * b * c - d / e

((a * b) * c) - (d / e)

Add parentheses to the following expressions to indicate how Java will interpret them. a - b - c * d / e

(a -b) - ((c * d)/ e)

Add parentheses to the following expressions to indicate how Java will interpret them. a / b + c - d * e

(a / b) + c - (d * e)

What is the operator for multiplication in Java?

*

What is the operator for addition in Java?

+

What is the operator for subtraction in Java?

-

What is the value and parameter of the expression? 4 / 8 - 1.5 Value = ? , Type = ?

-1.5 , double

What is the value and the parameter of the expression? 43 + 75 % 12 - 68 Value = ? , Type = ?

-22 , int

What is the operator for division in Java?

/

What are the two ways to make a comment in Java?

// ; /* and */

What value is assigned to discount? double discount; char code = 'b'; switch ( code ) { case 'a': case 'A': discount = 0.0; break; case 'b': case B: discount = 0.1; break; case 'c': case 'C': discount = 0.2; break; default: discount = 0.3; }

0.1

Write 3/4 in binary, using a "floating binary point".?

0.11

What value is assigned to discount? double discount; char code ='c' ; switch ( code ) { case 'A': discount = 0.0; case 'B': discount = 0.1; case 'C': discount = 0.2; default: discount = 0.3; }

0.3

Translate 255_10 base 10 to Binary using 16 bits

0000000011111111

What is the value and the parameter of the expression? 7 % 2 + 9 /5 -1 Value = ? , Type = ?

1 , int

What is the output of this program? Please account for the " " = 1 space class increment { public static void main(String args[]) { double var1 = 1 + 5; double var2= var1 / 4; int var3 = 1 +5; int var4 = var3 / 4; System.out.print(var2 + " " + var4); } }

1.5 1

What is the output of this program class binary { public static void main(String args []){ int num= 17; System.out.println(Integer.toBinaryString(num)); }

10001

Convert the Hexadecimal value of A01C to binary

1010000000011100

Convert the Hexadecimal value of ABB to binary

101010111011

Convert Decimal number 90 to Binary

1011010

What will be the following output of the code? int x = 5; int y = 6; System.out.println(x + y);

11

Convert the binary number (01011.101) to decimal

11.625

Convert the decimal number 6.74 to binary

110.11

Convert Decimal number 122 to Binary:

1111010

How does one decorate a 31-year-old's birthday cake with only five candles?

11111

Convert Decimal number 62 to Binary

111110

If a CPU mad its calculations using a group of 4 bits together, we get a maximum value of ?

15

What will the output be for the following code? int myNum = 15; System.out.println(myNum);

15

Convert the decimal number 476 to hexadecimal

1DC

Given the following method which returns a value: public static double average(int num1, int num2, int num3) { return ( num1 + num2 + num3) / 3.0; } System.out.println(average(1,2,3)); Output: ?

2.0

What will the output be for the following code? int myNum = 15; myNum = 20; System.out.println(myNum);

20

10101

21

Convert the Binary number 11101001 to Decimal:

233

Convert the binary value of 1110 1110 to decimal

238

What will be the output of the following program? public class Doubt{ public static void main(String[]){ int x = 20; int y = 25; if(++x < (y= y-=4) || (x= x+= 4) > y){ System.out.println(x+","+y); } } }

25,21

If we increase the numbers of bits the CPU uses to a grouping of 8 bits, we get a maximum value of ?

255

What will the output be for the following code? int myNum; myNum = 26; System.out.println(myNum);

26

Given the following method which returns a value: public static double average(int num1, int num2, int num3) { return ( num1 + num2 + num3) / 3.0; } System.out.println(average((1 + 2), (2 + 2), (2 + 3))); Output: ?

4.0

What is the value of sum2 and sum3 int sum1 = 100 + 50; int sum2 = sum1 + 250; int sum3 = sum2 + sum2;

400 ; 800

Convert the binary value of 0101 0100 to decimal

84

What is the value and parameter of the expression? 7 + 5 % 3 Value = ? , Type = ?

9 , Int

Convert 1011111 to decimal

95

What are the values of the inputs if output = 0 ? Not (A*B)

A=1, B=1

What output is produced by the segment of code show? public class WhoMe { public static void main(String args[]){ intx= 25; if(x==25) { System.out.print("BOBBA"); else { System.out.print("FAB"); } } }

BOBBA

What is the output produced by the segment of code: public class WhatAmI { public static void main(String[] args){ System.out.print("BOBO"); p3(); System.out.print("MELON"): p2(); } static pubilc void p1() { system.out.print("IS"); } static public void p2() { system.out.print("HEAD"); } static public void p3 () { p1(); System.out.print("A"); } }

BOBOISAMELONHEAD

What output is produced by the segment of code shown below: public class Who_Am_I{ public static void main(String args[]){ int x = 25; int(x/2 ==12){ System.out.print("BUFFY"); System.out.print("LOVES"); }else{ System.out.print("ZACK"): System.out.print("ISA"); } System.out.print("DIPPY"); } }

BUFFYLOVESDIPPY

What output is produced by the segment of code shown below: public class MY_Jeans{ public static void main(String args[]){ int x = 12; if(x<15) System.out.print("Blue"); }else System.out.print("Green"); System.out.print("Jeans"); } }

Blue

As it related to using the assignment operators show another equivalent way to write this expression: C%=A

C=C%A

This is an example of a _______ algorithim. 1. Reserve the variables double bill, must_Pay 2. Get the necessary information from the user get bill 3. Check the value of the bill and do the necessary calculations if bill > 100 must_pay=bill-bill*0.05 else must_pay=bill show must_pay

Conditional

How do we describe the behavior of gates and circuits? Please select the correct choice, then click "Submit": A. Boolean expressions B. Logic diagrams C. Truth tables D. All of the above

D (all of the above)

Study the code, and determine which call to sum() method is appropriate? Hint the (...) serves a wild card for all method arguments class Output { public stiatic int sum(int...x) { return; } static void main(String args[]) { sum(10); sum(10,20) sum(10,20,30); sum(10,20,30,40); } } A. only sum(10) B. only sum(10,20) C. only sum(10) & sum(10,20) D. all of the mentioned

D (all of the mentioned)

What does the operator, --, decrement do? Ex:--x;

Decrease the value of a variable by 1

What output is produced by the segment of code shown below: public class ilikeFries { public static void main(String args[]){ double Max = 12.7; if(Max>=12) { System.out.print("FRENCH"); } } }

FRENCH

System.out.println("Hawaii:" +5+" "+0)

Hawaii:5 0

What will be the following output of the code? String name = "John"; System.out.println("Hello " + name);

Hello John

Show the output produced by the following statement: System.out.println("If\"pigs\"/nhad\\wings");

If"pigs"/nhad\wings

What does the operator ++, increment, do? Ex: ++x;

Increases the value of a variable by 1

What will the output be for the following code? String name = "John"; System.out.println(name);

John

What will be the following output of the code? String firstName = "John "; String lastName = "Doe"; String fullName = firstName + lastName; System.out.println(fullName);

John Doe

Which logic gate does this truth table belong to? A B X 0 0 1 0 1 1 1 0 1 1 1 0

NAND Gate

What is the output produced by the segment of code: public class WhatIsThis { public static void main(String[] args){ int x = 12; if(x!=12){ System.out.print("YES"); } else System.out.print("NO"); } }

NO

Please evaluate the code then choice the correct output public class Program { public static void main(String[] args) { System.out.println("Print line"); System.out.print("A"); System.out.print("B"); System.out.println(); System.out.print("C"); } }

Print line \n AB \n C

This is an example of a_Algorithim Sum_three_numbers Prompt for three integers Read Value_1+Value_2,Value_3 total=Value_1+Value_2+Value_3 Dispaly total END

Pseudocode

What doe the operator %, modulus, do? Ex: x%y;

Returns the division remainder

What variable stores text, such as "Hello" and values are surrounded by double quotes?

String

Create a variable named carName and assign the value Volvo to it.

String carName = "Volvo";

Which of the possible declarations below is not correct String name ="Paul"; String char="abc", double processorSpeedInGHz= 3.2; double ramSizeInGB - 4; double price = 1650.45; char servicePlan = 'B'; boolean onSiteService = true;

String char = "abc";

Declare and assign a reasonable value to the following: your last initial: ex: p

String char = 'p';

What output is produced by the segment public static void main(String​[] args ){ System.out.print("W"); p( ); System.out.print( "Z");} static private void p( ){ System.out.print("X"); System.out.print( "Y"); }

WXYZ

What does the following code fragment write to the monitor? public class Doubt { public static void main(String s[]{ int sum = 21; if(sum!=20) { System.out.print("You win"); } else { System.out.print("You lose"); } System.out.println("the prize."); } }

You win the prize.

Please show the Output public class HelloWorld { public static void main(String[] args) { //escape sequence System.out.println("\\ // -=- \\ //"); } }

\//-=-\//

The input hexadecimal representation of 1110 is ? a) 21 b) 12 c) 22 d) 31

a

Add parentheses to the following expressions to indicate how Java will interpret them. a + -b * c - d

a + (-b) * c - d

Natural language is a set of English language constructs designed to resemble the statements in a programming language but that do no actually run on a computer. a) computers software b) pseudo-code c) Binary d) algorithms

b

Which of the following are legal variable names in Java bestFriend 7daysAWeek hello! TOTAL&CLST privateFIFTYSEVEN57 do

bestFriend, privateFIFTYSEVEN57, do

What variable stores values with two states: true or false

boolean

Declare and assign a reasonable value to the following: whether or not you had lunch today:

boolean ateLunch = true;

This method is use to control algorithm executes its instructions in a straight line from top to bottom and then stops. a) conditional b) algorithms c) seqeuntial d) iterative

c

Which of the following is not a binary number? a) 1111 b) 101 c) 11E d) 000

c

Class name should begin with a?

capital letter

What variable stores single characters, such as 'a' or 'B' and values are surrounded by single quotes?

char

Which variable declaration and initialization is incorrect? int myNum = 5; float myFloatNum = 5.99f; char myLetter = "D"; boolean myBool = true; String myText = 'Hello';

char ; String

The best definition of Computer Science is that it is the study of which of the following? a) computers b) software c) systems d) algortithims

d

Declare and assign a reasonable value to the following: the cost of gas per gallon: ex: $2.06

double gasPrice = 2.06;

What will be the output of the following program? public class ShortTest{ public static void main(String[] args){ boolean x = true; boolean y = false; if (x &&y) { System.out.println(true);} else{ System.out.println(false):} } }

false

true or false? Boolean expressions are more powerful than logic diagrams in expressing the processing of gates and circuits.

false

true or false? The NOR gate produces the opposite results of the XOR gate.

false

What variable stores floating point numbers, with decimals, such as 19.99 or -19.99?

float

What does the = operator do in the following line of code? x= 5;

initializes x as 5

What variable stores numbers(whole numbers), without decimals, such as 123 or -123?

int

Declare and assign a reasonable value to the following: your Grad Year: ex. 2022

int = 2022;

Declare and assign a reasonable value to the following: your waist size: ex: 32

int = 32;

A ___?____ is a program that executes compiled Java code on a specific platform.

java virtual machine

Which method can be defined only once in a program?

main method

What is wrong with the code? public class MyClass { public static void main(String[] args) { System.out.println("Hello World"); }

missing a }

A method declaration contains an access modifier, the name of the method, the the body of the method, and on other item. What is it?

result type

true or false? Logic diagrams and truth tables are equally powerful in expressing the processing of gates and circuits.

true

true or false? The output value of an AND gate when both inputs are 1 is equal to 1.

true

What are the three notational methods for describing the behavior of gates and circuits?

truth tables, logic diagrams, Boolean expressions