Pattern 1, 2, 3 and 4

Pattern 1  

public class p10 
{
	public static void main(String[] args) 
	{
		for(int i=1; i<=5; i++)
		{
			for(int j=1; j<=5;j++)
			{
				if(i<=j)
					System.out.print("* ");
				else
					System.out.print("  ");
			}
		System.out.println();
		}
	}
}

OUTPUT

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

Pattern 2  

 
public class P30 
{
	public static void main(String[] args) 
	{
		for(int i=5; i>0; i--)
		{
			for(int j=1; j<=5;j++)
			{
				if(i>=j)
					System.out.print("* ");
				else
					System.out.print("  ");
			}
		System.out.println();
		}
	}
}

OUTPUT

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

Pattern 3  

public class P28 
{
	public static void main(String[] args) 
	{
		for(int i=1; i<=5; i++)
		{
			for(int j=1; j<=5;j++)
			{
				if(i>=j)
					System.out.print("* ");
				else
					System.out.print("  ");
			}
		System.out.println();
		}
	}
}

OUTPUT

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

Pattern 4  

public class P29 
{
	public static void main(String[] args) 
	{
		for(int i=5; i>0; i--)
		{
			for(int j=1; j<=5;j++)
			{
				if(i<=j)
					System.out.print("* ");
				else
					System.out.print("  ");
			}
		System.out.println();
		}
	}
}

OUTPUT

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