1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
romanna [79]
3 years ago
15

Java variable is the name of a Group of answer choices numeric data value stored in memory data value stored in memory that can

not change during the program's execution data value stored in memory that can change its value but cannot change its type during the program's execution data value stored in memory that can change both its value and its type during the program's execution data value or a class stored in memory that can change both its value and its type during the program's execution
Computers and Technology
1 answer:
artcher [175]3 years ago
5 0

Answer:

Java variable is the name of a group of data value stored in memory that can change its value but cannot change its type during the program's execution

Explanation:

Generally, a variable is a temporary location in the memory where data are stored in a computer program. Values in the variable can always be change during the course of program execution.

The equal sign ( = ) is use to assign and identify a variable. The value to be stored in the variable is always at the right of the equal sign, while the variable name is always at the left of the equal sign.

You might be interested in
Add the following 2's complement binary numbers. Also express the answer in decimal. a. 01+ 1011b. 11+ 01010101c. 0101+ 110d. 01
kenny6666 [7]

Answer:

(a) 01 + 1011

Convert the two numbers into their 4-bit representation.

=> 01 = 0001

=> 1011

Addition of the two numbers (in their 2's complement form) gives the following:

0 0 0 1       ------------------> + 1 (in decimal)

<u>1  0 1  1 </u>      ------------------> - 5 (in decimal)

<u>1  1  0 0 </u>    -------------------> - 4 (in decimal)

Explanation for (a)

<em>01 or 0001</em>

Since the most significant bit is 0 (leftmost bit), it shows that it is a positive number. Therefore, it can be directly converted to its decimal representation as follows:

0001 = 0 x 2^{3} + 0 x 2^{2} + 0 x 2^{1} + 1 x 2^{0} = 1

0001 is + 1 in decimal.

<em>1011</em>

Its most significant bit(MSB) is 1 showing that it is negative.

Flipping all its bits and adding 1 to the result, will convert it to it's positive counterpart.

i.e 1011 => 0100 + 1 = 0101.

Converting the result (0101) to decimal gives

0101 = 0 x 2^{3} + 1 x 2^{2} + 0 x 2^{1} + 1 x 2^{0} = 5

1011 is -5 in decimal

<em>01 + 1011 or 0001+ 1011 = 1100</em>

The result (1100), of the addition of the two numbers, is a negative number as the MSB is 1.

Convert it to it's positive counterpart.

i.e 1100 => 0011 + 1 = 0100.

Converting the result (0100) to decimal gives

0100 = 0 x 2^{3} + 1 x 2^{2} + 0 x 2^{1} + 0 x 2^{0} = 4

Therefore, the result, 1100 is -4 in decimal.

===================================================

(b) 11 + 01010101

Convert the two numbers into their 8-bit representation since one of them is in 8-bit.

PS: Taking 11, its MSB is 1 showing that it is a negative number. Also, it's 8-bit representation will mean pre-padding it with ones(1s) rather than zeros as follows. In other words, pre-padding a 2's complement  number is done using its sign bit.

=> 11 = 11111111

=> 01010101

Addition of the two numbers (in their 2's complement form) gives the following:

  1  1  1  1  1  1  1  1       ------------------> - 1 (in decimal)

<u>   0 1  0 1  0  1 0 1 </u>      ------------------> + 85 (in decimal)

<u>1 0 1  0 1  0  1 0 0</u>    ------------------->  + 84 (in decimal)

Discard the carry-out bit (1) making the result 01010100

Explanation for (b)

<em>11 or 11111111</em>

Its MSB is 1 showing that it is negative.

Convert it to it's positive counterpart.

11111111 => 00000000 + 1 = 00000001

Converting the result (00000001) to decimal gives 1

11 or 11111111 is  - 1 in decimal.

<em>01010101</em>

Its MSB is 0 showing that it is also positive. Now, convert to decimal

01010101 = 85

01010101 is + 85 in decimal.

<em>11111111 + 01010101 = 01010100</em>

The result (01010100), is also positive as the MSB is 0. Now, convert to decimal.

01010100 = 84

Therefore the result (01010100) is + 84 in decimal.

===================================================

(c) 0101 + 110

Convert the two numbers into their 4-bit representations.

=> 0101 = 0101

=> 110 = 1110

Addition of the two numbers (in their 2's complement form) gives the following:

     0 1 0 1       ------------------> + 5 (in decimal)

<u>      1  1 1  0 </u>      -----------------> - 2 (in decimal)

<u>   1 0 0 1  1 </u>    -------------------> + 3 (in decimal)

Dicard the carry-out bit (leftmost bit) to get 0011 as result.

Explanation for (c)

<em>0101</em>

Since the MSB is 0 (leftmost bit), it shows that it is a positive number. Now, convert to decimal.

0101 =  5

0101 is +5 in decimal.

<em>110 or 1110</em>

Its MSB is 1 showing that it is negative.

Convert it to it's positive counterpart.

i.e 1110 => 0001 + 1 = 0010.

Converting the result (0010) to decimal gives

0010 =  2

1110 is -2 in decimal

<em>0101 + 110 = 0101+ 1110 = 0011</em>

The result (0011), is a positive number as the MSB is 0.

Converting the result (0011) to decimal gives

0011 = 3

Therefore, the result, 0011 is 3 in decimal.

===================================================

(d) 01 + 10

Convert the two numbers into their 4-bit representation.

=> 01 = 0001

=> 10 = 1110

Addition of the two numbers (in their 2's complement form) gives the following:

0 0 0 1       ------------------> + 1 (in decimal)

<u>1  1  1  0 </u>      ------------------> - 2 (in decimal)

<u>1  1  1  1 </u>    -------------------> - 1 (in decimal)

Explanation for (d)

<em>01 or 0001</em>

Since the MSB is 0 (leftmost bit), it shows that it is a positive number. Now convert to decimal.

0001 = 1

0001 is + 1 in decimal.

<em>1110</em>

Its MSB is 1 showing that it is negative.

Convert it to it's positive counterpart.

i.e 1110 => 0001 + 1 = 0010.

Converting the result (0010) to decimal gives

0010  = 2

1110 is -2 in decimal

<em>01 + 1011 or 0001+ 1110 = 1111</em>

The result (1111), is a negative number as the MSB is 1.

Convert it to it's positive counterpart.

i.e 1111 => 0000 + 1 = 0001.

Converting the result (0001) to decimal gives

0001 = 1

Therefore, the result, 1111 is -1 in decimal.

7 0
4 years ago
How to download goose simulator the game for free<br><br>pls tell me
Hunter-Best [27]
You can’t do it without getting a virus
6 0
3 years ago
Read 2 more answers
Match the job titles to the tasks
bija089 [108]

creates storyboards based on clients’ needs- Animator


assesses proposals for airplane designs to determine if they meet standards- Aeronautical engineer


uses special equipment and techniques to capture images- Commercial Photographer


creates software code, graphics, and multimedia elements for websites- Webpage designer

5 0
3 years ago
Read 2 more answers
Most of the international operations in a computer use hexadecimal numbering. True Or False
Natalija [7]

Answer:

True

Explanation:

The hexadecimal numbering is the most used numeric system for international operations in a computer, in our daily life we use the decimal system but for the CPU use the byte or octet as a basic unit of memory, we need more than 10 digits, and the hexadecimal system has 16, in addition, the binary system is hard to understand.

8 0
4 years ago
A normal HDMI signal has a colour depth of 8 bits per each of RGB colour. The maximum number
Marysya12 [62]

Answer: B

Explanation:

if each color can be represented as 8 bits and you have 3 colors total that would mean you would need 24 bits to represent the entirety of the RGB spectrum. And each bit can either be on or off so you have two choices for each one. So the total amount of colors you can have for 8bit RGB would be 2^{24} which is 16,777,216.

6 0
3 years ago
Other questions:
  • Write the 8-bit signed-magnitude, two's complement, and ones' complement representations for each decimal number: +25, + 120, +
    11·1 answer
  • What division monitors the sale and registration of vehicles and vessels within the state?
    15·1 answer
  • When activated, an Excel object has all the features of an Excel
    8·2 answers
  • OCR Land is a theme park aimed at children and adults. Entrance tickets are sold online. An adult ticket to OCR Land costs £19.9
    7·1 answer
  • Which institution developed outside the limits of the written costitution of the united states ?
    14·1 answer
  • By
    7·1 answer
  • When using the protection options in Excel 2016, what does the Protect Workbook function do?
    8·2 answers
  • A developer calls you with a problem. He was trying to debug a new daemon and mistakenly placed it on the production machine ins
    6·1 answer
  • What is the best description of an unbound control?
    12·1 answer
  • Which popular tool is used in agile software development TCS?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!