star pattern printing logic in java

Posted by Somesh Shinde On Saturday, 30 July 2016 5 comments

Printing Star Patterns In Java


In Java language you can print triangle shape using for loop and also using while loop, here i will show you in simple way to print triangle.
print star pattern in java

Print star pattern in java

class StarTriangle
{
public static void main(String[] args) 
{
int i,j,k;
for(i=1; i<=5; i++)
{
for(j=4; j>=i; j--)
{
System.out.print(" ");
}
for(k=1; k<=(2*i-1); k++)
{
System.out.print("*");
}
System.out.println("");
}
}
}

Output

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

Syntax to compile and run java program

Syntax

for compile -> c:/>javac StarTriangle.java
for run -> c:/>java StarTriangle

Explanation of Code

  • System.out.print("....."): are used for display message on screen or console but cursor not move in new line.
  • System.out.println("....."): are used for display message on screen or console cursor move in new line.

Example

class Star 
{
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();
}
}
}

Output

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

Example

class Star 
{
public static void main(String[] args) 
{
int i,j;
for(i=1; i<=6; i++)
{
for(j=1; j<i; j++)
{
System.out.print("*");
}
System.out.println();
}
}
}

Output

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

Example

class Star 
{
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();
}
}
}

Output

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

Example

class Star 
{
public static void main(String[] args) 
{
int i, j, k;
for(i=5;igt;=1;i--)
{
for(j=1;jlt;i;j++)
{
System.out.print(" ");
}
for(k=5;k>=i;k--)
{
System.out.print("*");
}
System.out.println();
}
}
}

Output

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

Example

class Star 
{
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();
}
}
}

Output

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

Example

class Star 
{
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();
}
for(i=4;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();
}
}
}

Output

        *
      * * * 
    * * * * *
  * * * * * * *
* * * * * * * * *
  * * * * * * *
    * * * * *
      * * *
        *
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5 comments:

hitesh kumar said...
This comment has been removed by the author.
13 May 2020 at 10:49
hitesh kumar said...

Above Complete code is copied from <a href="https://www.sitesbay.com/java-program/java-triangle-of-star:>Print Star Pattern in Java</a> please remove this code

13 May 2020 at 10:51
hitesh kumar said...
This comment has been removed by the author.
13 May 2020 at 10:51
hitesh kumar said...

Above Complete code is copied from Print Star Pattern in Java please remove this code

13 May 2020 at 10:52
hitesh kumar said...

Above Complete code is copied from Print Star Pattern in Java please remove this code

13 May 2020 at 10:52

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