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Copy pathRightTriangle2.java
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41 lines (37 loc) · 1.2 KB
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package RightTriangle2;
import java.util.Scanner;
public class RightTriangle2 {
static char symbol;
static int rows = 0;
public static void main(String[] args) {
if (args.length > 0) {
if (args.length == 1)
rows = Integer.parseInt(args[0]);
else
System.out.println("[!] Available arguments: [rows (integer)] ");
} else {
Scanner scan = new Scanner(System.in);
System.out.print("[<-] Enter the number of rows: ");
rows = scan.nextInt();
scan.close();
}
starPrinter(rows);
} // end of main method
public static void starPrinter(int rows) {
System.out.println("\n[->] Output: \n");
if (rows < 1)
System.out.println("[!] Number of Rows must be greater than 1.");
else {
for (int i = 1; i <= rows; i++) {
if (i % 2 == 0)
symbol = 'o';
else
symbol = 'x';
for (int j = 1; j <= i; j++)
System.out.print(" " + symbol + " ");
System.out.println();
}
}
System.out.println();
}
}