star pattern dsa

Hello guys! for you I am providing star pattern related Data structures

Following is sample java code.

import java.util.*;

public class Main {
    public static void main(String[] args) {
       
       for(int i=1; i<=5; i++){
         for(int j=1; j<=i; j++){
           System.out.print('*');
         }
         System.out.println();
         
       }
       System.out.println("patternTwo");
      
       for(int i=1; i<=5; i++){
         for(int j=5; j>=i; j--){
           System.out.print('*');
         }
         System.out.println();
       }
        System.out.println("patternThree");
       
       for(int i=1; i<=5; i++){
         for(int j=1; j<=i; j++){
           System.out.print('*');
         }
         System.out.println();
       }
       for(int i=1; i<=5; i++){
         for(int j=4; j>=i; j--){
           System.out.print('*');
         }
         System.out.println();
       }
      System.out.println("pattern4");
        
        for(int i=1; i<=5; i++){
          for(int j=4; j>=i; j--){
            System.out.print(" ");
          }
          for(int k=1; k<=i; k++){
            System.out.print("*");
          }
          System.out.println();
        }
      System.out.println("pattern5");
        
        for(int i=1; i<=5; i++){
          for(int j=4; j>=i; j--){
            System.out.print(" ");
          }
          for(int k=1; k<=i; k++){
            System.out.print("*");
          }
          for(int l=2; l<=i; l++){
            System.out.print("*");
          }
          System.out.println();
        }

  }
}