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Various Java Utils

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/**
 * commons - Various Java Utils
 * Copyright (C) 2009  Adrian Cristian Ionescu - https://github.com/acionescu
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *         http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package net.segoia.util.calculator;

public class ExpressionResult {
    private Number number;
    private String string;
    
    public ExpressionResult(Number n){
	number = n;
    }
    
    public ExpressionResult(String s){
	string = s;
    }
    
    public ExpressionResult(Number n, String s){
	this.number = n;
	this.string = s;
    }
    
    public String toString(){
	String res = "";
	if(isNumber()){
	    res += number;
	}
	if( string != null ){
	    res+= " "+string;
	}
	return res;
    }

    public boolean isNumber(){
	return number != null;
    }
    /**
     * @return the number
     */
    public Number getNumber() {
        return number;
    }

    /**
     * @return the string
     */
    public String getString() {
        return string;
    }
    
    
}