how to make this as an output ?

[naved momin]

how to print this

[fred rosenberger]

What have you tried?

[naved momin]

fred rosenberger wrote:What have you tried?

soory i didnt mentioned my code
want to get above output by modifying this code

class sample4
{
	public static void main(String[] args)
	{
		for (int i = 1 ; i<=4 ; i++)
		{
			for(int j=1 ; j<=i ; j++)
			{

				System.out.print("*");										}

			System.out.println(" ");
			
		}
	}
}

[Hunter McMillen]

dont think of it as trying to print a triangle, think of it as trying to print out a rectangle partially filled with spaces.

----
---*
--**
-***
****

Now look at the number of spaces (marked by '-' ) versus the number of stars on each line. There is a pattern.

Hunter


EDIT: fixed typo

[fred rosenberger]

to take Hunters comment just a little further, I would look at the number of spaces vs the number of star vs. what line number you are printing.

And, I'd start counting the lines on line 0. So, fill this out:

on line 0, i have ___ spaces and ___ stars
on line 1, i have ___ spaces and ___ stars
etc.

[naved momin]

Hunter McMillen wrote:dont think of it as trying to print a triangle, think of it as trying to print out a rectangle partially filled with spaces.

----
---*
--**
-***
****

Now look at the number of spaces (marked by '-' ) versus the number of stars on each line. There is a pattern.

Hunter


EDIT: fixed typo

but i need to implement this only with the help of " for " loop , no other loops or control structures.
then how to do this , the above programe is typing the stars from right to left
but in this we need to put a 4 empty space in 0 line and then we have to reduce the space , how to achieve this with for loops.

[Raymond Tong]

naved momin wrote:but i need to implement this only with the help of " for " loop , no other loops or control structures.
then how to do this , the above programe is typing the stars from right to left
but in this we need to put a 4 empty space in 0 line and then we have to reduce the space , how to achieve this with for loops.

You know how to print stars "*", you should also know how to print spaces " ".
You know how to increase number of stars, you should also know how decrease number of spaces.
Follow fred rosenberger advice on "fill in the blanks" before code.
Coding is simply turning algorithm into program, you have to find out the algorithm first.

[naved momin]

Hunter McMillen wrote:dont think of it as trying to print a triangle, think of it as trying to print out a rectangle partially filled with spaces.

----
---*
--**
-***
****

Now look at the number of spaces (marked by '-' ) versus the number of stars on each line. There is a pattern.

Hunter


EDIT: fixed typo

i have made it ,. tricky , but still succeded just with the help of for loop

class sample4
{
	public static void main(String[] args)
	{
		outer: for (int i = 1 ; i<=4 ; i++)
		{
			
				System.out.print("   ");
				System.out.print("*");
				System.out.println("");
				
			for(int j=1 ; j<=i ; j++)
			{
				System.out.print("  ");
				System.out.print("**");
				System.out.println("");
										
				for(int k=1;k<=j;k++)
				{
					System.out.print(" ");
					System.out.print("***");
					System.out.println("");
					for(int l=1;l<=k;l++)
					{
						System.out.print("");
						System.out.print("****");
						break outer;					
					}	
			}	}
		
			

				
			
		}
	}
}

[Raymond Tong]

naved momin wrote:
i have made it ,. tricky , but still succeded just with the help of for loop

Try to remove all the for statements and leave only the print and println statements.
There is a way to make use of for loop to print space x times and print star y times where x + y = 4.

[naved momin]

Raymond Tong wrote:

naved momin wrote:
i have made it ,. tricky , but still succeded just with the help of for loop

Try to remove all the for statements and leave only the print and println statements.
There is a way to make use of for loop to print space x times and print star y times where x + y = 4.

i didnt get you actually
as you had said , i have tried , will you throw some solution to this .

class Starsample

{
	public static void main(String[] args)
	{
		 for (int i = 1 ; i<=4 ; i++)
		{
			int x = 3;
			int  y ='*';
			System.out.print("*");
			System.out.println(" ");

						

				
			
		}
	}
}

it is just printing a star one below the other.

[Raymond Tong]

naved momin wrote:i didnt get you actually
as you had said , i have tried , will you throw some solution to this .
it is just printing a star one below the other.

I meant the multiple for loops with label break didn't really make use of the power of for loops.
i.e. You have for loop statement in your code but they all iterate once.

Try to turn the following pseudocode into java code
step 1. iterate (x) from 1 to 4
step 2. print (4-x) spaces
step 3. print (x) stars
step 4. print "line break and/or carriage return"

[Campbell Ritchie]

Raymond Tong wrote: ... step 4. print "line break and/or carriage return"

You mean "Terminate[s] the current line by writing the line separator string".