Multiple inheritance in Java

Multiple inheritance:

• A class can extends only one class in java.
• An interface can extends number of interfaces in java.
• More than one extension is called “multiple inheritance”.

interface First
{
}
interface Second
{
}
interface Third extends First, Second
{
	// Multiple inheritance
}

Question: Can’t we implement interface without using ‘implements’?

Answer: Interface is a standard set of specifications and can be implemented by any class.

/*
interface In
{
	void m1();
	void m2();
}
*/
class Test /*implements In*/ 
{
	public void m1(){  }
	public void m2(){  }
	public static void main(String[] args) 
	{
		Test obj = new Test();
		obj.m1();
		obj.m2();
	}
}