Thread: Half Triangle printout

First line prints one star
Second line prints two stars
Third line prints three stars
Fourth line prints ? stars

See a pattern? Once you see the pattern, how might you program it? There are different ways, but one is to use two for loops, one nested inside the other. The outside loop keeps track of the line being printed and the inside loop the number of stars for each line.

See if you can modify your existing code to do that. When you post your updated code, please post it in code tags.

hello,
for rows and columns output you would use nested loops. this is an array-like-value resulting from your code so the for loop you have written is good one step towards your program however providing the next loop should have more thinking in handling the out put. you may need extra mind workout for this, keywords: you would use while loop and check if certain index at the desired value? so you would break the loop and shift the output to the next line? have a brain exercise on that. cheers

Hey Guys
Thanks for the Replies,
I'm going to work on it now

Write a program that draws a right angle triangle, using characters, with dimensions given as
command line arguments. If you're clever, you can use dierent characters to reduce the \jaggies" on the sloping edge. Examples:

$ java TriAlias 5 5
O
OO
OOO
OOOO
OOOOO

java TriAlias 60 5
OOOOooooooo...
OOOOOOOOOOOOOOOOOOooooooo...
OOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOooooooo...
OOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOoooo ooo...
OOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO OOOOOOOOOOooooooo...

Here is what iv Reattempted. Its printing rows and columns but not in pattern, not sure how to implement this through the code iv got so far. Im such a noob.

MY REAMMENDED Code

public class KudoTry{
public static void main (String[] args){

int row = Integer.parseInt(args[0]),
col = Integer.parseInt(args[1]);

for(int r = 0; r < row; r++){
for(int c = 0; c < col; c++){
System.out.print("*");
}
System.out.println();
}


}
}

hieee i am just posting this reply so that you can review your code , as it is not working as required mentioned above. when a user enter arguments as 1, 2 or 1,3 or 1,4 or 1,5 or........ 1,100 the output is single line. when a user enter arguments as 2,1 or 2, 2 or 2,3 or 2,4 or 2,5 or........ 2,100 the output is double line. and the same with 3,1 or 3,2 or 3,3.
The above output of your program can be printed even using the single argument as i posted the code earlier. Thank you