Multiple Inheritance Using Interfaces in Java || Lesson 64 || Java Programming || Learning Monkey ||
Multiple Inheritance Using Interfaces in Java
In this class, We discuss Multiple Inheritance Using Interfaces in Java.
The reader should have prior knowledge of interfaces in Java. Click Here.
The concept of multiple inheritance is not allowed using class.
The below example shows the multiple inheritance using interfaces.
Example:
interface A
{
void m1();
void m2();
}
interface B
{
void m1();
}
class C implements A, B
{
public void m1()
{
System.out.println(“This is m1 method”);
}
public void m2()
{
System.out.println(“This is m2 method”);
}
}
class test
{
public static void main(String args[])
{
C ob = new C();
ob.m1();
}
}
In the above example, we have method “m1” in both interfaces.
But the implementation is done in class C.
We can use both extends and implements for a class.
The below examples show the use of both keywords.
Example:
interface A
{
void m1();
void m2();
}
interface B
{
void m1();
}
class C
{
void m5()
{
System.out.println(“this is class C”);
}
}
Class D extends C implements A, B
{
public void m1()
{
System.out.println(“This is m1 method”);
}
public void m2()
{
System.out.println(“This is m2 method”);
}
}
class test
{
public static void main(String args[])
{
D ob = new D();
ob.m1();
}
}
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