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Sub Class method call
When the Subclass method is called, does the SuperClass constructor execute? If so, which Constructor executes first (Sub Class OR Super Class) for the given below scenarios? a. Given that we are NOT inheriting SuperClass constructor? b. Given that we are inheriting SuperClass constructor?
Shrimp
- Apr 1st, 2016
When a sub class method is called from parent class, constructor will be executed dude, constructor only executed when you create an object
Manjunath_7_89
- Mar 25th, 2016
Super class constructor could be invoked only when super() is used and it has high priority of invoking, once super class constructor is invoked the setted public/protected variables are inherited in subclass
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What is the use of interface in realtime java project ?
Manjunath_7_89
- Mar 25th, 2016
Interface is majorly supported for IS-A relationship ie; Inheritance. Writing an interface is similar to writing a class. But a class describes the attributes and behaviours of an object. And an inter...
meena
- Feb 16th, 2016
Consider a construction of a building. The basic entire PLAN of the building I what an INTERFACE does. Next, the implementation of that PLAN is done by CONCRETE methods. If some of the work is done and still some is left is what ABSTRACT method/class does.
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what is the difference between abstract class & Final class
Manjunath_7_89
- Mar 25th, 2016
Abstract Class
1. Could be Inherited.
2. Couldnt instatiated.
3. Could add few more methods.
4. Incomplete class
Final Class
1. Final version of Class
2. Couldnt be inherited.
3. Could be instantiated.
4. Couldnt add any more methods.baban
- Feb 11th, 2016
Abstract class cannot create object but final class create a object
abstract class which have must a subclassed but final class which have no subclassed -
Can we override the main method?
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Editorial / Best Answer
ashish_setia- Member Since Oct-2006 | Oct 3rd, 2006
check out this example
class Checkmain{
public static void main(String args[]){
args[1]="ashish";
System.out.println("hello ");
}
}
class Checkmain1 extends Checkmain{
public static void main(String args[]){
System.out.println("how r u");
}}
class Jo{
public static void main(String args[]){
String S[]=new String[10] ;Checkmain.main(S);
Checkmain1.main(S);
}}vivek
- Aug 26th, 2017
Yes you can only do that by overriding main method signature for eg main(String[] args) to main(). Certainly there are no other ways to do that because JVM needs strings array arguments to take comma...
Dharmendra Singh
- Sep 15th, 2016
yes we can"java public class HelloWorld { // arguments are passed using the text field below this editor public static void main(String[] args) { String []s =new Str...
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Why we can not override static method?
Manjunath_7_89
- Mar 25th, 2016
Static methods cannot be overridden because method overriding only occurs in the context of dynamic (i.e. runtime) lookup of methods. Static methods (by their name) are looked up statically (i.e. at c...
Ramesh
- Feb 4th, 2016
If a subclass defines a class method with the same signature as a class method in the superclass, the method in the subclass hides the one in the superclass. You didn't override the method a(), because static methods are not inherited. If you had put @Override, you would have seen an error.
