diff --git a/different patterns in JAVA/patterns.class b/different patterns in JAVA/patterns.class
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diff --git a/different patterns in JAVA/patterns.java b/different patterns in JAVA/patterns.java
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+++ b/different patterns in JAVA/patterns.java	
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+import java.util.*;
+
+public class patterns{
+
+// ******
+// *    *
+// *    *
+// *    *
+// ******
+    public static void hollow_rectengle(int row, int col) {       
+        for (int i = 1; i <= row; i++) {
+            for (int j = 1; j <= col; j++) {
+                if (i == 1 || i == row || j == 1 || j == col) {
+                    System.out.print("*");
+                }
+                else {
+                    System.out.print(" ");
+                }
+            }
+            System.out.println();
+        }
+    }
+
+//      *
+//     **
+//    ***
+//   ****
+//  *****
+    public static void inverted_triangle(int row){
+        for(int i=1;i<=row;i++){
+            for(int j = row-1;j>=i;j--){
+                System.out.print(" ");
+            }
+            for(int j = 1;j<=i;j++){
+                System.out.print("*");
+            }
+            System.out.println();
+        }
+    }
+
+    // 1234
+    // 123
+    // 12
+    // 1
+    public static void inverted_halfpyramid_num(int n){
+        for(int i =n;i>=1;i--){
+            for(int j=1;j<=i;j++){
+                System.out.print(j);
+            }
+            System.out.println();
+        }
+    }
+
+    // 1 
+    // 2 3
+    // 4 5 6
+    // 7 8 9 10
+    public static void flyods_triangle(int n){
+        int num=1;
+        for(int i =1;i<=n;i++){
+            for(int j=1;j<=i;j++){
+                System.out.print(num + " ");
+                num++;
+            }
+            System.out.println();
+        }
+    }
+
+    // 1
+    // 01
+    // 101
+    // 0101
+    public static void zero_one_triangle(int n){
+        for(int i =1;i<=n;i++){
+            for(int j=1;j<=i;j++){
+                if((i+j)%2==0){
+                    System.out.print("1");
+                }
+                else{
+                    System.out.print("0");
+                }
+               
+            } System.out.println();
+        }
+    }
+    // *      *
+    // **    **
+    // ***  ***
+    // ********
+    // ********
+    // ***  ***
+    // **    **
+    // *      *
+    public static void butterfly(int n){
+        for(int i=1;i<=n;i++){
+            for(int j =1;j<=i;j++){
+                System.out.print("*");
+            }
+            for(int j=1;j<=2*(n-i);j++){
+                System.out.print(" ");
+            }
+            for(int j =1;j<=i;j++){
+                System.out.print("*");
+            }
+            System.out.println();
+        }
+        for(int i =n;i>=1;i--){
+           for(int j =1;j<=i;j++){
+                System.out.print("*");
+            }
+            for(int j=1;j<=2*(n-i);j++){
+                System.out.print(" ");
+            }
+            for(int j =1;j<=i;j++){
+                System.out.print("*");
+            }   
+            System.out.println();            
+
+
+        }
+    }
+
+//      *****
+//     *****
+//    *****
+//   *****
+//  *****
+    public static void rohmbus(int n){
+        for(int i = 1;i<=n;i++){
+            for(int j = 1;j<=n-i;j++){
+                System.out.print(" ");
+            }
+            for(int j = 1;j<=n;j++){
+                System.out.print("*");
+                
+            }
+            System.out.println();
+        }
+    }
+//      ***
+//     * *
+//    ***
+      public static void hollow_rohmbus(int n){
+        for(int i = 1;i<=n;i++){
+            for(int j = 1;j<=n-i;j++){
+                System.out.print(" ");
+            }
+            for(int j = 1;j<=n;j++){
+                if(i==1|| j==1 || i==n || j==n){
+                System.out.print("*");
+                }
+                else{
+                    System.out.print(" ");
+                }
+            }
+            System.out.println();
+        }
+    }
+
+//      *
+//     ***
+//    *****
+//   *******
+//  *********
+//  *********
+//   *******
+//    *****
+//     ***
+//      *
+    public static void kite(int n){
+        for(int i = 1;i<=n;i++){
+            for(int j =1;j<=n-i;j++){
+                System.out.print(" ");
+            }
+            for(int j =1;j<=(2*i)-1;j++){
+                System.out.print("*");
+            }
+            System.out.println();
+        }
+
+          for(int i = n;i>=1;i--){
+             for(int j =1;j<=n-i;j++){
+                 System.out.print(" ");
+             }
+             for(int j =1;j<=(2*i)-1;j++){
+                 System.out.print("*");
+             }
+             System.out.println();
+        }
+      
+    }
+ 
+//      1 
+//     2 2 
+//    3 3 3
+//   4 4 4 4
+//  5 5 5 5 5
+    public static void num_pyramid(int n){
+        int num=1;
+        for(int i = 1;i<=n;i++){
+            for(int j =1;j<=n-i;j++){
+                System.out.print(" ");
+            }
+            for(int j =1;j<=i;j++){
+                System.out.print(num +" ");
+            }
+            num++;
+            System.out.println();
+        }
+    
+    }
+    public static void main(String args[]){
+        hollow_rectengle(5, 6);
+        inverted_triangle(5);
+        inverted_halfpyramid_num(4);
+        flyods_triangle(4);
+        zero_one_triangle(4);
+        butterfly(4);
+        rohmbus(5);
+        hollow_rohmbus(3);
+        kite(5);
+        num_pyramid(5);
+    }
+}
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