expressionthree.java

来自「同学的一个java 程序」· Java 代码 · 共 18 行

package midLanguage;

import java.util.*;

public class expressionThree extends expression{
	public void formLanguage(int loop){                   //重写formLanuage()方法，形成三元式

			char opera;
			char op1,op2;
			opera = ((Character)B.pop()).charValue();
			op1 = ((Character)A.pop()).charValue();	
			op2 = ((Character)A.pop()).charValue();	
			A.push(new Character((char)(loop+'0')));
			System.out.println("expression "+loop+":  ("+opera+","+op1+","+op2+")");	
	}
	public void print(){
		}
}//end of class nbl