Tag: programming languages

Which method names follow the JavaBeans standard? (Choose all that apply.)

Which are valid declarations? (Choose all that apply.)

Given:

1. enum A { A } 
2. class E2 { 
3.   enum B { B } 
4.   void C() { 
5.     enum D { D } 
6.   } 
7. } 

Which statements are true? (Choose all that apply.)

package testing; public class SimpleClone implements Cloneable { int number = 100; int[] intArray = new int[10]; public SimpleClone() { int number = 100; for (int i = 0; i < intArray.length; i++) { intArray[i] = number; number++; } } public static void main(String[] args) { SimpleClone testclone1 = new SimpleClone(); SimpleClone testclone2; try { testclone2 = (SimpleClone) testclone1.clone(); testclone1.intArray[0] = 1200; testclone2.intArray[0] = 1400; testclone1.number = 1200; System.out.print(" testclone1 intArray[0] = " + testclone1.intArray[0]); System.out.print(" testclone1one2 intArray[0] = " + testclone2.intArray[0]); System.out.print(" testclone1 value of number = " + testclone1.number); System.out.print(" testclone2 value of number = " + testclone2.number); } catch (CloneNotSupportedException e) { // TODO Auto-generated catch block e.printStackTrace(); } } }

package inheritance; class X { Y b = new Y(); X() { System.out.print("X"); } } class Y { Y() { System.out.print("Y"); } } public class Z extends X { Y y = new Y(); Z() { System.out.print("Z"); } public static void main(String[] args) { new Z(); } }

Overriding is an example of runtime polymorphism.