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2 years ago

The ListIterator interface

Computers and Technology

1 answer:

Katyanochek1 [597]2 years ago

4 0

Answer:

b. adds to Iterator the ability to move backwards in the collection

Explanation:

In Java programming, the ListIterator interface adds to Iterator the ability to be bidirectional i.e move backwards and forward in the collection and it is a sub-interface of the Iterator interface.

The ListIterator interface makes it possible to modify any list during iteration and determine its position in the list.

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Mnenie [13.5K]

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2 years ago

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Your website is currently at position 5 in organic search. On a monthly basis you currently get on average 5,432 clicks and 32 c

Natalka [10]

Answer:

Answered

Explanation:

This one is worth if I can get more number of clicks and the conversions.

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3 years ago

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kozerog [31]

I think I am not sure that it is probably b

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3 years ago

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When do you use a for loop instead of a while loop? (There may be more than one answer.)

statuscvo [17]

Answer:

- You know how many times you want the loop to run.

- When there is a defined start and end.

Explanation:

Required:

When to use for instead of while loop?

First, it should be noted that both for loop and while loop are used for iteration. However, depending on the scenario; there is preference on one to the other.

The basic syntax of for loop is:

$for(start;end;condition)\{\}$

The condition could either be increment or decrement

The basic syntax of while loop is:

$while(condition)\{\}$

The condition could be any condition whatsoever

Analyzing the options one after the other.

1. How many times the loop to run.

The for loop is preferred here because of the simplicity of the for loop.

2. & 3. Both the for and while loops are used for code repetition and to perform number calculations

4. Defined start and end.

From the syntax of the for loop

$for(start;end;condition)\{\}$

A for loop has a definite start and end in its basic syntax and is more preferable to use instead of a while loop.

Hence, 1 & 4 answer the question

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2 years ago

16. Budget Analysis Write a program that asks the user to enter the amount that he or she has budgeted for a month. A loop shoul

strojnjashka [21]

Answer:

import java.util.Scanner;

public class num8 {

public static void main(String[] args) {

Scanner in = new Scanner(System.in);

System.out.println("Enter month's budget");

double monthBudget = in.nextDouble();

double totalExpenses = 0.0;

double n;

do{

System.out.println("Enter expenses Enter zero to stop");

n = in.nextDouble();

totalExpenses += n;

}while(n>0);

System.out.println("Total expenses is "+totalExpenses);

System.out.println("The amount over your budget is "+ Math.abs(monthBudget-totalExpenses));

}

Explanation:

Using Java programming language
Prompt user for month's budget
Use Scanner class to receive and store the amount entered in a variable
Use a do while loop to continuously request user to enter amount of expenses
Use a variable totalExpenses to add up all the expenses inside the do while loop
Terminate the loop when user enters 0 as amount.
Subtract totalExpenses from monthBudget and display the difference as the amount over the budget

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2 years ago