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Drupady [299]
3 years ago
14

public interface Displayable { void display(); } public class Picture implements Displayable { private int size; public void inc

reaseSize() { size ; } public void decreaseSize() { size--; } public void display() { System.out.println(size); } public void display(int value) { System.out.println(value * size); } }What method invocation can be used to complete the code segment below?Displayable picture = new Picture();picture.______________;a. display()b. decreaseSize()c. display(5)d. increaseSize()
Computers and Technology
1 answer:
Tamiku [17]3 years ago
4 0

Answer:

a. display()

Explanation:

Based on the scenario being described within the question it can be said that the method invocation for this statement would be display(). This is because the statement,

Displayable picture = new Picture();

Is creating a new Displayable object this object then needs to be called using the . operator and passed the display() method in order for that object to correctly be displayed. Therefore the answer in this question is a. display()

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In your own words, describe the structure and function of both the stack and queue data structure and discuss how they are diffe
Kobotan [32]

Answer:

Following are the answer to this question:

Explanation:

Stack:

The stack data structure is used to create method, parsing, analysis of expression, and tracking. This data type uses the LIFO system, which stands from the Last In First Out. This data structure operates on the top side. In this data structure, it performs two methods, that are "push() and pop()" method and the time complexity of the stack data structure O(1).

Example of Stack:

import java.util.*;//import package

 public class Main //defining class Main

{      

public static void main (String[] ag)//defining main method  

  {

     ArrayDeque<Character> stack = new ArrayDeque<Character>();//creating Character array ArrayDeque  

       stack.push('A'); //add value in stack  

      stack.push('B');//add value in stack  

      stack.push('B'); //add value in stack  

      System.out.println("First Insert:"+stack); //print value         stack.pop();//remove value from stack    

    System.out.println("After removing element: "+stack); //print value         stack.push('B'); //add value in stack    

    stack.pop();//remove value from stack      

 System.out.println("final value: "+stack); //print value    

}

}

Output:

First Insert:[B, B, A]

After removing element: [B, A]

final value: [B, A]

Queue:

The queue data structure is an abstract type, it is similar to the stacks data structure. It is open at both ends when opposed to lines. It follows the FIFO method, which stands for the First-In-First-Out method, At one end data is inserted and at the other end, it deletes the data and the time complexity of the queue data structure O(1).

Example of Queue:

import java.util.*;//import package  

public class Main//defining a class queue

{  

    public static void main(String[] ars)//defining main method

    {  

      LinkedList<Integer> que= new LinkedList<Integer>();//defining integer array LinkedList    

      for (int i = 0; i < 5; i++)//defining fo loop to add value in queue  

     {    

        que.add(i); //use add method to insert value        

}        

System.out.println("Queue value: "+ que); //print queue value      

  int remove= que.remove(); //remove value from the queue          System.out.println("after removing value from queue: "+ remove);//removing element from queue  

      System.out.println(que);  //after removing the element print value  

  }

}  

Output:

Queue value: [0, 1, 2, 3, 4]

after removing value from queue: 0

[1, 2, 3, 4]

6 0
3 years ago
Write a function named replace_at_index that takes a string and an integer. The function should return a new string that is the
aalyn [17]

Answer:

def replace_at_index(str, number):

   new = str.replace(str[number], "-")

   return new

print(replace_at_index("eggplant", 3))

Explanation:

- Create a function called <em>replace_at_index</em> that takes a string and an integer

- Initialize a new variable called <em>new</em>, that will hold the new string

- Replace the character at given index with dash using <em>replace</em> function, it takes two parameters: the first is the character we want to replace, the second is the new character.

- Return the new string

- Call the function with the required inputs

4 0
3 years ago
What is one benefit of using electronic flash cards?
velikii [3]

Answer:

They can be searched using keywords. they may have a different alarm settings. they provide a personal organizer.

Explanation:

Hope this helped Mark BRAINLIEST!!!

4 0
3 years ago
Read 2 more answers
Javascript or java? which one is better?
kifflom [539]
See, one is more or less a toy, designed for writing small pieces of code and traditionally used and abused by inexperienced programmers. 

The other is a scripting language for web browsers. Sorry about my limited knowledge.
3 0
3 years ago
Read 2 more answers
Please tell fast plzzzzzz.​
lana [24]

Answer:

True

Explanation:

4 0
3 years ago
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