Java – Pyramid Patterns

Pattern:

    *
   ***
  *****
 *******
*********

Code:

int n=7; for(int i=1 ; i<=n ; i++) {             for(int j=i ; j<n ; j++){                         System.out.print(” “);             }             for(int k=1 ; k<=2*i-1 ; k++){                         System.out.print(“*”);             }             System.out.println(); }

Pattern:

    *
   * *
  *   *
 *     *
*********

Code:

int n=7; for(int i=1 ; i<=n ; i++) {             for(int j=i ; j<n ; j++){                         System.out.print(” “);             }             for(int k=1 ; k<=2*i-1 ; k++){                         if(i==1 || i==n || k==1 || k==2*i-1)                                     System.out.print(“*”);                         else                                     System.out.print(” “);             }             System.out.println(); }

Pattern:

*********
 *******
  *****
   ***
    *

Code:

int n=7; for(int i=n ; i>=1 ; i–) {             for(int j=i ; j<n ; j++){                         System.out.print(” “);             }             for(int k=1 ; k<=2*i-1 ; k++){                         System.out.print(“*”);             }             System.out.println(); }

Pattern:

555555555
 4444444
  33333
   222
    1

Code:

int n=7; for(int i=n ; i>=1 ; i–) {             for(int j=i ; j<n ; j++){                         System.out.print(” “);             }             for(int k=1 ; k<=2*i-1 ; k++){                         System.out.print(i);             }             System.out.println(); }