Please fix the java code for both of these and show the Java Codes for this problem.

Problem $1$: TextCanvas

$100$ pts

Implement a TextCanvas class in chapter$10.$canvas package. The TextCanvas class should implement Canvas package as provided in the assignment.

Check the Test Cases Console on the right for more details. The test cases will show when you click on the task.

package chapter$10.$canvas;

$/**$

The implementing class should have a constructor with two parameters

width: the width of the canvas.

height: the height of the canvas.

The valid locations for each pixels are from $[0..$height$-1][0..$width$-1]$

$*/$

public interface Canvas $\{$

$/**$

returns the height of the canvas.

$*/$

int getHeight$()$;

$/**$

returns the width of the canvas.

$*/$

int getWidth$()$;

$/**$

@param an rectangle area to be added to the canvas

returns the id of the rectangle in the canvas. The id of the

rectangle is a unique integer for a rectangle in the canvas, and

id will not be reused$($after the deletion of a rectangle$).$

If the coordinates are not valid or out of the bounds for the canvas,

returns $-1.$

$*/$

int add$($int leftX, int upperY, int rightX, int bottomY$)$;

$/**$

removes the rectangle identified by the id from the canvas.

$*/$

int remove$($int id$)$;

$/**$

moves the rectangle identified by id to the right by xOff and down by yOff.

If the move attempt to move the rectangle out of bounds of the canvas,

the rectangle will stop at the boundary.

If xOff is a negative number, move to the left by $|$xOff$|.$

If yOff is a negative number, move up by $|$yOff$|,$

$*/$

int move$($int id$,$ int xOff, int yOff$)$;

$/**$

returns the total shaded area on this canvas.

$*/$

int getShadedArea$()$;

$/**$

displays the convas. Each pixel on the canvas will be displayed as a

blank if it is not covered by any rectangles, and will be displayed as

a star if it is covered by one or more rectangles.

$*/$

void draw$()$;

$\}$

X $1$ import chapter$10.$canvas.Canvas;

import chapter$10.$canvas.TextCanvas;

public class TextCanvasTest $\{$

public static void main$($String$[]$ args$)\{$

Canvas canvas $=$ new TextCanvas$(30,20)$;

int r$1=$ canvas.add$(0,6,6,9)$;

int r$2=$ canvas.add$(4,4,8,8)$;

canvas.draw$()$;

System.out.println$($canvas$.$getShadedArea$())$;

canvas.remove$($r$1)$;

canvas.move$($r$2,-5,-2)$;

canvas.draw$()$;

$//$ this rectangle is out of bound, and will not be added

canvas.add$(0,2,30,20)$;

System.out.println$($canvas$.$getShadedArea$())$;

canvas.draw$()$;

$\}$

$\}$