java使用arity计算器引擎

package com.empty.calculator;

import org.javia.arity.Symbols;
import org.javia.arity.SyntaxException;
import org.junit.Test;


 * To work on unit tests, switch the Test Artifact in the Build Variants view.
 */
public class  {

    
    public void testExpresion() throws SyntaxException {
        Symbols symbols = new Symbols();
		//直接把表达式放进去
		double result=symbols.eval("1+2/3");
        System.out.println(""+result);
    }

}