using recursion write a java code which outputs the stars inthe following patter

Question

using recursion write a java code which outputs the stars inthe following pattern but it should ask the user to input anonnegative integer for stars & the number oflines
output should look like this : for eg if the input for stars is 3 & lines is 5then output as follows:       *                        ***                  *    *   *                     **                     ** *    *   *                  *                        ** *    *   *                     **                     **       *                       * **                  * And if for eg if the input for stars is 3 &lines is 4 then output as follows:       *                        ***                  *    *   *                     **                     ** *    *   *                  *                        ** *    *   *                     **                     ** i want all the three output when the input is made.... using recursion write a java code which outputs the stars inthe following pattern but it should ask the user to input anonnegative integer for stars & the number oflines
output should look like this : for eg if the input for stars is 3 & lines is 5then output as follows:       *                        ***                  *    *   *                     **                     ** *    *   *                  *                        ** *    *   *                     **                     **       *                       * **                  * And if for eg if the input for stars is 3 &lines is 4 then output as follows:       *                        ***                  *    *   *                     **                     ** *    *   *                  *                        ** *    *   *                     **                     **       *                        ***                  *    *   *                     **                     ** *    *   *                  *                        ** *    *   *                     **                     **       *                        ***                  *    *   *                     **                     ** *    *   *                  *                        ** *    *   *                     **                     ** i want all the three output when the input is made....

Explanation / Answer

please rate - thanks import java.util.*; public class recursiveshapes{ public static void main(String[]args)throws Exception { Scanner in = new Scanner(System.in); int i,s; System.out.print("How many rows? "); i=in.nextInt(); System.out.print("How many stars? "); s=in.nextInt(); line(s,1,i); System.out.println(" "); bump(1,s,1,i,s); System.out.println(" "); tri(1,s,1,i,s); } public static void line(int m,int n,int p) {int i; //System.out.println(m+" "+n+" "+p); if(p==0)      return; for(i=0;i0)    System.out.println(); if(m==1||n==0)    line(m+1,0,p-1); else     line(m-1,n,p-1); } public static void bump(int r,int m,int n,int p,int s) {int i; //System.out.println(r+" "+m+" "+p); if(p==0)      return; for(i=0;i0)    System.out.println(); if(r>=s||n==0)    bump(r-1,m+1,0,p-1,s); else     bump(r+1,m-1,1,p-1,s); } public static void tri(int r,int m,int n,int p,int s) {int i; //System.out.println(r+" "+m+" "+n+" "+p); if(p==0)      return; for(i=0;i=s||n==0)    tri(r-1,m+1,0,p-1,s); else     tri(r+1,m-1,1,p-1,s); } }

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