/*
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 */
package app7;

/**
 *
 * @author Admin
 */
public class App7 {

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
        // TODO code application logic here
        int[] arr = {1, 2, 3};
        System.out.println("arr[0]=" + arr[0]);
        System.out.println("arr[1]=" + arr[1]);
        System.out.println("arr[2]=" + arr[2]);

        // необходимо использовать св-во length
        int i = 3;
        if(i<arr.length){
            // выход за пределы массива
            System.out.println("arr[3]=" + arr[i]);
        }
        System.out.println("OK!!!");
    }
}