How are Observer and Observable used? Ans. Objects that subclass the Observable class maintain a list of observers. When an Observable object is updated it invokes the update() method of each of its observers to notify the observers that it has changed state. The Observer interface is implemented by objects that observe Observable objects. - Study24x7

05 Dec 2023 10:21 AM study24x7

study24x7

study24x7

How are Observer and Observable used? Ans. Objects that subclass the Observable class maintain a list of observers. When an Observable object is updated it invokes the update() method of each of its observers to notify the observers that it has changed state. The Observer interf...

See more

Java Technologies Computer Programming

study24x7

Write a comment

Related Questions

class A { public final void show() { System.out.println(A::show() called...
Attempt Now
On the Task bar the time is shown in the.....?
Attempt Now
In a code sign DRLAL is coded as 62014314. How CAMEL is coded ?
Attempt Now
.If in a certain language TEACHER is coded as QBXZEBO, then how is STUDENT coded in the same language?
Attempt Now
.In a row of students, if John , who is 16th from the left, and Johnson, who is 8th from the right, interchange their positio...
Attempt Now
public class Myfile { public static void main (String[] args) { String biz = args[1]; String baz = args[2]; String rip = args...
Attempt Now
class X2 { public X2 x; public static void main(String [] args) { X2 x2 = new X2(); /* Line 6 */ X2 x3 = new X2(); /* Line 7 ...
Attempt Now
public class X { public static void main(String [] args) { X x = new X(); X x2 = m1(x); /* Line 6 */ X x4 = new X(); x2 = x4;...
Attempt Now
Two trains A and B start from Howrah and Patna towards Patna and Howrah respectively at the same time. After passing each oth...
Attempt Now
Two trains A and B start from Howrah and Patna towards Patna and Howrah respectively at the same time. After passing each oth...
Attempt Now

500+ more Questions to answer

Featured Courses

JavaScript & jQuery Online Practice Test All Levels English By Learn N Share - Get latest updates on education

FREE

Free Core Java Online Practice Test All Levels English By Learn N Share - Get latest updates on education

FREE

Ratio,Proportion and Partnerships for Bank and SSC... All Levels हिन्दी By logicalangle

FREE

G.S. Foundation Premium Course All Levels हिन्दी By RAU IAS COACHING

English Special Course for SSC CGL, CPO, GD All Levels English By Topline Coaching

NDA Exam Online Course 2021-2022 Beginners Level English By Sigma Classes

SSC CGL, CPO, CHSL, GD Comprehensive Course All Levels English By Topline Coaching

Popular Pages

SAT (Scholastic Assessment Test)

18 followers
Study24x7

1225 followers
Henry Harvin

60 followers
Vivishka Learning and Test Series

343 followers
RAU IAS COACHING

1611 followers
Daily Current Affairs

2086 followers
Results Alert

748 followers
General Science and History

3144 followers

Featured Courses

JavaScript & jQuery Online Practice Test All Levels English By Learn N Share - Get latest updates on education

FREE

5.0

Free Core Java Online Practice Test All Levels English By Learn N Share - Get latest updates on education

FREE

5.0

Ratio,Proportion and Partnerships for Bank and SSC... All Levels हिन्दी By logicalangle

FREE

5.0

G.S. Foundation Premium Course All Levels हिन्दी By RAU IAS COACHING

2,199

5.0

English Special Course for SSC CGL, CPO, GD All Levels English By Topline Coaching

999

5.0

NDA Exam Online Course 2021-2022 Beginners Level English By Sigma Classes

15,000

5.0

SSC CGL, CPO, CHSL, GD Comprehensive Course All Levels English By Topline Coaching

3,999

5.0

Popular Pages

SAT (Scholastic Assessment Test)

18 followers

Study24x7

1225 followers

Henry Harvin

60 followers

Vivishka Learning and Test Series

343 followers

RAU IAS COACHING

1611 followers

Daily Current Affairs

2086 followers

Results Alert

748 followers

General Science and History

3144 followers

Get the App

Download the Study24x7 App, so you can connect and collaborate.

study24x7

study24x7

Most Related Articles

Page
Post
Course
Article
Privacy Policy
Terms of Use
© 2024 Edubabble Learning Pvt Ltd.