** :**  
   :     .

**:**
```java
public class ArrayAccess {
    public static void main(String[] args) {
        //     
        String[] str = {"java", "python", "c++"};
        System.out.println(str[0]);  //  

        //    length - 1
        int[] a = {10, 20, 30, 40, 50};
        System.out.println(a[a.length - 1]);
    }
}
```
##    :
```
java
50
```