multiple inheritance can be manipulated by using interfaces
INTERFACE:
interface is a method which can be created but can not be defined (coding)i.e,methods or interfaces can be defined and the implementation of methods or interfaces can be done in classes.
example:
imports system.console
sub main()
dim obj as new rain() /* create an object for a class to call a
obj.display() method*/
obj.display1()
end sub
public Interface wind()
sub disaplay()
write("interface is created")
end Interface
public Interface ABC()
sub display1()
write("second interface")
end Interface
public class rain() implements wind(),ABC() /*"implements" keyword is used
to implement the interface*/
public sub display implements wind.display()
write("interface wind is defined here")
end sub
end class
example 2:
imports system.console
sub main()
dim obj as new tot()
obj.setdata()
obj.display()
obj.r1()
obj.display()
obj.r2()
obj.display()
obj.r3()
obj.display()
obj.r4()
obj.display()
end sub
public Interface one()
sub r1()
sub r2()
end Interface
public Interface two()
sub r3()
sub r4()
end Interface
public class tot () implements one(),two()
dim i as integer
dim j as integer
dim sum as integer
sub setdata()
i=3
j=2
sum=0
end sub
public sub r1() implements one.r1
sum=i+j
end sub
public sub r2() implements one.r2
sum=i-j
end sub
sub display()
write("sum")
end sub
public sub r4() implements two.r4
sum=i*j
end sub
public sub r3() implements two.r3
sum=i*j/2
end sub
end class
