Reverse Right Half Pyramid Pattern

Java Pattern Programs

Here, you will find the top 25 Java pattern programs with their proper code and explanation....

1. Square Hollow Pattern

Java // Java Program to print pattern // Square hollow pattern import java.util.*; public class GeeksForGeeks { // Function to demonstrate pattern public static void printPattern(int n) { int i, j; // outer loop to handle number of rows for (i = 0; i < n; i++) { // inner loop to handle number of columns for (j = 0; j < n; j++) { // star will print only when it is in first // row or last row or first column or last // column if (i == 0 || j == 0 || i == n - 1 || j == n - 1) { System.out.print("*"); } // otherwise print space only. else { System.out.print(" "); } } System.out.println(); } } // Driver Function public static void main(String args[]) { int n = 6; printPattern(n); } }...

2. Number triangle Pattern

Java // Java Program to print pattern // Number triangle pattern import java.util.*; public class GeeksForGeeks { // Function to demonstrate pattern public static void printPattern(int n) { int i, j; // outer loop to handle number of rows for (i = 1; i <= n; i++) { // inner loop to print space for (j = 1; j <= n - i; j++) { System.out.print(" "); } // inner loop to print star for (j = 1; j <= i; j++) { System.out.print(i + " "); } // print new line for each row System.out.println(); } } // Driver Function public static void main(String args[]) { int n = 6; printPattern(n); } }...

3. Number-increasing Pyramid Pattern

Java // Java Program to print pattern // Number-increasing pyramid import java.util.*; public class GeeksForGeeks { // Function to demonstrate pattern public static void printPattern(int n) { int i, j; // outer loop to handle number of rows for (i = 1; i <= n; i++) { // inner loop to handle number of columns for (j = 1; j <= i; j++) { // printing column values upto the row // value. System.out.print(j + " "); } // print new line for each row System.out.println(); } } // Driver Function public static void main(String args[]) { int n = 6; printPattern(n); } }...

4. Number-increasing reverse Pyramid Pattern

Java // Java Program to print pattern // Number-increasing reverse pyramid import java.util.*; public class GeeksForGeeks { // Function to demonstrate pattern public static void printPattern(int n) { int i, j; // outer loop to handle number of rows for (i = n; i >= 1; i--) { // inner loop to handle number of columns for (j = 1; j <= i; j++) { // printing column values upto the row // value. System.out.print(j + " "); } // print new line for each row System.out.println(); } } // Driver Function public static void main(String args[]) { int n = 6; printPattern(n); } }...

5. Number-changing Pyramid Pattern

Java // Java Program to print pattern // Number-changing pyramid import java.util.*; // Java code for printing pattern public class GeeksForGeeks { // Function to demonstrate pattern public static void printPattern(int n) { int i, j; int num = 1; // outer loop to handle number of rows for (i = 1; i <= n; i++) { // inner loop to handle number of columns for (j = 1; j <= i; j++) { // printing value of num in each iteration. System.out.print(num + " "); // increasing the value of num. num++; } // printing new line for each row System.out.println(); } } // Driver Function public static void main(String args[]) { int n = 6; printPattern(n); } }...

6. Zero-One Triangle Pattern

Java // Java Program to print pattern // Zero-One triangle import java.util.*; public class GeeksForGeeks { // Function to demonstrate pattern public static void printPattern(int n) { int i, j; //outer loop to handle number of rows for (i = 1; i <= n; i++) { //inner loop to handle number of columns for (j = 1; j <= i; j++) { // if the sum of (i+j) is even then print 1 if ((i + j) % 2 == 0) { System.out.print(1 + " "); } // otherwise print 0 else { System.out.print(0 + " "); } } //printing new line for each row System.out.println(); } } // Driver Function public static void main(String args[]) { int n = 6; printPattern(n); } }...

7. Palindrome Triangle Pattern

Java // Java Program to print pattern // Palindrome triangle import java.util.*; public class GeeksForGeeks { // Function to demonstrate pattern public static void printPattern(int n) { int i, j; // outer loop to handle number of rows for (i = 1; i <= n; i++) { // inner loop to print the spaces for (j = 1; j <= 2 * (n - i); j++) { System.out.print(" "); } // inner loop to print the first part for (j = i; j >= 1; j--) { System.out.print(j + " "); } // inner loop to print the second part for (j = 2; j <= i; j++) { System.out.print(j + " "); } // printing new line for each row System.out.println(); } } // Driver Function public static void main(String args[]) { int n = 6; printPattern(n); } }...

8. Rhombus Pattern

Java // Java Program to print // Rhombus pattern import java.util.*; public class GeeksForGeeks { // Function to demonstrate pattern public static void printPattern(int n) { int i, j; int num = 1; // outer loop to handle number of rows for (i = 1; i <= n; i++) { // inner loop to print spaces for (j = 1; j <= n - i; j++) { System.out.print(" "); } // inner loop to print stars for (j = 1; j <= n; j++) { System.out.print("*"); } // printing new line for each row System.out.println(); } } // Driver Function public static void main(String args[]) { int n = 6; printPattern(n); } }...

9. Diamond Star Pattern

Java // Java Program to print // Diamond Star Pattern import java.util.*; public class GeeksForGeeks { // Function to demonstrate pattern public static void printPattern(int n) { int i, j; int num = 1; // outer loop to handle upper part for (i = 1; i <= n; i++) { // inner loop to print spaces for (j = 1; j <= n - i; j++) { System.out.print(" "); } // inner loop to print stars for (j = 1; j <= 2 * i - 1; j++) { System.out.print("*"); } System.out.println(); } // outer loop to handle lower part for (i = n-1; i >= 1; i--) { // inner loop to print spaces for (j = 1; j <= n - i; j++) { System.out.print(" "); } // inner loop to print stars for (j = 1; j <= 2 * i - 1; j++) { System.out.print("*"); } System.out.println(); } } // Driver Function public static void main(String args[]) { int n = 6; printPattern(n); } }...

10. Butterfly Star Pattern

Java // Java Program to print // Butterfly Pattern import java.util.*; // Java code for printing pattern public class GeeksForGeeks { // Function to demonstrate pattern public static void printPattern(int n) { int i, j; int num = 1; // outer loop to handle upper part for (i = 1; i <= n; i++) { // inner loop to print stars for (j = 1; j <= i; j++) { System.out.print("*"); } // inner loop to print spaces int spaces = 2 * (n - i); for (j = 1; j <= spaces; j++) { System.out.print(" "); } // inner loop to print stars for (j = 1; j <= i; j++) { System.out.print("*"); } System.out.println(); } // outer loop to handle lower part for (i = n; i >= 1; i--) { // inner loop to print stars for (j = 1; j <= i; j++) { System.out.print("*"); } // inner loop to print spaces int spaces = 2 * (n - i); for (j = 1; j <= spaces; j++) { System.out.print(" "); } // inner loop to print stars for (j = 1; j <= i; j++) { System.out.print("*"); } System.out.println(); } } // Driver Function public static void main(String args[]) { int n = 6; printPattern(n); } }...

11. Square Fill Pattern

Java // Java Program to print // Square fill pattern import java.util.*; public class GeeksForGeeks { // Function to demonstrate pattern public static void printPattern(int n) { int i, j; // outer loop to handle rows for (i = 0; i <= n; i++) { // inner loop to handle columns for (j = 0; j <= n; j++) { System.out.print("*"); } // printing new line for each row System.out.println(); } } // Driver Function public static void main(String args[]) { int n = 6; printPattern(n); } }...

12. Right Half Pyramid Pattern

Java // Java Program to print // Pyramid pattern import java.util.*; public class GeeksForGeeks { // Function to demonstrate pattern public static void printPattern(int n) { int i, j; // outer loop to handle rows for (i = 1; i <= n; i++) { // inner loop to handle columns for (j = 1; j <= i; j++) { System.out.print("*"); } // printing new line for each row System.out.println(); } } // Driver Function public static void main(String args[]) { int n = 6; printPattern(n); } }...

13. Reverse Right Half Pyramid Pattern

Java // Java Program to print pattern // Reverse Right Half Pyramid import java.util.*; public class GeeksForGeeks { // Function to demonstrate pattern public static void printPattern(int n) { int i, j; // outer loop to handle rows for (i = n; i >= 1; i--) { // inner loop to handle columns for (j = 1; j <= i; j++) { System.out.print("*"); } // printing new line for each row System.out.println(); } } // Driver Function public static void main(String args[]) { int n = 6; printPattern(n); } }...

14. Left Half Pyramid Pattern

Java // Java Program to print pattern // Left Half Pyramid pattern import java.util.*; public class GeeksForGeeks { // Function to demonstrate pattern public static void printPattern(int n) { int i, j; // outer loop to handle rows for (i = n; i >= 1; i--) { // inner loop to print spaces. for (j = 1; j < i; j++) { System.out.print(" "); } // inner loop to print stars. for (j = 0; j <= n - i; j++) { System.out.print("*"); } // printing new line for each row System.out.println(); } } // Driver Function public static void main(String args[]) { int n = 6; printPattern(n); } }...

15. Reverse Left Half Pyramid Pattern

Java // Java Program to print pattern // Reverse Left Half Pyramid import java.util.*; public class GeeksForGeeks { // Function to demonstrate pattern public static void printPattern(int n) { int i, j; // calculating number of spaces int num = 2 * n - 2; // outer loop to handle rows for (i = n; i > 0; i--) { // inner loop to print spaces. for (j = 0; j < n - i; j++) { System.out.print(" "); } // Decrementing value of num after each loop num = num - 2; // inner loop to print stars. for (j = 0; j < i; j++) { System.out.print("*"); } // printing new line for each row System.out.println(); } } // Driver Function public static void main(String args[]) { int n = 6; printPattern(n); } }...

16. Triangle Star Pattern

Java // Java Program to print // Triangular Pattern import java.util.*; public class GeeksForGeeks { // Function to demonstrate pattern public static void printPattern(int n) { int i, j; // outer loop to handle rows for (i = 0; i < n; i++) { // inner loop to print spaces. for (j = n - i; j > 1; j--) { System.out.print(" "); } // inner loop to print stars. for (j = 0; j <= i; j++) { System.out.print("* "); } // printing new line for each row System.out.println(); } } // Driver Function public static void main(String args[]) { int n = 6; printPattern(n); } }...

17. Reverse number Triangle Pattern

Java // Java Program to print pattern // Reverse number triangle import java.util.*; public class GeeksForGeeks { // Function to demonstrate pattern public static void printPattern(int n) { int i, j; // outer loop to handle rows for (i = 1; i <= n; i++) { // inner loop to print spaces. for (j = 1; j < i; j++) { System.out.print(" "); } // inner loop to print value of j. for (j = i; j <= n; j++) { System.out.print(j + " "); } // printing new line for each row System.out.println(); } } // Driver Function public static void main(String args[]) { int n = 6; printPattern(n); } }...

18. Mirror Image Triangle Pattern

Java // Java Program to print pattern // Mirror Image of a triangle import java.util.*; public class GeeksForGeeks { // Function to demonstrate pattern public static void printPattern(int n) { int i, j; // Printing the upper part for (i = 1; i <= n; i++) { // inner loop to print spaces. for (j = 1; j < i; j++) { System.out.print(" "); } // inner loop to print value of j. for (j = i; j <= n; j++) { System.out.print(j + " "); } // printing new line for each row System.out.println(); } // Printing the lower part for (i = n - 1; i >= 1; i--) { // inner loop to print spaces. for (j = 1; j < i; j++) { System.out.print(" "); } // inner loop to print value of j. for (j = i; j <= n; j++) { System.out.print(j + " "); } // printing new line for each row System.out.println(); } } // Driver Function public static void main(String args[]) { int n = 6; printPattern(n); } }...

19. Hollow Triangle Pattern

Java // Java Program to print // Hollow triangle pattern import java.util.*; public class GeeksForGeeks { // Function to demonstrate pattern public static void printPattern(int n) { int i, j, k; // outer loop to handle rows for (i = 1; i <= n; i++) { // inner loop to print spaces. for (j = i; j < n; j++) { System.out.print(" "); } for (k = 1; k <= (2 * i - 1); k++) { // printing stars. if (k == 1 || i == n || k == (2 * i - 1)) { System.out.print("*"); } // printing spaces. else { System.out.print(" "); } } System.out.println(""); } } // Driver Function public static void main(String args[]) { int n = 6; printPattern(n); } }...

20. Hollow Reverse Triangle Pattern

Java // Java Program to print pattern // Reverse Hollow triangle import java.util.*; public class GeeksForGeeks { // Function to demonstrate pattern public static void printPattern(int n) { int i, j, k; // outer loop to handle rows for (i = n; i >= 1; i--) { // inner loop to print spaces. for (j = i; j < n; j++) { System.out.print(" "); } for (k = 1; k <= (2 * i - 1); k++) { // printing stars. if (k == 1 || i == n || k == (2 * i - 1)) { System.out.print("*"); } // printing spaces. else { System.out.print(" "); } } System.out.println(""); } } // Driver Function public static void main(String args[]) { int n = 6; printPattern(n); } }...

21. Hollow Diamond Pyramid

Java // Java Program to print Pattern // Hollow Diamond Star import java.util.*; public class GeeksForGeeks { // Function to demonstrate pattern public static void printPattern(int n) { int i, j; int num = 1; // outer loop to handle upper part for (i = 1; i <= n; i++) { // inner loop to print spaces for (j = 1; j <= n - i; j++) { System.out.print(" "); } // inner loop to print stars for (j = 1; j <= 2 * i - 1; j++) { if (j == 1 || j == 2*i-1) System.out.print("*"); else System.out.print(" "); } System.out.println(); } // outer loop to handle lower part for (i = n-1; i >= 1; i--) { // inner loop to print spaces for (j = 1; j <= n - i; j++) { System.out.print(" "); } // inner loop to print stars for (j = 1; j <= 2 * i - 1; j++) { if (j == 1 || j == 2*i-1) System.out.print("*"); else System.out.print(" "); } System.out.println(); } } // Driver Function public static void main(String args[]) { int n = 6; printPattern(n); } }...

22. Hollow Hourglass Pattern

Java // Java Program to print pattern // Hollow Hourglass Pattern import java.util.*; public class GeeksForGeeks { // Function to demonstrate pattern public static void printPattern(int n) { int i, j; // Printing the upper part for (i = 1; i <= n; i++) { // inner loop to print spaces. for (j = 1; j < i; j++) { System.out.print(" "); } // inner loop to print value of j. for (j = i; j <= n; j++) { if(j==i||j==n||i==1) System.out.print("* "); else System.out.print(" "); } // printing new line for each row System.out.println(); } // Printing the lower part for (i = n - 1; i >= 1; i--) { // inner loop to print spaces. for (j = 1; j < i; j++) { System.out.print(" "); } // inner loop to print value of j. for (j = i; j <= n; j++) { if(j==i||j==n||i==1) System.out.print("* "); else System.out.print(" "); } // printing new line for each row System.out.println(); } } // Driver Function public static void main(String args[]) { int n = 6; printPattern(n); } }...

23. Pascal’s Triangle

Java // Java Program to implement // Pascal's Triangle import java.util.*; class GFG { // Pascal function public static void printPascal(int n) { for (int i = 1; i <= n; i++) { for (int j = 0; j <= n - i; j++) { // for left spacing System.out.print(" "); } // used to represent x(i, k) int x = 1; for (int k = 1; k <= i; k++) { // The first value in a line is always 1 System.out.print(x + " "); x = x * (i - k) / k; } System.out.println(); } } // Driver code public static void main(String[] args) { int n = 4; printPascal(n); } }...

24. Right Pascal’s Triangle

Java // Java Program to print // Right Pascal’s Triangle import java.util.*; // Java code for printing pattern public class Main { // Function to demonstrate pattern public static void printPattern(int n) { int i, j; int num = 1; // outer loop to handle upper part for (i = 1; i <= n; i++) { // inner loop to print stars for (j = 1; j <= i; j++) { System.out.print("* "); } System.out.println(); } // outer loop to handle lower part for (i = n-1; i >= 1; i--) { // inner loop to print stars for (j = 1; j <= i; j++) { System.out.print("* "); } System.out.println(); } } // Driver Function public static void main(String args[]) { int n = 4; printPattern(n); } }...

25. K Pattern

Java // Java Program to print pattern // Reverse Right Half Pyramid import java.util.*; public class GeeksForGeeks { // Function to demonstrate pattern public static void printPattern(int n) { int i, j; // outer loop to handle rows for (i = n; i >= 1; i--) { // inner loop to handle columns for (j = 1; j <= i; j++) { System.out.print("*"); } // printing new line for each row System.out.println(); } // outer loop to handle rows for (i = 2; i <= n; i++) { // inner loop to handle columns for (j = 1; j <= i; j++) { System.out.print("*"); } // printing new line for each row System.out.println(); } } // Driver Function public static void main(String args[]) { int n = 6; printPattern(n); } }...

Conclusion

Java pattern programs are a great way to learn and practice coding skills. They help you understand loops, nested loops, and how to think logically to solve problems. Whether you are a beginner or an experienced programmer, practicing pattern programs can improve your Java skills. So, keep coding, experimenting with different patterns, and enjoy the learning process...

Java Pattern Programs – FAQ

What are Java Pattern Programs?...