Overloading and bla extends bla
if class A extends class B and they have both got the same name on a method but different arguments does his make it overloading still or is it overriding?thanks in advance.
is it only overloading because they extend each other
or would it be anyway?It's just overloading because you have a class that has two methods with the same name.
and if the arguments where the
same would it still be overloading?No, that would be overriding, and only if that method is inherited.
sorry im asking so
much but i'm having trouble understanding the whole
overloading and overriding situations when its
extending a class is involved,does it make a
differance?thanksYes, it does, to overriding. X defines an implementation that you want to change. If Y doesn't inherit it, there is nochting to change. You'd just be implementing yet another method.
Similar Messages
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OO:overloading and overriding in tandem..Interesting one
Assume Dog IS-A Animal
class test {
public static void main(String[] args){
Animal a = new Dog();
foo(a);
void foo(Dog d){
d.printme();
void foo(Animal a){
a.printme();
}//end of class test
class Animal{
void printme(){
System.out.println("i am in animal");
}//end of class animal
class Dog{
void printme(){
System.out.println("i am in Dog");
}//end of class dog
Question:what will it print and explain how briefly u arrived at that result? (I assume u fix some obvious compile time errors(missing ; etc) as this is just a rough snippet)
NOTES-----------
1.Overloading has to do with reference type
2.Overriding has to do with the object to which it actually pointsok mlk..really sorry for being so naive.I sometimes don't clearly express my doubt. I jus got a doubt in my mind regarding overriding + overloading and i constructed a sample example as a concept(not actual code).
Here's the full fledged program..it compiles fine.And IS-A is perfectly satisfied in this case.
class Animal{
void printme(){
System.out.println("In Animal");
class Dog extends Animal{
void printme(){//overriding the Animal printme() method
System.out.println("In Dog");
public class TestDog {
void foo(Animal a){
a.printme();
void foo(Dog d){
d.printme();
public static void main(String[] args) {
Animal a = new Dog();
TestDog t = new TestDog();
t.foo(a); //method overloading
And it prints In Dog..as expected.Got it.Thanks. -
Adobe Cloud and CS6 extended trial.
I bought CS6 recently and it is registered in my name. For some reason I found myself on a trial of Adobe Cloud and CS6 extended which I do not want. The trial has finished but when I try quitting it, it will not allow me to use my CS6. How do I get round this problem?
Hi Livlah-T,
Everything looked normal with your account but it didn't appear you had completed the 30 day license check.
My recommendation would be
- Launch Adobe Application Manager from either the Start menu (Windows) or Applications folder (Mac) and install all available product updates.
- Once this is complete launch whatever product was showing up as a trial and click the "License this software" and sign in with your Adobe ID.
If the next time you launch the product it is still coming up as a trial, you might try creating a new administrator account and going through the "License this software" process again
Windows 7 - http://windows.microsoft.com/en-IN/windows7/Create-a-user-account
http://social.technet.microsoft.com/wiki/contents/articles/create-a-new-user-account-in-wi ndows-7.aspx
Windows 8 - http://windows.microsoft.com/en-IN/windows-8/create-user-account
10.7 - http://support.apple.com/kb/PH4600
10.8 - http://support.apple.com/kb/PH11468
and double-check nothing is interfering with the 30 day license check process
http://helpx.adobe.com/x-productkb/policy-pricing/activation-network-issues.html
Ensure you can reach
https://lm.licenses.adobe.com
and nothing is blocking access such as the hosts file or firewall software
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What is difference between adobe photoshop and photoshop extended cs5
what is difference between adobe photoshop and photoshop extended cs5
Hi,
The biggest difference is the 3D feature set is only available in Ps Extended CS5. Exclusive to Extended CS5 also are timeline for video editing, Dicom format support, Stack mode blending, analysis measurement tools, and some 32-bit painting capabilities.
Some things have changed for the Photoshop Extended CS6 version, mainly enabling more of the video editing features for both products.
regards,
steve -
What's the difference between "overloading" and "overriding" in Java
What's the difference between "overloading" and "overriding" in Java
hashdata wrote:
What is the real-time usage of these concepts...?Overriding is used when two classes react differently to the same method call. A good example is toString(). For Object it just returns the class name and the identityHashCode, for String it returns the String itself and for a List it (usually) returns a String representation of the content of the list.
Overloading is used when similar functionality is provided for different arguments. A good example is [Arrays.sort()|http://java.sun.com/javase/6/docs/api/java/util/Arrays.html#sort(byte%5B%5D)]: all the sort() methods do the same thing (they sort arrays), but one sorts byte-arrays, another one sorts int-arrays, yet another one sorts Object-arrays.
By the way, you almost certainly mean "real-world" usage. "real-time" (and thus "real-time usage) means something entirely unrelated to your question. -
Adobe Reader 9.3.4 and Pro Extended
I tried to upgrade to the 9.3.4 version of reader and it wouldn't let me for some reason. Something about a missing .msi file in one of the directories. So I used revo uninstaller to remove it and try to reinstall it. I redownloaded the program and the ran the Adobe Reader 9.3.4 Update - setup. It processes to 100 % and then closes. And nothing. so I don't know whats going on. I also downloaded the trial of Adobe Pro Extended and everything went fine up to the install screen. I click the install button and nothing happens, so no clue whats going on with that either. Any ideas?
I tried the first link to install reader and it simply runs to 100% and then closes.
Date: Tue, 5 Oct 2010 08:43:37 -0600
From: [email protected]
To: [email protected]
Subject: Adobe Reader 9.3.4 and Pro Extended
Can you try installing the same from the following locations:
ftp://ftp.adobe.com/pub/adobe/reader/win/9.x/9.3.4/enu/AdbeRdr934_en_US.exe
http://www.adobe.com/cfusion/tdrc/index.cfm?product=acrobat_pro_extended
P.S. The error message that you received while updating Adobe Reader was probably due to the fact that you may have deleted the cached setup files on your system. Hence, it was prompting you to provide the required installer file (.MSI file)
> -
Can we use overload and overwrite concept in OO-abap
hi
can we use overload and overwrite concept in OO-abapHi
CLASS zl_lcl_vehicle DEFINITION.
PUBLIC SECTION.
Signature of method
METHODS: set_make
IMPORTING value(im_make) TYPE string " Pass by value
im_model TYPE string," Pass by reference
ENDCLASS. "zl_lcl_vehicle DEFINITION
CLASS zl_lcl_vehicle IMPLEMENTATION.
Implementation of method.
METHOD set_make.
IF im_make IS NOT INITIAL
AND im_model IS NOT INITIAL.
gv_make = im_make.
gv_model = im_model.
ENDIF.
ENDMETHOD. "set_make
ENDCLASS. "zl_lcl_vehicle
Overloading means changing signature as well as implementation of a method.
Overriding is changing only implementation of method with signature unchanged.
From ABAP perspective, only the CONSTRUCTOR method can be overloaded in a subclass i.e both the signature and implementation can be adapted in subclass.
Any other method can't be overloaded. It can only be redefined/overridden i.e implementation changed with signature unchanged.
In ABAP there is something called a redefinition.
When you inherit a class from a super class, you can redifne a method. You cannot chnage the signature( Interface) of the method. It will remain the same as that of the super class.You must redefine a method in the same visibility section in which it appears in the superclass.
Eg.
CLASS C_SUPER_CLASS DEFINITION .
PUBLIC SECTION.
METHODS: DRIVE ,
STOP.
PROTECTED SECTION.
DATA SPEED TYPE I.
ENDCLASS.
CLASS C_SUPER_CLASS IMPLEMENTATION.
METHOD DRIVE.
SPEED = 0.
WRITE: / 'Bike speed =', SPEED.
ENDMETHOD.
ENDCLASS.
CLASS C_SUB_CLASS DEFINITION INHERITING FROM C_SUPER_CLASS.
PUBLIC SECTION.
METHODS DRIVE REDEFINITION.
ENDCLASS
CLASS C_SUB_CLASS IMPLEMENTATION.
METHOD DRIVE.
SPEED = SPEED + 10.
WRITE: / 'Bicycle speed =', SPEED.
ENDMETHOD.
ENDCLASS.
Regards
Vasu -
What is the difference Photoshop and Photoshop Extended with respect to registry and files
Can someone please help with the difference between Photoshop and Photoshop Extended with respect to files installed or Windows registry.I am aware of the difference in Features.I am not concern about the difference in Features.
True
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Server Overloaded and Warning Status
I have a WebLogic cluster, includes 3 Managed Server running on 2 separate machines (Each has 16Gb Ram and 8 CPU - Sun Sparc). Each start with parameters
Starting WLS with line:
/usr/jdk/instances/jdk1.6.0/bin/java -server -Xms1024m -Xmx2048m -XX:MaxPermSize=128m
Some time ManagedServers have status "OverLoaded" and "Warning". When that happened , I stop and start server and server status return to OK.
Checking the status with "prstat" command, I saw that java process used just from 1Gb Ram to 2Gb Ram and CPU is under 3%, very little CPU used
What I have to do to make server return to OK status without restart?
And how to make server running with OK status everytime?
And How many Managed Server can I create on each machine with that hardware?
Thank you!What I have to do to make server return to OK status without restart?Maybe stop some or all applications can be usefull.
And how to make server running with OK status everytime?You must tuning the enviroment, maybe should adjust JVM parameters passed to weblogic server, check thread pools, etc. For Sun HotSpot JVM, you can use -XX:+AggressiveHeap option for throughput applications, give it a try.
See [WebLogic Server Performance And Tuning|http://download.oracle.com/docs/cd/E13222_01/wls/docs92/perform/index.html]
And How many Managed Server can I create on each machine with that hardware?This decision depends on applications you want run, weblogic resources required, how many clients will be attended, and so on. If your weblogic server using 8GB achieves the goal, then you can setup another instance using the remaining available, and so on.
I hope this helps. -
Photoshop CS5 and CS5 Extended
I would like you to please comment on the differences between Photoshop CS5 and CS5 Extended as it relates to Photographers.
Try the CS forum for best advice, this is only Elements.
http://forums.adobe.com/community/photoshop/general -
What are difficulty between oc4j included Jdeveloper and oc4j extended?
Hi all!
I don't know why i deploy application on oc4j included Jdeveloper when it's run ok but i deploy on Oc4j extented when it's run not ok.
I want to know the difficulty between oc4j included Jdeveloper and oc4j extended? How to config oc4j extented?
i've tried deploy appliction on oc4j extended. i get this error:
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at com.sun.javaws.cache.DownloadProtocol.doDownload(Unknown Source)
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at com.sun.javaws.LaunchDownload.downloadEagerorAll(Unknown Source)
at com.sun.javaws.Launcher.downloadResources(Unknown Source)
at com.sun.javaws.Launcher.handleApplicationDesc(Unknown Source)
at com.sun.javaws.Launcher.handleLaunchFile(Unknown Source)
at com.sun.javaws.Launcher.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
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If you are using JDeveloper 10.1.2 make sure to use the right admin.jar (always point the path to the one in OC4J install ) in your OC4J connection.
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Smart Objects and CS4 Extended
Hello,
I'm wondering if there is a known issue with CS4 Extended and Smart Objects.
It's entirely impossible for me to work with them in CS4, as it constantly unexpectedly quits.
Any attempt to edit the object in Photoshop or in Illustrator and upon updating in Photoshop causes it.
I end having to go back to CS3 if I have to use them.
I have CS4 at home and don't have this issue, so I'm wondering if it's something with Extended. A coworker is having the very same issue also.
We're both working on 2.26 Quad Cores, 10.5.8 and 16 GB of memory.
Any suggestions will be apreciated.
Thanks.
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I have the performance set as: Memory Usage 100%, No Scratch disk as I haven't been given a 2nd HD.
20 States of History and Cache Level at 4.
It's a fairly new machine and I haven't done any maintenance as IT keeps it's permissions to itself and I have limited access to system. I don't think they do any maintenance. That said, it has been doing this from the start. I and my coworker got the machines and CS4 extended together and have experienced this issue right away.
I dump the Prefs a number of times during the week, because of regular slow downs with this. Overall I'm finding CS4 EXT is not as reliable as the regular CS4 I have on my home machine, which never unexpectedly quits or requires a dumping of preferences.
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I have two screens on my Apple Mac and could extend work across both. Now updated to Mavericks and this no longer works. How could I restore the previous functionality? Is somethong wrong?
Hi Eustace.
Thanks for replying to my problem. After posting I noted the "More Like This" box on the right of the screen. The top topic was "Restore old dual screen functionality" and turned out to be the the same question with a surprising answer - in the "Mission Control" dialogue, NOT the "Displays" dialogue. There are five tick boxes at the top of the Mission Control screen and the last of them is "Displays have separate spaces" and this box was ticked through the loading of the Mavericks op. system (presumably). Unticking this box, as advised, restored the 'extended' mode and all is now well.
We live and learn! -
I can hardly see the tools and text to be able to navigate after installing lightroom 4 and cs6 extended from a disk on a new lap top. I changed the screen resolution too 1280x800 and it still looks the same.
Moving this discussion to the Photoshop General Discussion forum.
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