9. Select the correct answer.

All HTML5 webpages must begin with the HTML element _____.

Paul [167]

Answer:

yes, an HTML webpage must begin with an HTML element

Explanation:

<HTML>  </HTML>

3 0

2 years ago

I don't understand how to write code for this in Java using nested for loops only. The official question is: write a program tha

Bingel [31]

Answer:

public class Triangle

{

public static void main( String[] args )

{

show( 5 );

}

public static void show( int n )

{

int i,j,k;

for (i = 0; i < n - 1; i++ )

{

for (j = 0; j < i; j++ )

{

System.out.print( " " );

}

for (k = n - i; k > 0; k-- )

{

System.out.print( "* " );

}

System.out.println();

}

for (i = 0; i < n; i++ )

{

for (j = n - i; j > 1; j-- )

{

System.out.print( " " );

}

for (k = 0; k < i + 1; k++ )

{

System.out.print( "* " );

}

System.out.println();

}

4 0

3 years ago

What is a very important difference there between the wiring of an electromechanical thermostat and an electronic programmable t

valentinak56 [21]

Answer:

A mechanical thermostat will typically use a bimetal strip with two different metals that expand/contract with the temperature at different rates.

Explanation:

7 0

2 years ago

Write a complete Java program called Rooter that gets a positive integer called "start" from the user at the command line and th

Nataly_w [17]

Answer:

The program in Java is as follows:

import java.util.*;

import java.lang.Math;

public class Rooter{

public static void main(String[] args) {

Scanner input = new Scanner(System.in);

int start;

System.out.print("Start: ");

start = input.nextInt();

while(start<=0){

System.out.print("Number must be positive\nStart: ");

start = input.nextInt(); }

while(start>=0){

System.out.println(Math.sqrt(start));

start--; }

}

Explanation:

This declares start as integer

int start;

This prompts the user for input

System.out.print("Start: ");

This gets input for start

start = input.nextInt();

The following is repeated until the user input is valid i.e. positive

while(start<=0){

System.out.print("Number must be positive\nStart: ");

start = input.nextInt(); }

The following while loop prints the square root of each number till 0

while(start>=0){

System.out.println(Math.sqrt(start));

start--; }

4 0

2 years ago

In Java: Write a class called Shelf that contains instance data that repre-sents the length, breadth, and capacity of the shelf.

disa [49]

Answer:see explanation

Explanation:

Hello, the solution is the following:

in a file named Shelf.java :

public class Shelf{

int length;

int breadth;

int capacity;

boolean occupied;

Shelf(int length,int breadth, int capacity){

this.length = length;

this.breadth = breadth;

this.capacity = capacity;

this.occupied = false;

}

//set methods

public void setLength(int length){

this.length = length;

}

public void setBreadth(int breadth){

this.breadth = breadth;

}

public void setCapacity(int capacity){

this.capacity = capacity;

}

public void setOccupied(boolean occupied){

this.occupied = occupied;

}

//get methods

public int getLength(){

return this.length;

}

public int getBreadth(){

return this.breadth;

}

public int getCapacity(){

return this.capacity;

}

public boolean getOccupied(){

return this.occupied;

}

//tostring method

public String toString(){//overriding the toString() method

return "Shelf: \n"+" length: "+Integer.toString(this.length)+" breadth: "+Integer.toString(this.breadth)+" capacity: "+Integer.toString(this.capacity)+" occupied: "+Boolean.toString(this.occupied);

}

in another file named ShelfCheck.java

public class ShelfCheck {

public static void main(String[] args) {

Shelf s1=new Shelf(100,150,300);

Shelf s2=new Shelf(200,200,234);

Shelf s3=new Shelf(300,222,543);

Shelf s4=new Shelf(400,434,654);

System.out.println(s1);

System.out.println(s2);

System.out.println(s3);

System.out.println(s4);

s4.setLength(5);

System.out.println(s4);

s2.setBreadth(2);

System.out.println(s2);

s3.setCapacity(1);

System.out.println(s3);

s1.setOccupied(true);

System.out.println(s1);

}

OUTPUT:

Shelf:

length: 100 breadth: 150 capacity: 300 occupied: false

Shelf:

length: 200 breadth: 200 capacity: 234 occupied: false

Shelf:

length: 300 breadth: 222 capacity: 543 occupied: false

Shelf:

length: 400 breadth: 434 capacity: 654 occupied: false

Shelf:

length: 5 breadth: 434 capacity: 654 occupied: false

Shelf:

length: 200 breadth: 2 capacity: 234 occupied: false

Shelf:

length: 300 breadth: 222 capacity: 1 occupied: false

Shelf:

length: 100 breadth: 150 capacity: 300 occupied: true

5 0

2 years ago