Create a triangle out of stars using only recursion

Question

I need to to write a method that is called like printTriangle(5);. We need to create an iterative method and a recursive method (without ANY iteration). The out

Answer 1

package playground.tests;

import junit.framework.TestCase;

public class PrintTriangleTest extends TestCase {
    public void testPrintTriangle() throws Exception {
        assertEquals("*\n**\n***\n****\n*****\n", printTriangleRecursive(5, 0, 0));
    }

    private String printTriangleRecursive(int count, int line, int character) {
        if (line == count)
            return "";
        if (character > line)
            return "\n" + printTriangleRecursive(count, line + 1, 0);
        return "*" + printTriangleRecursive(count, line, character + 1);
    }

}