java - 3 programy

[JeffoneoN]

Ahoj, som totalna lama z javy a potrebujem nejake tri programy napisane v jave (nemusia byt zlozite staci ak bude program pracovat v poli a pod) dakujem, popripade nejaka symbolicka odmena v podobe piva a pod.

EDIT: mohli by byt zlozitejsie ako napisal dole galen, napr. program vypocita sinus kosinus ci obvod trouholnika (take uz dal kamos tak to nie)

[galen]

program 1:

Kód: Vybrať všetko

class ArrayDemo {
     public static void main(String[] args) {
          int[] anArray;              // declares an array of integers

          anArray = new int[10];      // allocates memory for 10 integers
            
          anArray[0] = 100; // initialize first element
          anArray[1] = 200; // initialize second element
          anArray[2] = 300; // etc.
          anArray[3] = 400;
          anArray[4] = 500;
          anArray[5] = 600;
          anArray[6] = 700;
          anArray[7] = 800;
          anArray[8] = 900;
          anArray[9] = 1000;

          System.out.println("Element at index 0: " + anArray[0]);
          System.out.println("Element at index 1: " + anArray[1]);
          System.out.println("Element at index 2: " + anArray[2]);
          System.out.println("Element at index 3: " + anArray[3]);
          System.out.println("Element at index 4: " + anArray[4]);
          System.out.println("Element at index 5: " + anArray[5]);
          System.out.println("Element at index 6: " + anArray[6]);
          System.out.println("Element at index 7: " + anArray[7]);
          System.out.println("Element at index 8: " + anArray[8]);
          System.out.println("Element at index 9: " + anArray[9]);
     }
} 

program 2:

Kód: Vybrať všetko

class MultiDimArrayDemo {
    public static void main(String[] args) {
        String[][] names = {{"Mr. ", "Mrs. ", "Ms. "},
                            {"Smith", "Jones"}};
        System.out.println(names[0][0] + names[1][0]); //Mr. Smith
        System.out.println(names[0][2] + names[1][1]); //Ms. Jones
    }
}

program 3:

Kód: Vybrať všetko

class ArrayCopyDemo {
    public static void main(String[] args) {
        char[] copyFrom = { 'd', 'e', 'c', 'a', 'f', 'f', 'e',
			    'i', 'n', 'a', 't', 'e', 'd' };
        char[] copyTo = new char[7];

        System.arraycopy(copyFrom, 2, copyTo, 0, 7);
        System.out.println(new String(copyTo));
    }
}

PS: UTFG, dostanes aj http://java.sun.com/docs/books/tutorial ... rrays.html ... odtial su tie 3 "nejake" programy, co robia "nieco" s polom.

PPS: vseobecne zadanie, necakaj zazraky, ked dostanes odpoved