numbertoken.java

用JAVA写的计算一段数学表达式的程序

package net.csksoft.util.expcomp;
//Finish CodeFans.net
public class NumberToken extends OpObj {
	private double objVal;
	public NumberToken(){
		objVal = 0;
	}
	public NumberToken(double val){
		objVal = val;
	}
	public double getValue(){
		return objVal;
	}
	public boolean setValue(double newVal)
	{
		this.objVal = newVal;
		return true;
	}
	public int getTokenType()
	{
		return ExpToken.TOKEN_NUMBER_CONST;
	}
}