Pattern Example-1
Pattern
******** ******* ****** ***** **** *** ** *
package com.w3schools;
public class Test {
public static void main(String[] args) {
for (int row = 8; row >= 1; --row) {
for (int col = 1; col <= row; ++col) {
System.out.print("*");
}
System.out.println();
}
}
}
Output
********
*******
******
*****
****
***
**
*
Pattern Example-2
Pattern
* ** *** **** ***** ****** ******* ********
package com.w3schools;
public class Test {
public static void main(String[] args) {
for (int row = 1; row <= 8; ++row) {
for (int col = 1; col <= row; ++col) {
System.out.print("*");
}
System.out.println();
}
}
}
Output
*
**
***
****
*****
******
*******
********
Pattern Example-3
Pattern
*
***
*****
*******
*********
***********
*************
package com.w3schools;
public class Test {
public static void main(String[] args) {
int number = 7;
int count = number - 1;
for (int k = 1; k <= number; k++) {
for (int i = 1; i <= count; i++)
System.out.print(" ");
count--;
for (int i = 1; i <= 2 * k - 1; i++)
System.out.print("*");
System.out.println();
}
}
}
Output
*
***
*****
*******
*********
***********
*************
Pattern Example-4
Pattern
*
***
*****
*******
*********
*******
*****
***
*
package com.w3schools;
public class Test {
public static void main(String[] args) {
int number = 5;
int count = number - 1;
for (int k = 1; k <= number; k++) {
for (int i = 1; i <= count; i++)
System.out.print(" ");
count--;
for (int i = 1; i <= 2 * k - 1; i++)
System.out.print("*");
System.out.println();
}
count = 1;
for (int k = 1; k <= number - 1; k++) {
for (int i = 1; i <= count; i++)
System.out.print(" ");
count++;
for (int i = 1; i <= 2 * (number - k) - 1; i++)
System.out.print("*");
System.out.println();
}
}
}
Output
*
***
*****
*******
*********
*******
*****
***
*
Pattern Example-5
Pattern
*
**
***
****
*****
******
*******
********
package com.w3schools;
public class Test {
public static void main(String[] args) {
int val = 8;
for (int i = 1; i <= val; i++) {
for (int j = 1; j <= val - i; j++) {
System.out.print(" ");
}
for (int k = 1; k <= i; k++) {
System.out.print("*");
}
System.out.println("");
}
}
}
Output
*
**
***
****
*****
******
*******
********
Pattern Example-6
Pattern
* * ** ** *** *** **** **** ***** ***** ****** ****** ******* ******* ******** *********
package com.w3schools;
public class Test {
public static void main(String[] args) {
int number = 8;
for (int i = 0; i < number; ++i) {
for (int j = 0; j <= i; ++j) {
System.out.print("*");
}
if (i != number - 1) {
System.out.print(" ");
} else {
System.out.print(" *");
}
for (int j = 0; j <= i; ++j) {
System.out.print("*");
}
System.out.println();
}
}
}
Output
* *
** **
*** ***
**** ****
***** *****
****** ******
******* *******
******** *********
Pattern Example-7
Pattern
******* * * * * * * * * * * *******
package com.w3schools;
public class Test {
public static void main(String[] args) {
int number = 7;
for (int i = 0; i < number; i++) {
if (i == 0 || i == 6) {
for (int j = 0; j < number; j++) {
System.out.print("*");
}
System.out.println();
}
if (i >= 1 && i <= 5) {
for (int j = 0; j < number; j++) {
if (j == 0 || j == 6) {
System.out.print("*");
} else if (j >= 1 && j <= 5) {
System.out.print(" ");
}
}
System.out.println();
}
}
}
}
Output
*******
* *
* *
* *
* *
* *
*******
Pattern Example-8
Pattern
* ***************** * ** ******** ******* ** *** ******* ****** *** **** ****** ***** **** ***** ***** **** ***** ****** **** *** ****** ******* *** ** ******* ********** *********
package com.w3schools;
public class Test {
private static void forStars(int count) {
for (int i = 0; i < count; ++i)
System.out.print("*");
}
private static void forSpaces(int count) {
for (int i = 0; i < count; ++i)
System.out.print(" ");
}
public static void main(String[] args) {
int n = 8;
for (int i = 0; i < n; ++i) {
forStars(i + 1);
forSpaces(n - i - 1);
forStars(n - i + 1);
forSpaces(2 * i);
forStars(n - i);
forSpaces(n - i - 1);
forStars(i + 1);
System.out.println();
}
}
}