java
why iterator in java if we for loop?
View Answers
August 3, 2011 at 12:02 PM
The collection always has a getter armed with the iterator's next value. Much of the collection's internal implementation is done via the iterator.Iterators are saferand used only with collections as they have a little more flexibility since you can go backwards and forwards with them. It will allow you to remove an element.
October 3, 2012 at 2:10 PM
1)An interface contain only abstract methods and constants.
But abstract class contain zero or more abstract methods and also class level variables like instance,static and constant variables.
2) interface does not contain any constructors. But abstract class must contain the constructor.
3) It is not possible to create object to both interface and abstract class. But it is possiblt to invoke the abstract class constructor by using it's subclass constructor.
4) to forcing the all developers to use perticular methods prototypes we use interface.
There are two senarios are their to declare the class as abstract. The first one is , can not allow any one to creat the object to class directly. The another one is a class contain the abstract methods.
Ads
Related Tutorials/Questions & Answers:
java
java diff bt core
java and
java
Advertisements
java
java why iterator in
java if we for loop
java
java explain technologies are used in
java now days and structure
java
java
java different between
java & core
java
Java
Java Whether
Java is pure object oriented Language
JAVA
JAVA how the name came for
java language as "
JAVA
java
java what is
java reflection
java
java in
java does not pointers concept but what is nullpointers in
java?
nullpointer is a runtime Exception
java
what is the size of array in
java ? what is the size of array in
java ?
what is the mean of finalize in
java
java
java Does
java allows multiline comments
Java
Java how to do
java in command prompt
java
java give a simple example for inheritance in
java
java
java give a simple example for inheritance in
java
java
java why to set classpath in
java
java
java why to set classpath in
java
java
java why to set classpath in
java
java
java why to set classpath in
java
java
java Write a
java code to print "ABABBABCABABBA
java
java write a program in
java to acess the email
java
java send me
java interview questions
java
java how use
java method
java
java what are
JAVA applications development tools
Java
Java Whether
Java is Programming Language or it is SOftware
java
java is
java purely object oriented language
java
java why multiple inheritance is not possible in
java
java
java explain object oriented concept in
java
java
java difference between class and interface
Java
Java how to draw class diagrams in
java
java
java write a
java program using filenotfoundexception
java
java How to set
java Policy for applet using jdk 6