Laby3

/*
 * To change this license header, choose License Headers in Project Properties.
 * To change this template file, choose Tools | Templates
 * and open the template in the editor.
 */
package lab;

/**
 *
 * @author Ulachy
 */
public class labki {

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
    program1 program1 = new program1();
    System.out.println("********************");
    program2 program2 = new program2();// TODO code application logic here
    }

}

class program1{
    public program1()
    {
        int x,y;
        int[][]a = { { 1, 2 }, { 3, 4 } };
        int b[][] = { { 1, 2 }, { 3 }, {} };
        a[0][0] = 0;
        x = a[1][1];
        System.out.println("Wartość elementu o indeksach 1,1 tablicy a to "+x);
        y = b.length;
        System.out.println("Rozmiar tablicy b to "+y);
        y = b[0].length;
        System.out.println("Rozmiar pierwszego wiersza tablicy b to "+y);
        y = b[1].length;
        System.out.println("Rozmiar drugiego wiersza tablicy b to "+y);
        y = b[2].length;
        System.out.println("Rozmiar trzeciego wiersza tablicy b to "+y);
    }
}

class program2{
    public program2()
    {
        int tab[][] = new int [5][];
        tab[0] = new int[4];
        tab[1] = new int[3];
        tab[2] = new int[2];
        tab[3] = new int[1];
        tab[4] = new int[4];
        int i,j;
        for (i=0;i<tab.length;i++)
        {
            for(j=0;j<tab[i].length;j++)
            tab[i][j]=(int)(100*Math.random());}
        for (i=0;i<tab.length;i++)
        {
            for(j=0;j<tab[i].length;j++)
            System.out.print(tab[i][j]+"\t");
            System.out.println();

        }
    }
}