Infa

public class Cw {
    /*

    ZADANIE 1

    */
    private static void Show(int Wartosc)
    {
        System.out.println(Wartosc);

    }
    private static void Zadanie1()
    {
        System.out.println("Zadanie1");
        int Wartosc = 10;
        Show(Wartosc);
        System.out.println();
    }

    /*

    ZADANIE 2

    */
    private static void modifyValue(int Wartosc)
    {
        System.out.println(Wartosc);
        Wartosc *= 5;
        System.out.println(Wartosc);
        System.out.println();
    }
    private static void Zadanie2()
    {
        System.out.println("Zadanie2");

        int wrt = 5;
        modifyValue(5);
    }

    /*

    ZADANIE 3

    */
    private static void ZliczZnak(char []cTab, char Znak)
    {
        int Counter = 0;
        for(int i=0; i<cTab.length; i++)
        {
            if(cTab[i] == Znak)
                Counter++;
        }
        System.out.println(Counter);
        System.out.println();
    }
    private static void Zadanie3()
    {
        System.out.println("Zadanie3");

        char []cTab = "Ala ma kota".toCharArray();
        ZliczZnak(cTab, 'a');
    }

    /*

    ZADANIE 4
    */
    private static void display(char[][] tab)
    {
        for(int y=0; y<tab.length; y++)
        {
            for(int x=0; x<tab[y].length; x++)
            {
                System.out.print(tab[y][x] + " ");
            }
            System.out.println("");
        }
        System.out.println("");
    }

    private static void fillRow(char[][] tab, int row, char val)
    {
        for(int x=0; x<tab[row].length; x++)
            tab[row][x] = val;
    }
    private static void fillCol(char[][] tab, int col, char val)
    {
        for(int y=0; y<tab.length; y++)
            tab[y][col] = val;
    }
    private static void fillRowFromTo(char[][] tab, int row, int from, int to, char val)
    {
        if(to>tab[row].length)
            to = tab[row].length;
        for(int x=from; x<= to; x++)
            tab[row][x] = val;
    }
    private static void fillColFromTo(char[][] tab, int col, int from, int to, char val)
    {
        if(to>tab.length)
            to = tab.length;
        for(int y=from; y<=to; y++)
            tab[y][col] = val;
    }
    private static void fillRowFromTo(char[][] tab, int row, int[] pos, char val)
    {
        for(int i=0; i<pos.length; i++)
        {
            tab[row][pos[i]] = val;
        }
    }
    private static void fillColFromTo(char[][] tab, int col, int[] pos, char val)
    {
        for(int i=0; i<pos.length; i++)
        {
            tab[pos[i]][col] = val;
        }
    }
    private static void Zadanie4()
    {
        System.out.println("Zadanie4");
        char[][] tab = new char[20][20];

        for(int i=0; i<10; i++)
            fillRowFromTo(tab, i, 0, 9, '0');

        /*  1 2 3 4 5 6 7 8 9 10
        1   o - o o o o o o o o
        2   o - o - - - - - - o
        3   o - o - o o o o - o
        4   o - o - o - - o - o
        5   o - o - o - - o - o
        6   o - o - : ) - o - o
        7   o - o - - - - o - o
        8   o - o o o o o o - o
        9   o - - - - - - - - o
        10  o o o o o o o o o o
        */

        fillColFromTo(tab, 1, 0, 8, '-');
        fillColFromTo(tab, 8, 1, 8, '-');
        fillColFromTo(tab, 3, 1, 6, '-');
        fillColFromTo(tab, 6, 3, 6, '-');
        fillColFromTo(tab, 5, 3, 4, '-');

        fillRowFromTo(tab, 1, 3, 7, '-');
        fillRowFromTo(tab, 6, 3, 5, '-');
        fillRowFromTo(tab, 8, 1, 7, '-');

        fillRowFromTo(tab, 5, 4, 4, ':');
        fillRowFromTo(tab, 5, 5, 5, ')');

        display(tab);
    }


    public static void main(String[] args)
    {
        Zadanie1();
        Zadanie2();
        Zadanie3();
        Zadanie4();
    }
}