package array;

import org.junit.Test;

/*

>. once the size of array settled, can't change it any more

>. dimensions: 1 ,2

*/

public class ArrayTest {

public static void main(String[] args) {

// static initialization with items assigned

String[] names = new String[]{"A", "B", "ccc"};

// dynamic initialization, will assign item later

int[] ids = new int[3];

// call item

System.out.println(names[1]);

ids[0] = 1;

ids[1] = 3;

ids[2] = 2;

for (int i = 0; i < ids.length; i++) {

System.out.print(ids[i] + " ");

}

}

@Test

public void pointerTest(){

int[] nums = new int[5];

// the address where nums is pointing at

System.out.println(nums); // [I@deb6432

System.out.println(nums[0]); // 0

nums[1] = 1;

System.out.println(nums[1]);

}

}