StackOverflow2013

Note that there are some explanatory texts on larger screens.

plurals

POjava override method invocation
primarykey
Id
9290492
data
AcceptedAnswerId
9290877
AnswerCount
4
ClosedDate
CommentCount
0
CommunityOwnedDate
CreationDate
2012-02-15T09:08:19.600
FavoriteCount
1
LastActivityDate
2012-02-16T05:41:42.087
LastEditDate
2012-02-16T05:41:42.087
LastEditorUserId
1176262
OwnerUserId
1176262
ParentId
0
PostTypeId
1
Score
3
ViewCount
4254
LastEditorDisplayName
text
Body
I have a super class: <pre><code>public class SuperClass { public void dosomething() { firstMethod(); secondMethod(); } public void firstMethod() { System.out.println("Super first method"); } public void secondMethod() { System.out.println("Super second method"); } } </code></pre> A sub class: <pre><code>public class SubClass extends SuperClass { public void dosomething() { super.dosomething(); } public void firstMethod() { System.out.println("Sub first method"); } public void secondMethod() { System.out.println("Sub second method"); } } </code></pre> A test class： <pre><code>public static void main(String[] args) { SubClass sub = new SubClass(); sub.dosomething(); SuperClass sup = new SuperClass(); sup.dosomething() } </code></pre> when I run the test method, I got this: <pre><code>Sub first method Sub second method </code></pre> Can you tell me how this happened? In the sub class <code>dosomething</code> method, I called <code>super.dosomething()</code> and I think the super method will be called, but the override method in sub class was called. if I do this: <code>SuperClass superClass = new SuperClass(); superClass.dosomething();</code> the result is: Super first method Super second method The difference is method invocation place. I think there must be something I don`t know ): oops！the super reference pointed to subclass in the first example... like this: <code> SuperClass sub = new SubClass(); sub.firstMethod(); sub.secondMethod(); </code>
Tags
<java><methods><override>
Title
java override method invocation
singulars
PostAcceptedAnswerId
1. PO
 singulars
 PostTypePostTypeId
 PTAnswer
PostParentId
1. This table or related slice is empty.
PostTypePostTypeId
1. PTQuestion
UserLastEditorUserId
1. USFelix
UserOwnerUserId
1. USFelix
plurals
PostLinksPostIdRelatedPostId
1. This table or related slice is empty.
PostLinksRelatedPostIdPostId
1. This table or related slice is empty.
PostsAcceptedAnswerId
1. This table or related slice is empty.
PostsParentIdCreationDate
1. PO
 singulars
 PostTypePostTypeId
 PTAnswer
2. PO
 singulars
 PostTypePostTypeId
 PTAnswer
3. PO
 singulars
 PostTypePostTypeId
 PTAnswer
VotesPostIdCreationDate
1. VO
 singulars
 PostPostId
 POjava override method invocation
 UserUserId
 This table or related slice is empty.
 VoteTypeVoteTypeId
 VTUpMod
2. VO
 singulars
 PostPostId
 POjava override method invocation
 UserUserId
 This table or related slice is empty.
 VoteTypeVoteTypeId
 VTUpMod
3. VO
 singulars
 PostPostId
 POjava override method invocation
 UserUserId
 USKailua Bum
 VoteTypeVoteTypeId
 VTFavorite
CommentsPostId
1. This table or related slice is empty.

Querying!

Guidance

A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.