All star patterns using java programming Language


Introduction

In this article, I have explained the list of all Star (*) pattern programs in java programming language. In this demo I have used NetBeans IDE 8.2 for debugging purpose. But you can use any java programming language compiler as per your availability..


techstudy.org

HP 15 Core i3 7th gen Laptop(4GB, 1TB HDD, Windows 10) | Rs. 31,490


Star pattern : 1

*
**
***
****
*****

 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
 
class StarTriangle
{
public static void main(String[] args) 
{
      int i, j;
      for(i=1;i<=5;i++)
      {
      for(j=1;j<=i;j++)
      {
      System.out.print("*");
                                }
      System.out.println("");
  }
}
}

Star pattern : 2

*

**

***

****

*****

 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
 
class StarTriangle {
public static void main(String[] args) {
    int i, j, k;
    for (i = 5; i >= 1; i--) {
        for (j = 1; j < i; j++) {
          System.out.print(" ");
          }
          for (k = 5; k >= i; k--) {
                System.out.print("*");
    }

    System.out.println();
           }

    }
}

Star pattern : 3

*****
****
***
**
*
 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
 
class StarTriangle {
    public static void main(String[] args) {
    int i, j;
    for (i = 5; i >= 1; i--) {
    for (j = 1; j <= i; j++) {
    System.out.print("*");

          }
   System.out.println("");
   }
}
}

Star pattern : 4

*****

****

***

**

*

 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
19
 
class StarTriangle
{
public static void main(String[] args) 
{
    int i, j, k;
    for(i=5;i>=1;i--)
    {
    for(j=5;j>i;j--)
    {
            System.out.print(" ");
                }
                for(k=1;k<=i;k++)
                {
            System.out.print("*");
    }
    System.out.println("");
    }
}
}

Star pattern : 5

*****
*****
*****
*****
***** 
 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
 
class StarTriangle
    {
    public static void main(String[] args) 
    {
    int i, j;
    for(i=1; i<=5; i++)
    {
    for(j=1; j<=5; j++)
    {
        System.out.print("*");
    }
    System.out.println("");
    }
}

}

Star pattern : 6

*****

*****

*****

*****

*****

 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
 
class StarTriangle
{
public static void main(String[] args) {
    int i, j;
    for (i = 1; i <= 5; i++) {
    for (j = 1; j < i; j++) {
        System.out.print(" ");
    }
        for (j = 1; j <= 5; j++) {
    System.out.print("*");
    }
    System.out.println("");
    }
}
}
     

Star pattern 7

*

**

* *

* *

* * * * *

 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
 
class StarTriangle {
public static void main(String[] args) {
    int i, j;
    for (i = 1; i <= 5; i++) {
    for (j = 1; j <= i; j++) {
        if (j == 1 || j == i || i == 5) {
        System.out.print("*");
    } else {
    System.out.print(" ");
    }
    }
    System.out.println("");
    }
}
}

Star pattern 8

*

**

* *

* *

* * * * *

 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
 
class StarTriangle {
public static void main(String[] args) {
        int i, j;
        for (i = 1; i <= 5; i++) {
        for (j = 1; j <= i; j++) {
    if (j == 1 || j == i || i == 5) {
    System.out.print("*");
} else {
    System.out.print(" ");
    }
    }
    System.out.println("");
    }
}
}

Star pattern 9

*

***

*****

*******

*********

 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
 
class StarTriangle {
public static void main(String[] args) {
    int i, j, k;
    for (i = 1; i <= 5; i++) {
    for (j = i; j < 5; j++) {
        System.out.print(" ");
    }
        for (k = 1; k < (i * 2); k++) {
    System.out.print("*");
    }
    System.out.println("");
    }
}
}

Star pattern 10

*********

*******

*****

***

*

 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
 
class StarTriangle {
public static void main(String[] args) {
        int i, j, k;
        for (i = 5; i >= 1; i--) {
        for (j = 5; j > i; j--) {
    System.out.print(" ");
    }
    for (k = 1; k < (i * 2); k++) {
        System.out.print("*");
    }
    System.out.println("");
    }
}
}

Star pattern 11

*

**

**

**

*********

 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
 
class StarTriangle {
public static void main(String[] args) {
        int i, j;
        for (i = 1; i <= 5; i++) {
        for (j = i; j < 5; j++) {
    System.out.print(" ");
    }
        for (j = 1; j <= (2 * i - 1); j++) {
        if (i == 5 || j == 1 || j == (2 * i - 1)) {
    System.out.print("*");
    } else {
    System.out.print(" ");
    }
    }

    System.out.println("");
}
}

Star pattern 12

*********

**

**

**

*

 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
 
class StarTriangle {
public static void main(String[] args) {
        int i, j;
        for (i = 5; i >= 1; i--) {
        for (j = i; j < 5; j++) {
    System.out.print(" ");
    }
        for (j = 1; j <= (2 * i - 1); j++) {
        if (i == 5 || j == 1 || j == (2 * i - 1)) {
        System.out.print("*");
        } else {
    System.out.print(" ");
    }
    }

    System.out.println("");
}
}

Star pattern 13

*
**
***
****
*****
****
***
**
* 
 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
 
class StarTriangle {
public static void main(String[] args) {
    int i, j;
    for (i = 1; i <= 5; i++) {
    for (j = 1; j <= i; j++) {
        System.out.print("*");
    }
    System.out.println("");
        }
    for (i = 5; i >= 1; i--) {
    for (j = 1; j < i; j++) {
    System.out.print("*");
    }
    System.out.println("");
    }
}
}

Star pattern 14

*

**

***

****

*****

****

***

**

*

 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
19
20
21
22
 
class StarTriangle {
public static void main(String[] args) {
    int i, j;
    for (i = 1; i <= 5; i++) {
    for (j = i; j < 5; j++) {
        System.out.print(" ");
    }
    for (j = 1; j <= i; j++) {
    System.out.print("*");
    }
        System.out.println("");
    }
    for (i = 5; i >= 1; i--) {
        for (j = i; j <= 5; j++) {
    System.out.print(" ");
    }
        for (j = 1; j < i; j++) {
    System.out.print("*");
    }
    System.out.println("");
    }
}

Star pattern 15

*

***

*****

*******

*********

*******

*****

***

*

 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
 
class StarTriangle {
public static void main(String[] args) {
    int i, j;
    for (i = 1; i <= 5; i++) {
    for (j = i; j < 5; j++) {
        System.out.print(" ");
    }
        for (j = 1; j <= (2 * i - 1); j++) {
        System.out.print("*");
    }
    System.out.println("");
    }
    for (i = 5; i >= 1; i--) {
        for (j = i; j <= 5; j++) {
    System.out.print(" ");
    }
    for (j = 2; j < (2 * i - 1); j++) {
        System.out.print("*");
    }
        System.out.println("");
    }

}
}

Star pattern 16

*

* *

*    *

*       *

*        *

*       *

*    *

* *

*

 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
 
class StarTriangle {
public static void main(String[] args) {
    int i, j;

    for (i = 1; i <= 5; i++) {
    for (j = 5; j > i; j--) {
        System.out.print(" ");

    }
        System.out.print("*");
    for (j = 1; j < (i - 1) * 2; j++) {
        System.out.print(" ");

    }
        if (i == 1) System.out.println("");
    else System.out.println("*");
    }

    for (i = 4; i >= 1; i--) {
        for (j = 5; j > i; j--) {
        System.out.print(" ");
    }
        System.out.print("*");
    for (j = 1; j < (i - 1) * 2; j++) {
    System.out.print(" ");
    }
        if (i == 1) System.out.println("");
    else System.out.println("*");
    }

}
}




Related Topics


10 January 2019 3071       Written By: Rohit




Popular Posts

About Us

Tech Study passionately delivers stylish and innovative information to programmer and technology lovers. Tech Study is a young and innovative mind having the zeal to do something useful and creative. Our main goal is to offer step by step debugging solutions for programmers.

Read More

Subscribe

Subscribe and get a most valuable piece of content delivered to your inbox.

© 2020 Tech Study. All rights reserved | Developed by Tech Study| Privacy Policy | Sitemap