public class arrayCopy { static int[] a = {1,2,3,4,5}; static int[] b = {6,7,8,9,10}; static int[] c = new int[a.length+b.length]; static int[] d = new int[a.length+b.length]; public static void main(String[] args) { System.arraycopy(a,0,c,0,a.length); System.arraycopy(b,0,c,a.length,b.length); int[] d = Arrays.copyOf(a,5); d = Arrays.copyOf(b, 5); System.out.println(Arrays.toString(c)); System...