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- package paqueteCartas;
- import java.util.Random;
- public class Prueba {
- public static int aleatorio(int[]arreglo){
- Random generador = new Random();
- int n = arreglo[generador.nextInt(arreglo.length)];
- //int n = generador.nextInt(1);
- return n;
- }
- public static void mostrarArray(int[]a){
- String cadena = "";
- for(int i= 0;i<a.length;i++){
- String s = Integer.toString(a[i]);
- if (i< a.length-1){
- cadena = cadena + s + ",";
- }
- else{
- cadena = cadena + s;
- }
- }
- System.out.println("{"+cadena+"}");
- }
- public static void main(String[] args) {
- int[] numeros = {1,2,3,4,5,6,7,8,9,10};
- mostrarArray(numeros);
- int temp;
- int i = 0;
- int j = 9;
- temp = numeros[i];
- numeros[i] = numeros[j];
- numeros[j] = temp;
- mostrarArray(numeros);
- }
- }
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