import java.util.Scanner; public class Patterns { static int help = 0; static void floydTriangle(int n) { help =0; System.out.println("Floyd Triangle : "); for(int i =1;i<=n;i++) {for(int j=1;j<=i;j++)System.out.print(1+help++ +" "); System.out.println();} System.out.println(); } static void reverse_floydTriangle(int n) { System.out.println("Reverse Floyd Triangle : "); for(int i =n;i>=1;i--) {for(int j=1;j<=i;j++)System.out.print(help-- +" "); System.out.println();} System.out.println(); } public static void pattern1(int n) { System.out.println("Pattern 1 : "); for(int i =1;i<=n;i++) { for(int j=1;j<=i;j++) { System.out.print(i+" "); } System.out.println(); } System.out.println(); } public static void reversePattern1(int n) { System.out.println("Reverse of "+"Pattern 1 : "); for(int i = n;i>=1;i--) { for(int j=1;j<=i;j++) { System.out.print(i+" "); } System.out.println(); } System.out.println(); } public static void pattern2(int n) { System.out.println("Pattern 2 : "); for(int i =1;i<=n;i++) { for(int j=1;j<=i;j++) { System.out.print(j+" "); } System.out.println(); } System.out.println(); } public static void reversePattern2(int n) { System.out.println("Reverse of "+"Pattern 2 : "); for(int i = n;i>=1;i--) { for(int j=1;j<=i;j++) { System.out.print(j+" "); } System.out.println(); } System.out.println(); } public static void pattern3(int n) { System.out.println("Pattern 3 : "); for(int i =1;i<=n;i++) { for(int j=1;j<=i;j++) { System.out.print((j*2)-1+" "); } System.out.println(); } System.out.println(); } public static void reversePattern3(int n) { System.out.println("Reverse of "+"Pattern 3 : "); for(int i = n;i>=1;i--) { for(int j=1;j<=i;j++) { System.out.print((j*2)-1+" "); } System.out.println(); } System.out.println(); } public static void pattern4(int n) { System.out.println("Pattern 4 : "); for(int i =1;i<=n;i++) { int num = 0; for(int j=1;j<=i;j++) { System.out.print(num+" "); num=(++num)%2; } System.out.println(); } System.out.println(); } public static void reversePattern4(int n) { System.out.println("Reverse of "+"Pattern 4 : "); for(int i =n;i>=1;i--) { int num = 0; for(int j=1;j<=i;j++) { System.out.print(num+" "); num=(++num)%2; } System.out.println(); } System.out.println(); } public static void pattern5(int n) { System.out.println("Pattern 5 : "); int num =1; for(int i =1;i<=n;i++) { for(int j=1;j<=i;j++) { System.out.print((int)Math.pow(num++,2)+" "); if(i!=n)help++; } System.out.println(); } System.out.println(); } public static void reversePattern5(int n) { System.out.println("Reverse of "+"Pattern 5 : "); int num =++help,temp,count=0,temp2=n; for(int i =n;i>=1;i--) { temp = num-count; count+=--temp2; for(int j=1;j<=i;j++) { System.out.print((int)Math.pow(temp++,2)+" "); } System.out.println(); } System.out.println(); } public static void pattern6(int n) { System.out.println("Pattern 6 : "); int temp =0,temp2; for(int i =1;i<=n;i++) { temp += i; temp2= temp; for(int j=1;j<=i;j++) { System.out.print(temp2--+" "); } System.out.println(); } System.out.println(); help =temp; } public static void reversePattern6(int n) { System.out.println("Reverse of "+"Pattern 6 : "); int temp =help,temp2,count = 0,temp3=n; for(int i =n;i>=1;i--) { temp -= count; temp2= temp; count =temp3--; for(int j=1;j<=i;j++) { System.out.print(temp2--+" "); } System.out.println(); } System.out.println(); } public static void pattern7(int n) { System.out.println("Pattern 7 : "); char ch = 65; for(int i = 1;i<=n;i++){ for(int j=1;j<=i;j++) { if(ch<=90) { if(j==1&&i==n) help = ch; System.out.print(ch++); }else { ch =65; System.out.print(ch++); } if(ch<=90) { System.out.print(ch++); }else { ch =65; System.out.print(ch++); } } System.out.println(); } System.out.println(); } public static void reversePattern7(int n) { System.out.println("Reverse of "+"Pattern 7 : "); int count = 0,temp2=n; char ch = (char)help; char temp1=ch; for(int i = n;i>=1;i--){ if((char)(temp1-count)<'A') { temp1-=count; temp1+=26; }else temp1-=count; ch = temp1; count=(--temp2)*2; for(int j=1;j<=i;j++) { if(ch<=90) { System.out.print(ch++); }else { ch =65; System.out.print(ch++); } if(ch<=90) { System.out.print(ch++); }else { ch =65; System.out.print(ch++); } } System.out.println(); } System.out.println(); } public static void pattern8(int n) { System.out.println("Pattern 8 : "); int mid = n/2+1,s=2; for(int i =1;i<=n;i++) { if((n%2==0&&i==mid)) s--; if(i<=mid) { s++; } else s--; for(int j=1;j<=s;j++) { System.out.print("#"); } System.out.println(); } System.out.println(); } public static void pattern9(int n) { int mid = n/2+1,s=n; System.out.println("Pattern 9 : "); for(int i =1;i<=n;i++) { if((n%2==0&&i==mid)) s++; if(i<=mid) { s--; }else s++; for(int j=1;j<=s;j++) { System.out.print("#"); } System.out.println(); } System.out.println(); } static void pattern10(int n) { System.out.println("Pattern 10 : "); for(int i =1;i<=n;i++) { for(int j =1;j1;j--) { System.out.print(" "); } counter2=counter1; for(int j=1;j<=counter1+1;j++ ) { System.out.print(n-counter2+" "); counter2--; } System.out.println(); } System.out.println(); } public static void main(String[] args) { int n = 7;//Change this number for a pattern of different size. pattern1(n); reversePattern1(n); pattern2(n); reversePattern2(n); pattern3(n); reversePattern3(n); pattern4(n); reversePattern4(n); pattern5(n); reversePattern5(n); pattern6(n); reversePattern6(n); pattern7(n); reversePattern7(n); pattern8(n); pattern9(n); floydTriangle(n); reverse_floydTriangle(n); pattern10(n); System.out.println("\nThank you so much for checking out my code! If you like this code then please upvote(^) this code. Have a great day! :)"); } }

All Patterns + Reverse