Stars printing programs

1.Write a Java program to print stars in Triangular shape using nested FOR LOOP.

Program:
class Star1
{
public static void main(String args[])
{
for(int i=1;i<=5;i++)
{
for(int j=1;j<=5-i;j++)
System.out.print(" ");

for(int j=1;j<=i;j++)
System.out.print("*");

System.out.println();
}
}
}

O/P:

2.Write a Java program to print stars in Triangular shape using nested FOR LOOP.

Program:
class Star2
{
public static void main(String args[])
{
for(int i=1;i<=5;i++)
{
for(int j=1;j<=i;j++)
{
System.out.print("*");
}
System.out.println();
}
}
}

O/P:

3.Write a Java program to print Pyramid stars using nested FOR LOOP.

Program:

class PyramidStarPrint
{
public static void main(String args[])
{

for(int i=1;i<=5;i++)
{
for(int j=1;j<=5-i;j++)

System.out.print(" ");

for(int j=1;j<=2*i-1;j++)

System.out.print("*");

System.out.println();
}
}
}

O/P: