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The output of the preceding program is as follows:
              1.  Pattern 1
              2.  Pattern 2
              Enter your choice
              1
              1
              1 2
              1 2 3
              1 2 3 4

                Program 13    Write a Java program to print the following using switch case statement.

                                1.             *         2.  * * * * *
                                            **               * * * *
                                            ***                * * *
                                         ****                   * *
                                      *****                       *
                                    ******

                1       import java.util.*;
                2       class nestedloop2
                3       {

                4           public static void main()
                5           {

                6               Scanner sc= new Scanner(System.in);
                7               int ch, i, j, k, rows;

                8               System.out.println("1. Pattern 1");
                9               System.out.println("2. Pattern 2 ");

                10              System.out.println("Enter your choice ");
                11              ch=sc.nextInt();

                12              switch(ch)
                13             {

                14                  case 1:
                15                       System.out.println("Enter number of rows: "); // takes input from user

                16                      rows = sc.nextInt();
                17                      for (i= 0; i<= rows; i++)    {

                18                          for (j=1; j<=rows-i; j++)    {
                19                              System.out.print(" ");

                20                          }
                21                          for (k=0; k<=i-1; k++)    {






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