With a(n) ____ structure, you perform an action or task, and then you perform the next action in order.

Write a method called swapPairs that switches the order of values in an ArrayList of strings in a pairwise fashion. Your method

arsen [322]

Answer:

import java.util.ArrayList;
public class Main {
public static void main(String[] args) {
ArrayList<String> strList =new ArrayList<String>();
strList.add("to");
strList.add("be");
strList.add("or");
strList.add("not");
strList.add("to");
strList.add("be");
strList.add("hamlet");
swapPairs(strList);
System.out.println(strList);
}
public static void swapPairs(ArrayList<String> list){
for(int i=0; i < list.size()-1; i+=2){
String temp = list.get(i);
list.set(i, list.get(i+1));
list.set(i+1, temp);
}
}
}

Explanation:

Firstly, let's create a method swapPairs that take one ArrayList (Line 18). In the method, use a for-loop to traverse through each item in the ArrayList and swap the items between the current items at index-i and at index-i+1 (Line 19-22). The index-i is incremented by two in next loop and therefore the next swapping will proceed with third and fourth items and so forth.

In the main program, create a sample ArrayList (Line 5-12) and then test the method (Line 14) and print the output (Line 15). We shall get [be, to, not, or, be, to, hamlet].

7 0

2 years ago

Direct Mapped Cache. Memory is byte addressable. Fill in the missing fields based upon the properties of a direct-mapped cache.

xz_007 [3.2K]

The question given is incomplete and by finding it on internet i found the complete question as follows:

Direct Mapped Cache.

Memory is byte addressable

Fill in the missing fields based upon the properties of a direct-mapped cache. Click on "Select" to access the list of possible answers Main Memory Size Cache Size Block Size Number of Tag Bits 3 1) 16 KiB 128 KiB 256 B 20 2) 32 GiB 32 KiB 1 KiB 3) 64 MiB 512 KiB 1 KiB Select] 4 KiB 4) 16 GiB 10 Select ] Select ] 5) 10 64 MiB [ Select ] 6) Select] 512 KiB 7

For convenience, the table form of the question is attached in the image below.

Answers of blanks:

1. 3 bits

2. 20 bits

3. 64 MB

4. 16 MB

5. 64 KB

6. 64 MB

Explanation:

Following is the solution for question step-by-step:

Part 1:

No. of Tag bits = No. of bits to represent

Tag bits = Main memory - cache size bits -------- (A)

Given:

Main memory = 128 KB = $2^7 * 2^{10} = 2^{17}$

Cache Memory = 16 KB = $2^4 * 2^{10}= 2^{14}$

Putting values in A:

Tag bits = 17 - 14 = 3 bits

Part 2:

Tag bits = Main memory - cache size bits -------- (A)

Given:

Main memory = 32 GB = $2^5 * 2^{30} = 2^{35}$

Cache Memory = 16 KB = $2^5 * 2^{10}= 2^{15}$

Putting values in A:

Tag bits = 35 - 15 = 20 bits

Part 3:

Given:

Tag bits = 7

Cache Memory = 512 KB = $2^9 * 2^{10} = 2^{19}$

So from equation A

7 = Main Memory size - 19

Main Memory = 7 + 19

Main memory = 26

OR

Main Memory = $2^6 * 2^{20} = 64 MB$

Part 4:

Given that:

Main Memory Size = $2^4 * 2^{30} = 2^{34}$

Tag bits = 10

Cache Memory Bits = 34 - 10 = 24

Cache Memory Size = $2^4 * 2^{20} = 16 MB$

Part 5:

Given that:

Main Memory Size = 64 MB = $2^6 * 2^{20}$

Tag bits = 10

Cache Memory Bits = 26 - 10 = 16

Cache Memory Size = $2^{16} = 2^6 * 2^{10} = 64 KB$

Part 6:

Cache Memory = 512 KB = $2^9 * 2^{10} = 2^{19}$

Tag Bits = 7

Main Memory Bits = 19 + 7 = 26

Main Memory size = $2^{26} = 2^6 * 2^20 = 64 MB$

i hope it will help you!

6 0

2 years ago

In which drawer can you set certain lights to light up on your micro:bit?

zheka24 [161]

Answer:

In which drawer can yu set certain lights t light up n yur micr:bit?

Explanation:

4 0

2 years ago

Read 2 more answers

Generally speaking, manufacturing overhead is applied to production by means of a __________ __________ __________, which is com

Mkey [24]

Answer: Predetermined Overhead Rate, Estimated Manufacturing Overhead and Annual Activity Level.

Explanation:

Generally speaking, manufacturing overhead is applied to production by means of a predetermined overhead rate, which is computed under the general formula of dividing estimated overhead rate by some measure of the annual activity level.

A predetermined overhead rate is usually calculated at the beginning of an accounting period. It is calculated by dividing the estimated manufacturing overhead by an activity driver (e.g machine hours).

5 0

2 years ago

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What task can a user accomplish by customizing theme colors?

Stolb23 [73]

Answer:

D

Explanation:

I took the test

3 0

2 years ago

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