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# Introducción Arrays

1. Indica cal e o resultado de executar as seguinte código, e explica cal é o cálculo que fai.

```java
public static void main(String[] args){
        int [] a = {10,21,37,40,51};
        int p=0,i=0;
        for (int x=0;x<a.length;x++)
            if (x%2==0)
                p+=a[x];
            else
                i+=a[x];
        System.out.println(p + " - " + i);
    }
```

2. Indica cal e o resultado de executar as seguinte código, e se é necesario fai correccións para que funcione correctamente. Saida: 20,30,40,50,10

```java
public static void main(String[] args){
        int [] arr = new int [5] {10,20,30,40,50};
        for (int i=0; i<= arr.length()-1;i=+1)
            arr[i]=arr[i+1];
        for (int i=0; i<= arr.length()-1;i=+1)
            System.out.println(arr[i]);
    }
```

3. Realiza un programa que defina un array denominado temperaturaMeses, de 12 enteros, coas temperaturas medias na Coruña. O programa realizará o seguinte:
   1. Inicializará o Array con numeros aleatorios entre 0 e 40 que representan a temperatura
   2. Mostrará por pantalla o contenido do Array de temperaturas
4. Realiza un programa que defina un array denominado notasAlumnos, onde se almacena a nota da asignatura de programación de 20 alumnos. O programa realizará o seguinte:
   1. Inicializará o Array con numeros aleatorios (double) con un decimal
   2. Mostrará todas as notas de cada alumno
   3. Mostrará a media, a nota maior e a nota menor


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