c$)3$D input file concept: Modify CubePers.java $($page $146$ of the textbook$),$ so that

it reads in a data file "cube.dat" $($instead of hardcoding in the program$)$ and

displays the cube in perspective as output. You may run the program by typing

the following: java CubePers cube.dat

Fig. $5\mathrm{.}10$ Output of program CubePers.java

Fig. $5\mathrm{.}11$ Vertex numbers

and coordinate axes

$//$ CubePers.java: A cube in perspective.

$//$ Uses: Point$2$D $($Section $1\mathrm{.}4),$ Point$3$D $($Section $3\mathrm{.}9).$

import java.awt.$*$ ;

import java.awt.event.$*$ ;

public class CubePers extends Frame $\{$

public static void main$($String$[]$ args$)\{$new CubePers$()$;$\}$

CubePers$()\{$

super$("$A cube in perspective"$)$;

addwindowListener$($new WindowAdapter$()\{$

public voidwindowClosing$($WindowEvent e$)\{$System$.$exit$(0)$; $\}$

$\})$;

Help me please