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2 years ago

What is wrong with line 1?

Computers and Technology

1 answer:

Gelneren [198K]2 years ago

5 0

Answer:

The set is a object of the class 'H' and the setY method is a member of G class which is not called by the object of H class.

Explanation:

If a user calls the G function which is not a private by the help of H class objects then it can be called. It is because all the public and protected methods of A class can be accessed by the B class if B extends the A-class.
If any class is extended by the other class then the derived class holds the property of the base class and the public and protected method can be accessed by the help of a derived class object.
The derived class object can be created by the help of base class like written in the "line 1".
But the base class can not call the member of the derived class.

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(Java)Write a program that calculates and displays the conversion of an entered number of dollars into currency denominations—20

Nataly [62]

Answer:

Below!

Explanation:

This is the code I have. I am not sure what I am missing that it won't accept -

import java.util.Scanner;

class Dollars {

public static void main(String[] args) {

int numTwenties,numTens,numFives,numOnes,dollarAmount;

Scanner sc= new Scanner(System.in);

System.out.println("Please enter a dollar amount: ");

dollarAmount = sc.nextInt();

numTwenties = dollarAmount/20;

numTens = (dollarAmount - 20*numTwenties)/10;

numFives = (dollarAmount - (10*numTens + 20*numTwenties))/5;

numOnes = (dollarAmount - (10*numTens + 20*numTwenties + 5*numFives));

System.out.println(+ dollarAmount + " converted is" + numTwenties + " $20s, " + numTens + " $10s, " + numFives + " $5s, and " + numOnes + " $1s.");

}

This is what it is giving me -

Test CaseIncomplete

Dollars 598

Input598

OutputPlease enter a dollar amount: 598

598 converted is29 $20s, 1 $10s, 1 $5s, and 3 $1s.

Results

$598 converted is 29 $20s, 1 $10s, 1 $5s, and 3 $1s

Expected Output

$598 converted is 29 $20s, 1 $10s, 1 $5s, and 3 $1s

8 0

2 years ago

Suppose a computer has 16-bit instructions. The instruction set consists of 32 different operations. All instructions have an op

Kazeer [188]

Answer:

2^7= 128

Explanation:

An instruction format characterizes the diverse part of a guidance. The fundamental segments of an instruction are opcode and operands. Here are the various terms identified with guidance design: Instruction set size tells the absolute number of guidelines characterized in the processor. Opcode size is the quantity of bits involved by the opcode which is determined by taking log of guidance set size. Operand size is the quantity of bits involved by the operand. Guidance size is determined as total of bits involved by opcode and operands.

6 0

2 years ago

The process of checking data for validity and integrity before placing it in a data warehouse is called Group of answer choices

guajiro [1.7K]

Answer:

data cleaning

Explanation:

Data cleaning exemplifies the process which includes identifying the incorrect, or inaccurate data from the records. It further proceeds its function in correcting and replacing the correct data in the records or database. By adding information, by deleting incorrect information and modifying the incorrect information are some of the ways by which data cleaning is done.

7 0

2 years ago

You are asked to check your company’s configurations to determine if any filters should be built to stop certain ICMPv6 traffic.

DedPeter [7]

ICMPv6 is used by IPv6 nodes to report errors encountered in processing packets, and to perform other internet-layer functions, such as diagnostics. An Internet Control Message Protocol (ICMP) flood attack, also known as a Ping flood attack, is a common Denial-of-Service (DoS) attack in which an attacker attempts to overwhelm a targeted device with ICMP echo-requests.

Explanation:

Issues that are of concern which could be a problem include :

Denial-of-Service Attacks

ICMPv6 can be used to cause a denial of service (DoS) in a number of ways, including simply sending excessive numbers of ICMPv6 packets to destinations in the site and sending error messages that disrupt established communications by causing sessions to be dropped.

Probing

A major security consideration is preventing attackers from probing the site to determine the topology and identify hosts that might be vulnerable to attack. Carefully crafted but, often, malformed messages can be used to provoke ICMPv6 responses from hosts thereby informing attackers of potential targets for future attacks. However, the very large address space of IPv6 makes probing a less effective weapon as compared with IPv4 . Redirection Attacks

Redirection Attacks

A redirection attack could be used by a malicious sender to perform man-in-the-middle attacks or divert packets either to a malicious monitor or to cause DoS by blackholing the packets. These attacks would normally have to be carried out locally on a link using the Redirect message. Administrators need to decide if the improvement in efficiency from using Redirect messages is worth the risk of malicious use. Factors to consider include the physical security of the link and the complexity of addressing on the link

Renumbering Attacks

Spurious Renumbering messages can lead to the disruption of a site. Although Renumbering messages are required to be authenticated with IPsec, so that it is difficult to carry out such attacks in practice, they should not be allowed through a site boundary firewall. On the other hand, a site may employ multiple "layers" of firewalls.

Problems Resulting from ICMPv6 Transparency

Because some ICMPv6 error packets need to be passed through a firewall in both directions, malicious users can potentially use these messages to communicate between inside and outside, bypassing administrative inspection.

Packet types or specific circumstances in which ICMPv6 traffic could compromise network security :

Ping sweep — A type of attack that uses ICMP echo request messages to enumerate live hosts on a network.

Ping flood — Utilized to launch a denial of service attack (DoS), where the attacker sends ICMP requests in a rapid succession without waiting for the targeted system to respond.

ICMP tunneling — A method used to establish a covert communication channel between remote systems, most times between a client and a proxy. All communications are sent via ICMP requests and replies

Forged ICMP redirects — The attacker would send a ICMP redirect message, which informs a host of a direct path to a destination, to the victim that contains the IP addresses of the attacker’s system. This allows an attacker to compromise network traffic via a man-in-the-middle attack or cause a DoS.

8 0

2 years ago

Suppose you are given three data items that indicate a starting index in a list, an array of characters, and an array of link in

Artemon [7]

Answer:

see explaination

Explanation:

INCLUDE Irvine32.inc

;declare the variables

SPACE = 32

startIndex = 1

.data

statement BYTE "The correct sequence of array: ",0

; declare the chars('H','A','C','E','B','D','F','G')

chars BYTE 48h,41h,43h,45h,42h,44h,46h,47h

sizeOfArray = ($ - chars)

links DWORD 0,4,5,6,2,3,7,0

outputArray BYTE sizeOfArray DUP(?)

.code

main PROC

; assign starting index

mov eax,startIndex

; assign offset of array chars

mov ebx,OFFSET chars

; assign the size of the array

mov ecx, sizeOfArray

; assign the offset of array links

mov edi,OFFSET links

; assign the offset of new array

mov esi,OFFSET outputArray

; call the traverseLink procedure

call traverseLink

; display the characters of new array

mov edx,OFFSET statement

call writeString

; assign the offset of new array

mov esi,OFFSET outputArray

; assign the size of the array

mov ecx, sizeOfArray

; call the procedure printArray to print the ordered array

call printArray

exit

main ENDP

traverseLink PROC

forLoop:

; get the character at index eax

mov dl,[ebx+eax]

; assign it to new array

mov [esi] , dl

; get the value at the next index

mov eax,[edi+eax*4]

; goto next location of new array

inc esi

; repeat until ecx=0

loop forLoop

ret

traverseLink ENDP

printArray PROC

forLoop:

; get the character at index eax

mov al,[esi]

; print the character

call WriteChar

; increament esi to get next character

inc esi

; print the space character

mov al,SPACE

call WriteChar

loop forLoop

call Crlf

ret

printArray ENDP

END main

7 0

2 years ago