triangles

[olsane]

hey
i have a little problem, how do i make this two triangle:

O
O O
O O O
O O O O

O
O O
O O O
O O O O

i have to get input from user, that part i have done.
but the problem is loops and how to print the result out.
each letter i justified to the left with 4.

great thanks to anyone that could help me.

public class Oppgave1d {

	public static void main(String[]args) {
		Scanner input = new Scanner(System.in);

		System.out.print("Hvor mange linjer? ");
		int linje = input.nextInt();
		System.out.print("Hvilken bokstav? ");
		char bokstav = input.next().charAt(0);

		for (int i = 0; i < linje; i++) {
			for (int j = 0; j < linje; j++)
				System.out.printf("\n%-4S ", bokstav);
		}
	}
}

[coding101]

for(int i=0;i<4;i++){

for(int j=0;j<=i;j++){
System.out.print("*");
}
System.out.println();
}

[NormR1]

@coding101 How about explaining to the OP the trick in the second for statement.

Spoon(Shovel) feeding a student with code he can copy and paste is not always the best way to get the student to think thru a problem and work out the solution.
You learn by trying and failing. Copy and pasting leaves very little knowledge gain.

[olsane]

one of the triangle got solved, but one remaining.
how can i used this code to get a triangle that look like a pyramid?

[NormR1]

Take a piece of paper and draw the pyramid made of Xs.
Look at the first line: it has some spaces then the X.
Now look at the second line: it has one fewer space and 2 more Xs
And so on.
There is a pattern here. Try to work out how to write a loop that will set the number of spaces and the number of Xs for each line.