how would you implement an interface in java example calculator [closed]

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开发者_C百科

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I've got a Calculator interface that contains

public interface Calculator {

    public void setOperator(char operator);         
    public void setOperand (double operand);  
    public double getResult();
}

How would i implement this in another class, for a basic calculator???

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Create a class that implements the Calculator interface and implement all the methods as desired.

public class CalculatorImpl implements Calculator {
    public void setOperator(char operator) {
        throw new UnsupportedOperationException("implement me.");
    }         
    public void setOperand (double operand) {
        throw new UnsupportedOperationException("implement me.");
    }  
    public double getResult() {
        throw new UnsupportedOperationException("implement me.");
    }
}