import java.io.Serializable; public class MainClass { public static void main(String args[]) { String[] names = new String[10]; if (names instanceof Object[]) System.out.println("Obj[] true"); if (names instanceof Object) System.out.println("Obj true "); double d = Math.sqrt(-1.0); int x = (int) d; System.out.println("d= " + d + " cast to int Value = " + x); long lx = Long.MAX_VALUE; float f = lx; int[] nnn = new int[1000]; Object obj = nnn; Cloneable clobj = nnn; Serializable sb = nnn; int[] xxx = (int[]) nnn.clone(); } }