Please help me bout java (thank you in advance)

Hi good evening po. Sana makatulong kayo. Bukas or sa monday na ipapasa yung project. Bali ang gagawin ay array siya at mag eenter ka ng 8 design then size. Pwede niyo pong i-edit etong code ko or gawa kayo ng new. Talagang nahihirapan kami ng kasama ko hehe salamat po. Godbless

import java.util.Scanner;

public class proj

{

public static void main(String[] args)

{

Scanner java = new Scanner(System.in);

int size,length, width, height,choice, i, j;

System.out.println("Macapinlac, Ryan Kristoffer");

System.out.println("De Guzman, Mc Einnor");

System.out.println("Midterm Project");

choice = 1;

while (choice != 8)

{

System.out.println("\nMenu of shapes: \n");

System.out.println(" 1) Square.");

System.out.println(" 2) Rectangle.");

System.out.println(" 3) Hollow Square.");

System.out.println(" 4) Diamond.");

System.out.println(" 5) X.");

System.out.println(" 6) Pinwheel");

System.out.println(" 7) ------");

System.out.println(" 8) Quit Program\n");

System.out.print("Enter the number of the shape you want: ");

choice = java.nextInt();

System.out.println();

switch (choice)

{

case 1:

System.out.print("Enter the size of the square: ");

size = java.nextInt();

System.out.println();

for (i = 1; i <= size; i++)

{

for (j = 1; j <= size; j++)

System.out.print("*");

System.out.println();

}

break;

case 2:

System.out.print("Enter the length of the rectangle: ");

length = java.nextInt();

System.out.print("Enter the width of the rectangle: ");

width = java.nextInt();

System.out.println();

for (i = 1; i <= length; i++){

for (j = 1; j <= width; j ++)

System.out.print("*");

System.out.println ();

}

break;

case 3:

System.out.print("Enter the size of the square: ");

size = java.nextInt();

System.out.println();

{

for( i=1; i<=size ;i++){

System.out.print("*");

}

System.out.println(" ");

for ( j = 1; j <= size-2 ; j++)

{

for( i=1; i<=size ;i++)

{

if ( i == 1 || i == size)

{

System.out.print("*");

}

else

{

System.out.print(" ");

}

}

System.out.println();

}

for(i=1; i<=size ;i++){

System.out.print("*");

}

} break;

case 4:

System.out.print("Enter the size of the diamond: ");

size = java.nextInt();

for( i=1;i<=size;i++)

{

for( j=size;j>=i;j--)

{

System.out.print(" ");

}

for(int m=1;m<=i;m++)

{

System.out.print(" *");

}

System.out.println();

}

for( i=1;i<=size;i++)

{

for( j=1;j<=i;j++)

{

System.out.print(" ");

}

for(int m=size;m>=i;m--)

{

System.out.print(" *");

}

System.out.println();

}

break;

case 5:

System.out.print("Enter the size(MUST BE ODD NUMBER): ");

size = java.nextInt();

int x = 0;

int y = size-1;

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

{

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

{

if (x == y && j == i)

System.out.print('*');

else if (x == j || y == j)

System.out.print('*');

else

System.out.print(' ');

}

x++;

y--;

System.out.println();

} break;

case 6:

int r,c;

char ch='*';

int base=5;

int ht=5;

int len = (base * 2);

int star = 1;

for(r=0;r<ht;r++) {

for(c=0;c<len;c++) {

if(c<star)

ch='*';

else if(c>=star && c<len-base)

ch=' ';

else if(c>=star && c<len-r)

ch='*';

System.out.print(ch);

ch=' ';

}

System.out.println();

++star;

}

star=base-1;

for(r=0;r<ht;r++) {

for(c=0;c<len;c++) {

if(c<star)

ch=' ';

else if(c>=star && c<len-base)

ch='*';

//else if(c>=star && c<len-r)

//ch=;

System.out.print(ch);

ch=' ';

}

System.out.println();

--star;

}

break;

}

}

}

}

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