I need your help! This is a java program about "Method" ,and i want to make a triangle pattern. Please have a look.Thank you!

Question

import java.util.Scanner;

public class gh{

public static void goodboy(char c,int i){
while(i-- >0);
System.out.print(c);
}

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

System.out.println("Let us display the level of the triangle!");
System.out.println();
System.out.println("What is the level of triangle?");
System.out.println();
System.out.print("n=");
int n=input.nextInt();
System.out.println("The level of triangle : "+n);
System.out.println();

for(int i=1;n>=i;i++){

goodboy(' ',n-1);
goodboy('*',(i*2)-1);
System.out.println();

}
}
}

I want to make a triangle pattern by using "Method" in java.
Like this one👇👇👇👇👇

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

Answer 1

Well, string is there only to make changing of symbol that makes the pyramid possible. I wanted to use char after all, but I forgot the name of scanner's method that reads next char, so I just used string of one character instead.

And about your code, I laughed so hard when I found the error. You got trolled by the oldest enemy of all programmers - the semicolon. The semicolon after the while loop shouldn't be there. The semicolon is just executed x times and character is printed then only once. The second error is in your for loop. goodboy(' ',n-1); must be replaced with goodboy(' ',n-i);

Answer 2

Here you go. Let me know if you need any further explanation about how the program works.
https://code.sololearn.com/cKbHPi42K707/?ref=app

Answer 3

Sorry i am late,i have not learned how to use "String".Thank you for your program.

I do not know what is problem in my program.It seems normal,but i can not get the result like the example

Answer 4

Hey friend you are right!

Answer 5

I laughed too😂