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Interface Example,Real life ,class implementation Like hierarchical inheritance

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Study this program carefully to understand the logic, output, and explanation in a structured way.

Program Code

interface Bank{
float rateOfInterest();
}

class CANARA implements Bank{
 public float rateOfInterest(){
	return 4.15f;
	}
}

class BORADA implements Bank{
 public float rateOfInterest(){
	return 7.7f;
	}
}

class InterfaceClass{
	public static void main(String[] args){
	Bank b=new BORADA();
	System.out.println("Rate Of Interest: "+b.rateOfInterest());
	}
}

  

Output

Rate Of Interest: 7.7
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How to learn from this program

First read the algorithm, then study the program code line by line. After that, compare the code with the output and finally go through the explanation. This approach helps learners understand both the logic and the implementation properly.