add element to array java code example
Example 1: how to append to an array in java
import java.util.Arrays;
class ArrayAppend {
public static void main( String args[] ) {
int[] arr = { 10, 20, 30 };
System.out.println(Arrays.toString(arr));
arr = Arrays.copyOf(arr, arr.length + 1);
arr[arr.length - 1] = 40;
System.out.println(Arrays.toString(arr));
}
}
Example 2: java array add element
List<String> where = new ArrayList<String>();
where.add(element);
where.add(element);
String[] simpleArray = new String[ where.size() ];
where.toArray( simpleArray );
Example 3: java add element to existing array
String[] rgb = new String[] {"red", "green"};
String[] rgb2 = new String[rgb.length + 1];
System.arraycopy(rgb, 0, rgb2, 0, rgb.length);
rgb2[rgb.length] = "blue";
rgb = rgb2;
Example 4: how to add objects in array java
car redCar = new Car("Red");
car Garage [] = new Car [100];
Garage[0] = redCar;