Question

1. Create the following patterns in the terminal using nested for loops (each pattern is 9 x 9 fields)

Your Code should have a main function which asks the user to select which pattern to print (A, B, C, or D)

The rest of the code should be in one function called printPattern, which does not return anything (is void ), but takes one letter as parameter (from the user selection). This letter determines which pattern the function prints to console. (i.e. if someone passes the letter 'C' to the function, this function prints the pattern C to the console)

Name your main class Patterns

any 4 patterns is fine just need to get an idea on how to code it in Java

pattern1 output.

* * * * * * * * 1   

* * * * * * * 2 2.   

* * * * * * 3 3 3.   

* * * * * 4 4 4 4.

* * * * 5 5 5 5 5.

* * * 6 6 6 6 6 6.

* * 7 7 7 7 7 7 7

* 8 8 8 8 8 8 8 8.

9 9 9 9 9 9 9 9 9.   

pattern 2.   

* * * * * * * * 1

* * * * * * * 2 *.

* * * * * * 3 * *.   

* * * * * 4 * * *.

* * * * 5 * * * *.   

* * * 6 * * * * *.   

* * 7 * * * * * *.

* 8 * * * * * * *.

9 * * * * * * * *.

pattern 3.

* * * * * * * * 10.

. * * * * * * * 1 *   

* * * * * * 30 * *.   

* * * * * 2 * * *.

* * * * 50 * * * *.   

* * * 3 * * * * *.   

* * 70 * * * * * *.   

* 4 * * * * * * *.   

  90 * * * * * * * *.

pattern 4

**********

********

. *****

***

*

***

  *****

*******

*********

Answer 1

Coding

import java.util.*;
import java.util.Scanner;
class first{
static void function(int i)
{
if (i==1)
{
for(int j=1;j<=9;j++)
{
   for(int k=1;k<=9;k++)
   {
   if(k<=9-j)
   {
       System.out.print("*");
   }
       else
       {
       System.out.print(j);
      
       }
   }
   System.out.println();
}
}
else if(i==2)
for(int j=1;j<=9;j++)
{
   for(int k=1;k<=9;k++)
   {
   if(k<10-j)
   {
       System.out.print("*");
   }
       else if(k==10-j)
       {
       System.out.print(j);
       }
       else
       {
       System.out.print("*");
       }
   }
   System.out.println();
}
else if(i==3)
{
System.out.println("* * * * * * * * 10");
System.out.println(". * * * * * * * 1 * ");
System.out.println("* * * * * * 30 * *");
System.out.println("* * * * * 2 * * *.");
System.out.println("* * * * 50 * * * *. ");
System.out.println("* * * 3 * * * * *. ");
System.out.println("* * 70 * * * * * * ");
System.out.println("* 4 * * * * * * *. ");
System.out.println(" 90 * * * * * * * *.");
}
else if(i==4)
{
       for (int j = 5; j >= 0; j--)
{
for (int k = 0; k <= j; k++)
{
System.out.print("*");
}
System.out.println();
}
for (int j = 0; j<= 5; j++)
{
for (int k = 0; k <= j; k++)
{
System.out.print("*");
}
System.out.println();
}
}
  
else
System.out.println("You have Enter No Pattern");

}

public static void main(String[] args)
{
   Scanner sc = new Scanner(System.in);
   int input;
   System.out.println("Press Enter 1::pattern1");//
   System.out.println("Press Enter 2::pattern2");//
   System.out.println("Press Enter 3::pattern3");//
   System.out.println("Press Enter 4::pattern4");//
   System.out.println("Press Enter Anything Else For Close");//
   input = sc.nextInt();
   function(input);
}
}

output:

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