package net.sven_eisenhauer.swa_prakt1;

public abstract class ArithmeticOperation implements ArithmeticExpression{
	protected ArithmeticExpression operand1;
	protected ArithmeticExpression operand2;
	protected String operationSign;
	public ArithmeticOperation(ArithmeticExpression operand1
			,ArithmeticExpression operand2){
		this.operand1 = operand1;
		this.operand2 = operand2;
	}/*
	@Override
	public void print() {
		System.out.print("(");
		operand1.print();
		System.out.print(operationSign);
		operand2.print();
		System.out.print(")");
	}*/
	public String getOperationSign() {
		return operationSign;
	}
	public ArithmeticExpression getLeftOperand() {
		return operand1;
	}
	public ArithmeticExpression getRightOperand() {
		return operand2;
	}
	public abstract Number doOperation(Number opLeft, Number opRight);
}