Pattern 2 in Java

        *
* * *
* * * * *
* * *
*




class P15
{
public static void main(String args[])
{
int ch,i,j,in=1;


for(i=1;i<=5;i++)
{
for(j=1;j<=5-i&&i<=3;j++)
   System.out.print("\t");      //to leave space before stars for upper triangle


for(j=1;j<=i-1&&i>3;j++) //to leave space before stars for lower triangle
             System.out.print("\t");      


for(j=1;j<=in;j++)       //to display stars
           System.out.print("*\t");


if(i+1<=3)
in=in+2;                //to decide no of stars in each row
else
in=in-2;
System.out.print("\n");
}
}
}