P1W1 oef driehoek & extremen

DRIEHOEK
____________
package driehoek;

import java.util.Scanner;

public class driehoek {
    public static void main(String[] args){
        int hoogte;
        int i=0;
        int j=0;
        Scanner keyboard = new Scanner(System.in);

        System.out.print("Geef de hoogte van je driehoek in: ");
        hoogte = keyboard.nextInt();
        while(i<=hoogte)
        {
            while(j<i)
            {
                System.out.print("42 ");
                j++;
            }
            System.out.println();
            i++;
            j = 0;
        }


    }
}


EXTREMEN
___________
package extremen;

import java.util.Scanner;

public class extremen {
    public static void main(String[] args){
        int kleinste;
        int grootste;
        int input;
        Scanner keyboard = new Scanner(System.in);

        System.out.print("Geef je getal in, type -1 om te stoppen.");
        input = keyboard.nextInt();
        kleinste = input;
        grootste = input;

        while(input!= -1)
        {
            if(input<kleinste)
            {
                kleinste = input;
            }
            if(input>grootste)
            {
                grootste = input;
            }
            input = keyboard.nextInt();
        }
        System.out.print("Uw grootste getal was:" + grootste);
        System.out.println();
        System.out.print("Uw kleinste getal was:" + kleinste);


    }
}