8.1.. Napisati program za ispis trougla kao na slici sa željenim brojem redova:
.

Opis programa: Na slici je prikazan odnos redova i kolona.

Slika 1. Sporedna dijagonala i+j = n+1

Listing programa:

//08514006
package zadatak;
import java.util.Scanner;
public class P08514006 {

		Scanner input = new Scanner(System.in);

		System.out.print("Unesi n ");
		int n = input.nextInt();

		for (int i = 1; i <= n; i++) {
			for (int j = 1; j <= n; j++) {
				if ((i+j) < (n+1))
					System.out.print(" ");
				else
					System.out.print("x");
			}
			System.out.println();
		}
	}
}

II Varijanta
//08514006
package zadatak;
import java.util.Scanner;
public class P08514006 {

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

		System.out.print("Unesi n ");
		int n = input.nextInt();
		for (int i=1; i<=n; i++){
			for (int j=0; j<=n-i; j++) {
				System.out.print(" ");
			}
			for (int k=1; k<=i; k++){
				System.out.print("x");
			}
			System.out.println();
		}
}}

Ispis na ekranu:

Index