[HELP] TRIANGLE!

Code :

---

OUTPUT
*
**
***
****
*****
 
*****
****
***
**
*
 
        *
      **
    ***
  ****       
*****
 
*****
  ****
    ***
      **
        *

---

i have made the two triangles the program goes like this.
FOR LOOP.

Code :

---

import java.io.*;
 
public class NewClass {
 
    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(" ");
        }
        System.out.println("");
        for (int i = 1; i <= 5; i++) {
            for (int j = i; j <= 5; j++) {
                System.out.print("*");
            }
            System.out.println(" ");
        }
 
    }
}

---

Please Help me i need it tomorrow :((

i need the FOR LOOP of the other two triangles :( please help

So... whats the question?

whats the for loop of

Code :

---

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

---

No one is going to do your homework for you, whether you need it by tomorrow or not. We may however, help you to learn...what is the expected output, and what are you getting?

Hint:

Look at the number of spaces to stars in each line. How do they change from line to line? Also, what are the initial conditions(initial number of spaces/stars)

I'll let you figure out what the relationship is and how to implement these.

Its just an exercise that my brother is telling me. i got no idea so i ask. its a forum though, just asking! :(

thanks helloworld922 but its much better if you tell me the answer.

please help me

Quote:

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Originally Posted by kramista

Its just an exercise that my brother is telling me. i got no idea so i ask. its a forum though, just asking! :(

---

If that's your small brother, stamp on him. If your big brother, prepare to be stamped on.

And btw we've already heard pretty nearly all the "It's not homework!" disclaimers that have ever been thought of. So here's a challenge for you: come up with something uniquely entertaining and believable*, and I'll guide you till your code is complete.

* Not "I'm teaching a class and need to know this myself' -- that's been used about a gazillion times.

db

Tricky! Have you attempted this? Please post what code you have so we can guide you...

If it's a personal project, why would it be so urgent?

If you do what I suggested, you should be able to see a very easy pattern to pick out, and then code your program to follow that pattern.

Here's a sample of printing out an isoceles triangle.

Code :

---

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

---

Number of rows? n
number of start spaces? n - 1
number of start starts? 1
how does the number of spaces change from row to row? each successive row has 1 less space
how does the number of stars change from row to row? each successive row gets 2 more spaces

Now, the pseudo-code:

Code Pseudo:

---

number of rows = n
initial number of stars = 1
initial number of spaces = rows - 1
for every row:
print out number of spaces spaces
print out number of stars stars
decrease number of spaces by 1
increase number of stars by 2
end for loop

---

Now you apply this process to your problem.