What is an abstract class and how does it differ from the

Reference no: EM13465327

Question 1: What is an abstract class and how does it differ from a regular class?

Question 2: Why are abstract class constructors defined as protected?

Question 3: Class X defines method M1( ) as abstract. Class Y inherits from Class X and implements the method M1( ). Given the following code, explain why a reference to the abstract class X is allowed to refer to an object of the concrete class Y. Explain what happens when the reference to the abstract class X is used to execute method M1( ).

X obj = new Y( );
obj.M1( );

Question 4: What are interfaces allowed to contain?

Reference no: EM13465327

Questions Cloud

Define a simple interface named motorized with one method : question 1 define a simple interface named motorized with one method maxspeed which returns the maximum attainable

Examples of secondary prevention activities are shelter : 1.examples of secondary prevention activities are shelter services crisis responders police and fire department

What role does research policy development and regulations : what role does research policy development and regulations or laws play in environmental health? choose a resource from

What is the relationship between research and : 1.describe three components of public and community health that differ from individual health.2.how do various levels

What is an abstract class and how does it differ from the : question 1 what is an abstract class and how does it differ from a regular class? question 2 why are abstract class

Social perspectives on gender have changed over time what : social perspectives on gender have changed over time. what might be the next big shift in societal views of men women

Do you think that the civil rights movements of the 1960s : in 150 words answer the following questiondo you think that the civil rights movements of the 1960s would have had the

Organizational change is part of the entire strategy for : organizational change initiativeorganizational change is part of the overall strategy for business success. change is

Discuss some possible methods for helping the maintenance : during a recent worksite inspection you identified a serious hazard and recommend that it be corrected immediately. the

User Account

All Pages