Star Pattern Programs In Java

Java Star Pattern Programs

Here we will discuss some star pattern programs in java which will help you in java programming questions in an interview.

There can be any kind of pattern programs in java like number pattern programs in java, alphabet programs in java, etc. But here we will discuss only star(*) pattern programs in java.

so let's start with it.

Star Pattern 1:

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

Solution:

class Demo1
{
public static void main(String args[])
{
for(int i = 1; i<=8; i++)
{
for(int j = 1; j<i; j++)
{
System.out.println("*");
}
System.out.println();
}
}
}

Star Pattern 2:


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

Solution:

class Demo2
{
public static void main(String args[])
{
for(int i =8; i>=1; i--)
{
for(int j = 1; j<=i; j++)
{
System.out.print("*");
}
System.out.println();
}
}
}

Star Pattern 3 :

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

Solution:

class Demo3
{
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();
}
}
}

Star Pattern 4:

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

Solution:

class Demo4
{
public static void main(String args[])
{
for(int i = 5; i>=1; i--)
{
for(int j = 1; j<i; j++)
{
System.out.print(" ");
}
for(int k = 5; k>=i; k--)
{
System.out.print("*");
}
System.out.println("");
}
}
}

Star Pattern 5:

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

Solution:


class Demo5
{
public static void main(String args[])
{
for(int i = 5; i>=1; i--)
{
for(int j = 5; j>i; j--)
{
System.out.print(" ");
}
for(int k = 1; k<=i; k++)
{
System.out.print("*");
}
System.out.println("");
}
}
}

Star Pattern 6:

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

Solution:

class Demo6
{
public static void main(String args[])
{
for(int i = 1; i<=5; i++)
{
for(int j = i; j<5; j++)
{
System.out.print(" ");
}
for(int k = 1; k<(i*2); k++)
{
System.out.print("*");
}
System.out.println("");
}
for(int i = 4; i>=1; i--)
{
for(int j = 5; j>i; j--)
{
System.out.print(" ");
}
for(int k = 1; k<(i*2); k++)
{
System.out.print("*");
}
System.out.println("");
}
}
}

Star Pattern 7:

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

Solution:

class Demo7
{
public static void main(String args[])
{
for(int i = 5; i>=1; i--)
{
for(int j = 5; j>i; j--)
{
System.out.print(" ");
}
for(int k = 1; k<(i*2); k++)
{
System.out.print("*");
}
System.out.println("");
}
}
}

Read More:

Alphabet Pattern Programs in Java.
Top 10 Java Number pattern Programs.
Top 10 Java Programming Interview Questions.
Basic Java Programs.

I hope, this star pattern in java will help you to increase your logical skill so that you can make your own desired star pattern programs in java.